Publications

Publications

Prof. Dr. Beatriz Roldán Cuenya

2021

Three-way catalysis with bimetallic supported Pd-Au catalysts: Gold as a poison and as a promotor
V. Ulrich, B. Moroz, P. Pyrjaev, I. Sinev, A. Bukhtiyarov, E. Gerasimov, V. Bukhtiyarov, B. Roldan Cuenya, W. Grünert
Appl. Catal. B: Environ. 282, 119614 (2021).

2020

Pt-Sn-Co Nanocubes as Highly Active Catalysts for Ethanol Electro-Oxidation
R. Rizo, A. Bergmann, J. Timoshenko, F. Scholten, C. Rettenmaier, H. S. Jeon, Y.-T. Chen, A. Yoon, A. Bagger, J. Rossmeisl, B. Roldan Cuenya
J. Catal., accepted (2020)

Assessing the influence of supercritical carbon dioxide on the electrochemical reduction to formic acid using carbon-supported copper catalysts
K. junge Puring, O. Evers, M. Prokein, D. Siegmund, F. Scholten, N. Mölders, M. Renner, B. Roldan Cuenya, M. Petermann, E. Weidner, U.-P. Apfel
ACS Catalysis, accepted (2020)

Potential-dependent Morphology of Copper Catalysts During CO2 Electroreduction Revealed by In Situ Atomic Force Microscopy
G. H. Simon, C. S. Kley, B. Roldan Cuenya
Angew. Chem. Int. Ed., accepted 2020, DOI: 10.1002/anie.202010449

Reversible water-induced phase changes of cobalt oxide nanoparticles
D. Hein, G. Wartner, A. Bergmann, M. Bernal, B. Roldan Cuenya, R. Seidel
ACS Nano, accepted (2020)

Uncovering the Electrochemical Interface of Low-Index Copper Surfaces in Deep Groundwater Environments
J. Halldin Stenlid, E. Campos dos Santos, R. M. Arán Ais, A. Bagger, A. J. Johansson, B. Roldan Cuenya, J. Rossmeisl, L. G. M. Pettersson
Electrochim. Acta, accepted (2020)

The Structure of a Silica Thin Film on Oxidized Cu(111): Conservation of Honeycomb Lattice and Role of the Interlayer
J. Navarro, S. Tosoni, J. Bruce, L. Chaves, M. Heyde, G. Pacchioni, B. Roldan Cuenya
J. Phys. Chem. C, accepted (2020)

Operando NRIXS and XAFS Investigation of Segregation Phenomena in Fe-Cu and Fe-Ag Nanoparticle Catalysts during CO2 Electroreduction
S. Kunze, P. Grosse, M. T. Bernal Lopez, I. Sinev, I. Zegkinoglou, H. Mistry, J. Timoshenko, M. Y. Hu, J. Zhao, E. E. Alp, S. W. Chee, B. Roldan Cuenya
Angew. Chem. Int. Ed. (2020), DOI: 10.1002/anie.202010535

Transition metal-based catalysts for the electrochemical CO2 reduction: from atoms and molecules to nanostructured materials
F. Franco, C. Rettenmaier, H. S. Jeon, B. Roldan Cuenya
Chem. Soc. Rev. 49, 6884 (2020). PDF

Electrocatalytic CO2 Reduction on CuOx Nanocubes Tracking the Evolution of Chemical State, Geometric Structure, and Catalytic Selectivity using Operando Spectroscopy
T. Möller, F. Scholten, T. Ngo Thanh, I. Sinev, J. Timoshenko, X. Wang, Z. Jovanov, M. Gliech, B. Roldan Cuenya, A. S. Varela, P. Strasser
Angew. Chem. Int. Ed. 59, 17974 (2020). PDF

In situ/Operando Electrocatalyst Characterization by X-ray Absorption Spectroscopy
J. Timoshenko, B. Roldan Cuenya
Chem. Rev. 49, 6884 (2020). PDF

Imaging Electrochemically Synthesized Cu2O Cubes and Their Subsequent Evolution under Conditions Relevant to CO2 Electroreduction
R. M. Arán-Ais, R. Rizo, P. Grosse, G. Algara Siller, K. Démbélé, M. Plodinec, T. Lunkenbein, S. W. Chee, B. Roldan Cuenya
Nature Commun. 11, 3489 (2020). PDF

Revealing the active phase of copper during the electroreduction of CO2 in aqueous electrolyte by correlating in situ X-ray spectroscopy and in situ electron microscopy
J. Velasco-Vélez, R. Mom, L. Sandoval, L. Falling, C. Chuang, D. Gao, T. Jones, Q. Zhu, R. Arrigo, B. Roldan Cuenya, A. Knop-Gericke, T. Lunkenbein, R. Schlögl
ACS Energy Lett. 5, 2106 (2020). PDF

In-situ structure and catalytic mechanism of NiFe and CoFe layered double hydroxides during oxygen evolution
F. Dionigi, Z. Zeng, I. Sinev, T. Merzdorf, S. Deshpande, M. Bernal Lopez, S. Kunze, I. Zegkinoglou, H. Sarodnik, D. Fan, A. Bergmann, J. Drnec, J. Ferreira de Araujo, M. Gliech, D. Teschner, J. Zhu, Wei-Xue Li, J. Greeley, B. Roldan Cuenya, P. Strasser
Nature Commun. 11, 2522 (2020). PDF

The role of in situ generated morphological motifs and Cu(I) species in C2+ product selectivity during CO2 pulsed electroreduction
R. M. Arán-Ais, F. Scholten, S. Kunze, R. Rizo, B. Roldan Cuenya
Nature Energy 5, 317 (2020).

Interface-related magnetic and vibrational properties in Fe/MgO heterostructures from nuclear resonant spectroscopy and first-principles calculations
B. Eggert, M. E. Gruner, K. Ollefs, E. Schuster, N. Rothenbach, M. Y. Hu, J. Zhao, T. S. Toellner, W. Sturhahn, R. Pentcheva, B. Roldan Cuenya, E. E. Alp, H. Wende, W. Keune
Phys. Rev. Materials 4, 044402 (2020).

Linking the Evolution of Catalytic Properties and Structural Changes in Copper-Zinc Nanocatalysts using Operando EXAFS and Neural-Networks
J. Timoshenko, H. S. Jeon, I. Sinev, F. Haase, A. Herzog, B. Roldan Cuenya
Chem. Sci. 11, 3727 (2020). PDF

On the reversible deactivation of cobalt ferrite spinel nanoparticles applied in selective 2-propanol oxidation
S. Anke, T. Falk, G. Bendt, I. Sinev, M. Hävecker, H. Antoni, I. Zegkinoglou, H. S. Jeon, A. Knop-Gericke, R. Schlögl, B. Roldan Cuenya, S. Schulz, M. Muhler
J. Catal. 382, 57 (2020).

2019

Operando Insight into the Correlation between the Structure and Composition of CuZn Nanoparticles and their Selectivity for the Electrochemical CO2 Reduction
H. S. Jeon, J. Timoshenko, F. Scholten, I. Sinev, A. Herzog, F. Haase, B. Roldan Cuenya
JACS 141, 19879 (2019). PDF

Electrochemical CO2 reduction
M. Koper, B. Roldan Cuenya
in: Research needs towards sustainable production of fuels and chemicals. Eds. J. K. Norskov, A. Latimer, and C. F. Dickens, Energy-X, Grenoble, p. 19 (2019). PDF

The role of the copper oxidation state in the electrocatalytic reduction of CO2 into valuable hydrocarbons
J.-J. Velasco-Vélez, T. Jones, D. Gao, E. Carbonio, R. Arrigo, C.-J. Hsu, Y.-C. Huang, C. L. Dong, J.-M. Chen, J.-F. Lee, P. Strasser, B. Roldan Cuenya, R. Schloegl, A. Knop-Gericke, C. H. Chuang
ACS Sustain. Chem. Eng. 7, 1485 (2019).

Selective CO2 Electroreduction to Ethylene and Multicarbon Alcohols via Electrolyte-Driven Nanostructuring
D. Gao, I. Sinev, F. Scholten, R. M. Arán-Ais, N. J. Divins, K. Kvashnina, J. Timoshenko, B. Roldan Cuenya
Angew. Chem. Int. Ed. 58, 17047 (2019). PDF

Operando Insights into Nanoparticle Transformations during Catalysis
A. Bergmann, B. Roldan Cuenya
ACS Catalysis 9, 10020 (2019). PDF

Ab Initio Cyclic Voltammetry on Cu(111), Cu(100) and Cu(110) in Acidic, Neutral and Alkaline Solutions
A. Bagger, R. M. Arán-Ais, J.H. Stenlid, E. Campos dos Santos, L. Arnarson, K. Degn Jensen, M. Escudero-Escribano, B. Roldan Cuenya, J. Rossmeisl
Chem. Phys. Chem. 20, 3096 (2019).

Is There a Negative Thermal Expansion in Supported Metal Nanoparticles?: An in situ X-ray Absorption Study Coupled with Neural Network Analysis
J. Timoshenko, M. Ahmadi, B. Roldan Cuenya
J. Phys. Chem. C 123, 20594 (2019). PDF

Bio-inspired design: bulk iron–nickel sulfide allows for efficient solvent-dependent CO2 reduction
S. Piontek, K. Junge Puring, D. Siegmund, M. Smialkowski, I. Sinev, D. Tetzlaff, B. Roldan Cuenya, U.-P. Apfel
Chem. Sci. 10, 1075 (2019). PDF

Water Solvation of Charged and Neutral Gold Nanoparticles
F. Novelli, M. Bernal Lopez, G. Schwaab, B. Roldan Cuenya, M. Havenith
J. Phys. Chem. B 123, 6521 (2019).

Selective 2‑Propanol Oxidation over Unsupported Co3O4 Spinel Nanoparticles: Mechanistic Insights into Aerobic Oxidation of Alcohols
S. Anke, G. Bendt, I. Sinev, H. Hajiyani, H. Antoni, I. Zegkinoglou, H. S. Jeon, R. Pentcheva, B. Roldan Cuenya, S. Schulz, M. Muhler
ACS Catalysis 9, 5974 (2019).

Shape-Controlled Nanoparticles as Anodic Catalysts in Low Temperature Fuel Cells
R. Rizo, B. Roldan Cuenya
ACS Energy Lett. 4, 1484 (2019). PDF

Plasma-modified dendritic Cu catalyst for CO2 electroreduction
F. Scholten, I. Sinev, M. Bernal, B. Roldan Cuenya
ACS Catalysis 9, 5496 (2019). PDF

Piece by Piece—Electrochemical Synthesis of Individual Nanoparticles and their Performance in ORR Electrocatalysis
M. V. Evers, M. Bernal, B. Roldan Cuenya, K. Tschulik
Angew. Chem. Int. Ed. 58, 8221 (2019).

Tuning the Structure of Pt Nanoparticles Through Support Interactions: An In Situ Polarized X-ray Absorption Study Coupled with Atomistic Simulations
M. Ahmadi, J. Timoshenko, F. Behafarid, B. Roldan Cuenya
J. Phys. Chem. C 123, 10666 (2019). PDF

Enhanced stability and CO/Formate selectivity of plasma-treated SnOx/AgOx catalysts during CO2 electroreduction
Y.-W. Choi, F. Scholten, I. Sinev, B. Roldan Cuenya
J. Am. Chem. Soc. 141, 5261 (2019). PDF

Rational catalyst and electrolyte design for CO2 electroreduction towards multicarbon products
D. Gao, R. M. Aran Ais, H. S. Jeon, B. Roldan Cuenya
Nature Catal. 2, 198 (2019). PDF

Partial oxidation of methane to syngas over nickel-based catalysts: influence of support type, addition of rhodium and preparation method
C. Alvarez-Galvan, M. Melian, L. Ruiz-Matas, J. Luis Eslava, R. M. Navarro, M. Ahmadi, B. Roldan Cuenya, J. Luis G. Fierro
Front. Chem. 7, Article 104 (2019). PDF

Surface Segregation in CuNi Nanoparticle Catalysts during CO2 Hydrogenation: the Role of CO in the Reactant Mixture
I. Zegkinoglou, L. Pielsticker, Z.-K. Han, N. Divins, D. Kordus, Y.-T. Chen, C. Escudero, V. Perez-Dieste, B. Zhu, Y. Gao, B. Roldan Cuenya
J. Phys. Chem. C 123, 8421 (2019). PDF

Role of Boron and Phosphorus in Enhanced Electrocatalytic Oxygen Evolution by Nickel Borides and Nickel Phosphides
J. Masa, C. Andronescu, H. Antoni, S. Seisel, K. Elumeeva, S. Barwe, S. Marti-Sanchez, J. Arbiol, I. Sinev, B. Roldan Cuenya, M. Muhler, W. Schuhmann
ChemElectroChem 6, 235 (2019).

2018

Prism-shaped Cu nanocatalysts for electrochemical CO2 reduction to ethylene
H. S. Jeon, S. Kunze, F. Scholten, B. Roldan Cuenya
ACS Catalysis 8, 531 (2018). PDF

Ir-Ni Bimetallic OER Catalysts Prepared by Controlled Ni Electrodeposition on Irpoly and Ir(111)
E. Özer, I. Sinev, A. M. Mingers, J. Araujo, T. Kropp, M. Mavrikakis, K. J. J. Mayrhofer, B. Roldan Cuenya, and P. Strasser
Surfaces 1, 165 (2018). PDF

Segregation phenomena in size-selected bimetallic CuNi nanoparticle catalysts
L. Pielsticker, I. Zegkinoglou, N. J. Divins, H. Mistry, Y.-T. Chen, A. Kostka, J. A. Boscoboinik, B. Roldan Cuenya
J. Phys. Chem. B 122, 919 (2018). PDF

Highly Active Single-Layer MoS2 Catalyst Synthesized by Swift Heavy Ion Irradiation
L. Madauß, I. Zegkinoglou, H. Vázquez Muiños, Y.-W. Choi, S. Kunze, M.-Q. Zhao, C. H. Naylor, P. Ernst, E. Pollmann, O. Ochedowski, H. Lebius, A. Benyagoub, B. Ban d-Etat, A. T. C. Johnson, F. Djurabekova, B. Roldan Cuenya, M. Schleberger
Nanoscale 10, 22908 (2018). PDF

Structure- and Electrolyte-Sensitivity in CO2 Electroreduction
R. M. Aran Ais, D. Gao, B. Roldan Cuenya
Acc. Chem. Res. 51, 2906 (2018). PDF

Activity and Selectivity Control in CO2 Electroreduction to Multicarbon Products over CuOx Catalysts via Electrolyte Design
D. Gao, I. T. McCrum, S. Deo, Y.-W. Choi, F. Scholten, W. Wan, J. G. Chen, M. J. Janik, B. Roldan Cuenya
ACS Catal. 8, 10012 (2018). PDF

Probing the Chemical State of Tin Oxide NP Catalysts during CO2 Electroreduction: A Complementary Operando Approach
A. Dutta, A. Kuzume, V. Kaliginedi, M. Rahaman, I. Sinev, M. Ahmadi, B. Roldan Cuenya, S. Vesztergom, P. Broekmann
Nano Energy 53, 828 (2018).

CO2 Electroreduction on Copper-Cobalt Nanoparticles: Size and Composition Effect
M. T. Bernal Lopez, A. Bagger, F. Scholten, I. Sinev, A. Bergmann, M. Ahmadi, J. Rossmeisl, B. Roldan Cuenya
Nano Energy 53, 27 (2018). PDF

Reactivity Determinants in Electrodeposited Cu Foams for Electrochemical CO2 Reduction
K. Klingan, T. Kottakkat, Z. P. Jovanov, S. Jiang, C. Pasquini, F. Scholten, P. Kubella, A. Bergmann, B. Roldan Cuenya, C. Roth, H. Dau
ChemSusChem 11, 3449 (2018).

Operando Evolution of the Structure and Oxidation State of Size-Controlled Zn Nanoparticles during CO2 Electroreduction
H. S. Jeon, I. Sinev, F. Scholten, N. Divins, I. Zegkinoglou, L. Pielsticker, B. Roldan Cuenya
JACS 140, 9383 (2018). PDF

Microtomography-Based CFD Modeling of a Fixed-Bed Reactor with an Open-Cell Foam Monolith and Experimental Verification by Reactor Profile Measurements
Y. Dong, O. Korup, J. Gerdts, B. Roldan Cuenya, R. Horn
Chem. Eng. J. 353, 176 (2018).

Influence of interfaces on the phonon density of states of nanoscale metallic multilayers: Phonon confinement and localization
W. Keune, S. Hong, M. Y. Hu, J. Zhao, T. S. Toellner, E. E. Alp, W. Sturhahn, T. S. Rahman, B. Roldan Cuenya
Phys. Rev. B 98, 024308 (2018). PDF

Three-way catalysis with supported gold catalysts: Poisoning effects of hydrocarbons
V. Ulrich, C. Froese, B. Moroz, P. Pyrjaev, E. Gerasimov, I. Sinev, B. Roldan Cuenya, M. Muhler, V. Bukhtiyarov, W. Grünert
Appl. Catal. B: Environ. 237, 1021 (2018).

The chemical identity, state and structure of catalytically active centers during the electrochemical CO2 reduction on porous Fe-nitrogen-carbon (Fe-N-C) materials
N. Leonard, W. Ju, I. Sinev, J. Steinberg, F. Luo, A. S. Varela, B. Roldan Cuenya, and P. Strasser
Chem. Sci. 9, 5064 (2018). PDF

Dynamic Changes in the Structure, Chemical State and Catalytic Selectivity of Cu Nanocubes during CO2 electroreduction: Size and Support Effects
P. Grosse, D. Gao, F. Scholten, I. Sinev, H. Mistry, B. Roldan Cuenya
Angew. Chem. Int. Ed. 57, 6192 (2018). PDF

Influence of the Fe : Ni Ratio and Reaction Temperature on the Efficiency of (FexNi1-x)9S8 Electrocatalysts Applied in the Hydrogen Evolution Reaction
S. Piontek, C. Andronescu, A. Zaichenko, B. Konkena, J. Bharathi; K. Puring, B. Marler, H. Antoni, I. Sinev, M. Muhler, D. Mollenhauer, B. Roldan Cuenya, W. Schuhmann, U-P. Apfel
ACS Catal. 8, 987 (2018).

Efficient electrochemical hydrogen peroxide production from molecular oxygen on nitrogen-doped mesoporous carbon catalysts
Y. Sun, I. Sinev, W. Ju, A. Bergmann, S. Dresp, S. Kühl, C. Spoeri, H. Schmies, H. Wang, D. Bernsmeier, B. Paul, R. Schmack, R. Kraehnert, B. Roldan Cuenya, P. Strasser
ACS Catal. 8, 2844 (2018).

2017

Operando phonon studies of the protonation mechanism in highly active hydrogen evolution reaction pentlandite catalysts,
I. Zegkinoglou, A. Zendegani, I. Sinev, S. Kunze, H. Mistry, H. S. Jeon, J. Zhao, M. Hu, E. E. Alp, S. Piontek, M. Smialkowski, U.-P. Apfel, F. Körmann, J. Neugebauer, T. Hickel, B. Roldan Cuenya
J. Am. Chem. Soc. 139, 14360 (2017). PDF

Understanding activity and selectivity of metal-nitrogen-doped carbon catalysts for electrochemical reduction of CO2
W. Ju, A. Bagger, G.-P. Hao, A. Varela, I. Sinev, V. Bon, B. Roldan Cuenya, S. Kaskel, J. Rossmeisl, P. Strasser
Nature Commun. 8, 944 (2017). PDF

Enhanced carbon dioxide electroreduction to carbon monoxide over defect rich plasma-activated silver catalysts
H. Mistry, Y. Choi, A. Bagger, F. Scholten, C. Bonifacio, I. Sinev, N. J. Divins, I. Zegkinoglou, H. S. Jeon, K. Kisslinger, E. A. Stach, J. C. Yang, J. Rossmeisl, B. Roldan Cuenya
Angew. Chem. 56, 11394 (2017). PDF

Improved CO2 Electroreduction Performance on Plasma-Activated Cu Catalysts via Electrolyte Design: Halide Effect
D. Gao, F. Scholten, B. Roldan Cuenya
ACS Catal. 7, 5112 (2017). PDF

Plasma-Activated Copper Nanocube Catalysts for Efficient Carbon Dioxide Electroreduction to Hydrocarbons and Alcohols
D. Gao, I. Zegkinoglou, N. J. Divins, F. Scholten, I. Sinev, P. Grosse, and B. Roldan Cuenya
ACS Nano 11, 4825 (2017). PDF

NH3 post-treatment induces high activity of Co-based electrocatalysts supported on carbon nanotubes for the oxygen evolution reaction
F. Yang, W. Xia, A. Maljusch, J. Masa, D. Hollmann, I. Sinev, B. Roldan Cuenya, W. Schuhmann, M. Muhler
ChemElectroChem 4, 2091 (2017). PDF

New insights into working nanostructured electrocatalysts through operando spectroscopy and microscopy
Y. Choi, H. Mistry, B. Roldan Cuenya
Curr. Opin. Electrochem. 1, 95 (2017). PDF

Ultrathin high surface area nickel boride (NixB) nanosheets as highly efficient electrocatalyst for oxygen evolution
J. Masa, I. Sinev, H. Mistry, E. Ventosa, M. de la Mata, J. Arbiol, M. Muhler, B. Roldan Cuenya, W. Schuhmann
Adv. Energy Mater. 7, 1700381 (2017). PDF

Size-dependent reactivity of gold-copper bimetallic nanoparticles during CO2 electroreduction
H. Mistry, R. Reske, P. Strasser, B. Roldan Cuenya
Catal. Today 288, 30 (2017). PDF

Synergistic Effect of Cobalt and Iron in Layered Double Hydroxide Catalysts for the Oxygen Evolution Reaction
F. Yang, K. Sliozberg, I. Sinev, H. Antoni, A. Bähr, K. Ollegott, W. Xia, J. Masa, W. Grünert, B. Roldan Cuenya, W. Schuhmann, M. Muhler
ChemSusChem 10, 156 (2017). PDF

2016

Low Overpotential Water Splitting Using Cobalt-Cobalt Phosphide Nanoparticles Supported on Nickel Foam
J. Masa, S. Barwe, C. Andronescu, I. Sinev, A. Ruff, J. Kolleboyina, K. Elumeeva, B. Konkena, B. Roldan Cuenya, W. Schuhmann
ACS Energy Lett. 1, 1192 (2016).

Impact of lattice dynamics on the phase stability of metamagnetic FeRh: bulk and thin films
M. Wolloch, M.E. Gruner, W. Keune, P. Mohn, J. Redinger, F. Hofer, D. Suess, R. Podloucky, J. Landers, S. Salamon, F. Scheibel, D. Spoddig, R. Witte, B. Roldan Cuenya, O. Gutfleisch, M.Y. Hu, J. Zhao, T. Toellner, E.E. Alp, M. Siewert, P. Entel, R. Pentcheva, H. Wende
Phys. Rev. B 94, 174435 (2016).

Tailoring the Catalytic Properties of Metal Nanoparticles via Support Interactions
M. Ahmadi, H. Mistry, B. Roldan Cuenya
J. Phys. Chem. Lett. 7, 3519 (2016).

Highly selective plasma-activated copper catalysts for carbon dioxide reduction to ethylene
H. Mistry, A. Varela, C.S. Bonifacio, I. Zegkinoglou, I. Sinev, Y.-W. Choi, K. Kisslinger, E. A. Stach, J.C. Yang, P. Strasser, B. Roldan Cuenya
Nature Commun. 7, 12123 (2016).

Size-dependent adhesion energy of shape-selected Pd and Pt Nanoparticles
M. Ahmadi, F. Behafarid, B. Roldan Cuenya
Nanoscale 8, 11635 (2016).

Probing the Dynamic Structure and Chemical State of Au Nanocatalysts during the Electrochemical Oxidation of 2-Propanol
Y. Choi, I. Sinev, H. Mistry, I. Zegkinoglou, B. Roldan Cuenya
ACS Catal. 6, 3396 (2016).

Nanostructured electrocatalysts with tunable activity and selectivity
H. Mistry, A. Varela, S. Kühl, P. Strasser, B. Roldan Cuenya
Nature Rev. Mater. 1, 16009 (2016).

Silver-doped zinc oxide single nanowire multifunctional nanosensor with a significant enhancement in response
O. Lupan, V. Cretu, V. Postica, M. Ahmadi, B. Roldan Cuenya, L. Chow, I. Tiginyanu, B. Viana, T. Pauporté, R. Adelung
Sensor Actuator B 223, 893 (2016).

Tuning catalytic selectivity at the mesoscale via interparticle interactions
H. Mistry, F. Behafarid, R. Reske, A. Varela, P. Strasser, B. Roldan Cuenya
ACS Catal. 6, 1075 (2016).

2015

Shape-Selection of Thermodynamically Stabilized Colloidal Pd and Pt Nanoparticles Controlled via Support Effects
M. Ahmadi, F. Behafarid, C. Holse, J. Nielsen, B. Roldan Cuenya
J. Phys. Chem. C. 119, 29178 (2015).

Carbon Monoxide-Induced Stability and Atomic Segregation Phenomena in Shape-Selected Octahedral PtNi Nanoparticles
M. Ahmadi, C. Cui, H. Mistry, P. Strasser, B. Roldan Cuenya
ACS Nano 9, 10686 (2015).

Element-Resolved Thermodynamics of Magnetocaloric LaFe13−xSix
M. E. Gruner, W. Keune, B. Roldan Cuenya, C. Weis, J. Landers, S. I. Makarov, D. Klar, M. Y. Hu, E. E. Alp, J. Zhao, M. Krautz, O. Gutfleisch, and H. Wende
Phys. Rev. Lett. 114, 057202 (2015).

Nanocatalysis: Size- and Shape-dependent Chemisorption and Catalytic Reactivity
B. Roldan Cuenya, F. Behafarid
Surf. Sci. Reports 70, 135 (2015).

2014

Exceptional Size-Dependent Activity Enhancement in the Electroreduction of CO2 over Au Nanoparticles
H. Mistry, R. Reske, Z. Zeng, Z-J. Zhao, J. Greeley, P. Strasser, B. Roldan Cuenya
J. Am. Chem. Soc. 136, 16473 (2014).

In situ transmission electron microscopy study of sintering and redispersion phenomena over size-selected metal nanoparticles: environmental effects
F. Behafarid, S. Pandey, R. Diaz, E. Stach, B. Roldan Cuenya
Phys. Chem. Chem. Phys. 16, 18176 (2014).

Hydrogen Evolution from Metal - Surface Hydroxyl Interaction
Y. Fujimori, W. Kaden, M. Brown, B. Roldan Cuenya, M. Sterrer, H.-J. Freund
J. Phys. Chem. C. 118, 17717 (2014).

Role and Evolution of Nanoparticle Structure and Chemical State during the Oxidation of NO over Size- and Shape-Controlled Pt/γ-Al2O3 Catalysts under Operando Conditions
E. Lira, L. R. Merte, F. Behafarid, L. K. Ono, L. Zhang, and B. Roldan Cuenya
ACS Catal. 4, 1875 (2014).

Particle size effects in the catalytic electroreduction of CO2 on Cu nanoparticles
R. Reske, H. Mistry, F. Behafarid, B. Roldan Cuenya, P. Strasser
J. Am. Chem. Soc. 136, 6978 (2014).

Carbon monoxide-assisted size confinement of bimetallic alloy nanoparticles
C. Cui, L. Gan, M. Neumann, M. Heggen, B. Roldan Cuenya, P. Strasser
JACS Comm. 136, 4813 (2014).

Structural and electronic properties of micellar Au nanoparticles: size and ligand effects
F. Behafarid, J. Matos, S. Hong, L. Zhang, T.S. Rahman, B. Roldan Cuenya
ACS Nano 8, 6671 (2014).

Shape Dependent catalytic oxidation of 2-butanol over Pt nanoparticles supported on γ-Al2O3
H. Mistry, F. Behafarid, E. Zhou, E. Zhou, E. Zhou, L.K. Ono, L. Zhang, B. Roldan Cuenya
ACS Catal. 4, 109 (2014).

Pressure dependent effect of hydrogen adsorption on structural and electronic properties of Pt/γ-Al2O3 nanoparticles
H. Mistry, F. Behafarid, S.R. Bare, B. Roldan Cuenya
Chem. Cat. Chem. 6, 348 (2014).

2013

Nano-Gold Diggers: Au-Assisted SiO2-Decomposition and Desorption in Supported Nanocatalysts
L.K. Ono, F. Behafarid, B. Roldan Cuenya
ACS Nano 9, 10327 (2013).

Long-Range Segregation Phenomena in Shape-Selected Bimetallic Nanoparticles: Chemical State Effects
M. Ahmadi, F. Behafarid, C. Cui, P. Strasser, B. Roldan Cuenya
ACS Nano 7, 9195 (2013).

Towards the understanding of sintering phenomena at the nanoscale: geometric and environmental effects
F. Behafarid, B. Roldan Cuenya
Topics in Catalysis 56, 1542 (2013).

Correlating catalytic methanol oxidation with the structure and oxidation state of size-selected Pt nanoparticles
L. R. Merte, M. Ahmadi, F. Behafarid, L. K. Ono, E. Lira, J. Matos, L. Li, J.C. Yang, and B. Roldan Cuenya
ACS Catal. 3, 1460 (2013).

Eu-doped ZnO nanowire arrays grown by electrodeposition
O. Lupan, T. Pauporté, B. Viana, P. Aschehoug, M. Ahmadi, B. Roldan Cuenya, Y. Rudzevich, Y. Lin, L. Chow
Appl. Surf. Sci. 282, 782 (2013).

Shape-selective bimetallic nanoparticle electrocatalysts: evolution of their atomic-scale structure, chemical composition, and electrochemical reactivity under various chemical environments
C.-H. Cui, M. Ahmadi, F. Behafarid, L. Gan, M. Neumann, M. Heggen, B. Roldan Cuenya, P. Strasser
Faraday Discuss. 162, 91 (2013).

Trends in binding strength of surface species on nanoparticles: how does the adsorption energy scale with the particle size?
M. Peter, J. M. Flores Camacho, S. Adamovski, L. K. Ono, K.-H. Dostert, C. P. O'Brien, B. Roldan Cuenya, S. Schauermann, H.-J. Freund
Angew. Chem. Int. Ed. 52, 1 (2013).

Synthesis and characterization of Cu-doped ZnO one-dimensional structures for miniaturized sensor applications with faster response
L. Chow, O. Lupan, G. Chai, H. Khallaf, L.K. Ono, B. Roldan Cuenya, I.M. Tiginyanu, V.V. Ursaki, V. Sontea, A. Schulte
Sensors and Actuators A 189, 399 (2013).

Metal Nanoparticle Catalysts beginning to Shape-up
B. Roldan Cuenya
Acc. Chem. Res. 46, 1682 (2013).

2012

Stability of Pt Nanoparticles Supported on SiO2/Si(111): A High Pressure X-ray Photoelectron Spectroscopy Study
S. Porsgaard, L.R. Merte, L. K. Ono, F. Behafarid, J. Matos, S. Helveg, M. Salmeron, B. Roldan Cuenya, and F. Besenbacher
ACS Nano 6, 10743 (2012).

Electrochemical oxidation of size-selected Pt nanoparticles studied using in situ high-energy-resolution x-ray absorption spectroscopy
L.R. Merte, F. Behafarid, D.J. Miller, D. Friebel, S. Cho, F. Mbuga, D. Sokaras, R. Alonso-Mori, T.-C. Weng, D. Nordlund, A. Nilsson, B. Roldan Cuenya
ACS Catal. 2, 2371 (2012).

Size-dependent evolution of the atomic vibrational density of states and thermodynamic properties of isolated Fe nanoparticles
B. Roldan Cuenya, L.K. Ono, J.R. Croy, K. Paredis, A. Kara, H. Heinrich, J. Zhao, E.E. Alp, A. T. DelaRiva, A. Datye, E. A. Stach, W. Keune
Phys. Rev. B 86, 165406 (2012).

Highly Sensitive and Selective Hydrogen Single-Nanowire Nanosensor
O. Lupan, L. Chow, Th. Pauporté, L.K. Ono, B. Roldan Cuenya, G. Chai
Sensors and Actuators B 173, 772 (2012).

Electronic properties and charge transfer phenomena in Pt nanoparticles on γ-Al2O3: size, shape, support, and adsorbate effects
F. Behafarid, L. K. Ono, S. Mostafa, J. R. Croy, G. Shafai, S. Hong, T. S. Rahman, Simon R. Bare and B. Roldan Cuenya
Phys. Chem. Chem. Phys. 14, 11766 (2012).

In situ coarsening study of inverse micelle prepared Pt nanoparticles supported on γ-Al2O3: pretreatment and environmental effects
J. Matos, L.K. Ono, F. Behafarid, J.R. Croy, S. Mostafa, A. T. DeLaRiva, A.K. Datye, A.I. Frenkel, B. Roldan Cuenya
Phys. Chem. Chem. Phys. 14, 11457 (2012).

Nano Pinstripes: TiO2 Nanostripe Formation by Nanoparticle-Mediated Pinning of Step Edges
F. Behafarid, B. Roldan Cuenya
J. Phys. Chem. Lett. 3, 608 (2012).

Coarsening Phenomena of Metal Nanoparticles and the Influence of the Support Pre-treatment: Pt/TiO2(110)
F. Behafarid, B. Roldan Cuenya
Surf. Sci. 606, 908 (2012).

2011

Thermodynamic properties of Pt nanoparticles: size, shape, support, and adsorbate effects
B. Roldan Cuenya, M. Alcantara-Ortigoza, L.K. Ono, F. Behafarid, S. Mostafa, J.R. Croy, K. Paredis, G. Shafai, T.S. Rahman, L. Li, Z. Zhang, and J.C. Yang
Phys. Rev. B 84, 245438 (2011).

Nanoepitaxy using Micellar Nanoparticles
F. Behafarid, B. Roldan Cuenya
Nano Lett. 11, 5290 (2011).

Evolution of the Structure and Chemical State of Pd Nanoparticles during the in situ Catalytic Reduction of NO with H2
K. Paredis, L. K. Ono, F. Behafarid, Z. Zhang, J.C. Yang, A.I. Frenkel, B. Roldan Cuenya
J. Am. Chem. Soc. 133, 13455 (2011).

Oxygen Chemisorption, Formation, and Thermal Stability of Pt Oxides on Pt Nanoparticles supported onSiO2/Si(001): Size-effects
L. K. Ono, J. R. Croy, H. Heinrich, B. Roldan Cuenya
J. Phys. Chem. C 115, 16856 (2011).

Comparative study of hydrothermal treatment and thermal annealing effects on the properties of electrodeposited micro-columnar ZnO thin films
O. Lupan, T. Pauporté, I.M. Tiginyanu, V.V. Ursaki, V. Şontea, L.K. Ono, B. Roldan Cuenya, L. Chow
Thin Solid Films 519, 7738 (2011).

Structure, chemical composition, and reactivity correlations during the in situ oxidation of 2-propanol
K. Paredis, L. K. Ono, S. Mostafa, L. Li, Z. Zhang, J.C. Yang, L. Barrio, A.I. Frenkel, B. Roldan Cuenya
J. Am. Chem. Soc. 133, 6728 (2011).

2010

Formation and Thermal Stability of Platinum Oxides on Size-Selected Platinum Nanoparticles: Support Effects
L. K. Ono, B. Yuan, H. Heinrich, B. Roldan Cuenya
J. Phys. Chem. C 114, 22119 (2010).

Shape-dependent Catalytic Properties of Pt Nanoparticles
S. Mostafa, F. Behafarid, J. R. Croy, L. K. Ono, L. Li, J. C. Yang, A. I. Frenkel, B. Roldan Cuenya
J. Am. Chem. Soc. 132, 15714 (2010).

Anomalous lattice dynamics and thermal properties of supported, size-and shape selected Pt nanoparticles
B. Roldan Cuenya, A.I. Frenkel, S. Mostafa, F. Behafarid, J. R. Croy, L. K. Ono, Q. Wang
Phys. Rev. B 82, 155450 (2010).

Synthesis and characterization of Ag- or Sb-doped ZnO Nanorods by a facile hydrothermal route
O. Lupan, L. Chow, L. K. Ono, B. Roldan Cuenya, G. Chai, H. Khallaf, S. Park, A. Schulte
J. Phys. Chem. C 114, 12401 (2010).

Solving the structure of size-selected Pt nanocatalysts synthesized by inverse micelle encapsulation
B. Roldan Cuenya, J. R. Croy, S. Mostafa, F. Behafarid, L. Li, Z. Zhang, J. C. Yang, Q. Wang, A. I. Frenkel
J. Am. Chem. Soc. 132, 8747 (2010).

Synthesis and characterization of ZnO nanowires for nanosensor applications
O. Lupan, G.A. Emelchenko, V.V. Ursaki, G. Chai, A.N. Redkin, A.N. Gruzintsev, I.M. Tiginyanu, L. Chow, L.K. Ono, B. Roldan Cuenya, H. Heinrich, and E.E. Yakimov
Mater. Res. Bull. 45, 1026 (2010).

Synthesis and catalytic properties of metal nanoparticles: Size, shape, support, composition, and oxidation state effects
B. Roldan Cuenya
Thin Solid Films 518, 3127 (2010).

Effects of Annealing on Properties of ZnO Thin Films Prepared by Electrochemical Deposition in Chloride Medium
O. Lupan, T. Pauporte, L. Chow, B. Viana, F. Pelle, L.K. Ono, B. Roldan Cuenya, H. Heinrich
Appl. Surf. Sci. 256, 1895 (2010).

2009

Excitation wavelength-independent sensitized Er3+ concentration in as-deposited and low temperature annealed Si-rich SiO2 films
O. Savchyn, R.M. Todi, K.R. Coffey , L.K. Ono, B. Roldan Cuenya, and P. G. Kik
Appl. Phys. Lett. 95, 231109 (2009).

Structure and Phonon Density of States of Supported Size-Selected 57FeAu Nanoclusters: a Nuclear Resonant Inelastic X-ray Scattering Study
B. Roldan Cuenya, L.K. Ono, J.R. Croy, A. Naitabdi, H. Heinrich, J. Zhao, E.E. Alp, W. Sturhahn, W. Keune
Appl. Phys. Lett. 95, 143103 (2009).

Phonon density of states of self-assembled isolated Fe-rich Fe-Pt alloy nanoclusters
B. Roldan Cuenya, Jason R. Croy, L.K. Ono, A. Naitabdi, H. Heinrich, W. Keune, J. Zhao, W. Sturhahn, E.E. Alp, M. Hu
Phys. Rev. B 80, 125412 (2009).

Catalytic Decomposition of Alcohols over Size-Selected Pt Nanoparticles Supported on ZrO2: a Study of Activity, Selectivity and Stability
S. Mostafa, J. R. Croy, H. Heinrich, B. Roldan Cuenya
Appl. Catal. A 366, 353 (2009).

Size-selected Pt Nanoparticles Synthesized via Micelle Encapsulation: Effect of Pretreatment and Oxidation State on the Activity for Methanol Decomposition and Oxidation
J.R. Croy, S. Mostafa, H. Heinrich, B. Roldan Cuenya
Catal. Lett. 131, 21 (2009).

Enhanced Thermal Stability and Nanoparticle-mediated Surface Patterning: Pt/TiO2(110)
A. Naitabdi, F. Behafarid, B. Roldan Cuenya
Appl. Phys. Lett. 94, 083102 (2009).

Thermal Stability and Segregation Processes in Self-Assembled Size-Selected AuxFe1-x Nanoparticles deposited on TiO2(110): Composition Effects
A. Naitabdi, L. K. Ono, F. Behafarid, B. Roldan Cuenya
J. Phys. Chem. C 113, 1433 (2009).

Nanostructured zinc oxide films synthesized by successive chemical solution deposition for gas sensor applications
O. Lupan, L. Chow, S. Shishiyanu, E. Monaico, T. Shishiyanu, V. Sontea, B. Roldan Cuenya, A. Naitabdi, S. Park, A. Schulte
Mater. Research Bull. 44, 63 (2009).

2008

Size Effects on the Desorption of O2 from Au2O3/Au0 Nanoparticles Supported on SiO2: a TPD Study
L.K. Ono, B. Roldan Cuenya
J. Phys. Chem. C 112, 18543 (2008).

High-Energy Phonon Confinement in Nanoscale Metallic Multilayers
B. Roldan Cuenya, W. Keune, R. Peters, E. Schuster, B. Sahoo, U. von Hörsten, W. Sturhahn, J. Zhao, T.S. Toellner, E.E. Alp, and S.D. Bader
Phys. Rev. B 77, 165410 (2008).

Formation and Thermal Stability of Au2O3 on Size-Selected Gold Nanoparticles: Size and Support Effects
L. K. Ono, B. Roldan Cuenya
J. Phys. Chem. C 112, 4676 (2008).

Nanostructures: Sensor and catalytic properties
B. Roldan Cuenya, A. Kolmakov
in "Functional Nanostructures: Processing, Characterization, and Applications", ed. S. Seal, Chapter 6, p. 305 (Springer Science, New York) (2008).

Bimetallic Pt/Metal catalysts for the decomposition of methanol: Effect of secondary metal on the oxidation state, activity, and selectivity of Pt
J. R Croy, S. Mostafa, L. Hickman, H. Heinrich, B. Roldan Cuenya
Appl. Catal. A 250, 207 (2008).

2007

Nanofabrication and Characterization of ZnO Nanorod Arrays and Branched Microrods by Aqueous Solution Route and Rapid Thermal Processing
O. Lupan, L. Chow, G. Chai, B. Roldan Cuenya, A. Naitabdi, A. Schulte, H. Heinrich
Materials Science and Engineering B 145, 57 (2007).

Formation, Thermal Stability and Surface Composition of Size-Selected AuFe Nanoparticles
A. Naitabdi, B. Roldan Cuenya
Appl. Phys. Lett. 91, 113110 (2007).

Support Dependence of MeOH Decomposition over Size-Selected Pt Nanoparticles
J. R. Croy, S. Mostafa, J. Liu, Yongho Sohn, H. Heinrich, B. Roldan Cuenya
Catal. Lett. 119, 209 (2007).

Epitaxial growth, magnetic properties and lattice dynamics of Fe nanoclusters on GaAs(001)
B. Roldan Cuenya, A. Naitabdi, E. Schuster, R. Peters, M. Doi, W. Keune
Phys. Rev. B 76, 094403 (2007).

Size dependent study of MeOH decomposition over size-selected Pt nanoparticles synthesized via micelle encapsulation
J. R. Croy, S. Mostafa, Jing Liu, Yong-ho Sohn, B. Roldan Cuenya
Catal. Lett. 118, 1 (2007).

Effect of interparticle interaction on the low temperature oxidation of CO over size-selected Au nanocatalysts supported on ultrathin TiC films
L. K. Ono, B. Roldan Cuenya
Catal. Lett. 113, 86 (2007).

Atomic Vibrations in Iron Nanoclusters: Nuclear Resonant Inelastic X-ray Scattering and Molecular Dynamics Simulations
B. Roldan Cuenya, A. Naitabdi, J. Croy, W. Sturhahn, J.Y. Zhao, E.E. Alp, R. Meyer, D. Sudfeld, E. Schuster, W. Keune
Phys. Rev. B 76, 195422 (2007).

2006

Local investigation of the electronic properties of size-selected Au nanoparticles by scanning tunneling spectroscopy
A. Naitabdi, L. K. Ono, B. Roldan Cuenya
Appl. Phys. Lett. 89, 043101 (2006).

Chalcogenide waveguide structures as substrates and guiding layers for evanescent wave Raman spectroscopy of bacteriorhodopsin
A. Pope, A. Schulte, Y. Guo, L. K. Ono, B. Roldan Cuenya, C. Lopez, K. Richardson, K. Kitanovski, T. Winningham
Vibrational Spectroscopy 42, 249 (2006).

Thermal stability, atomic vibrational dynamics and superheating of confined interfacial Sn layers in Sn/Si multilayers
B. Roldan Cuenya, W. Keune, W.A. Adeagbo and P. Entel
Phys. Rev. B 73, 045311 (2006).

In-situ gas-phase catalytic properties of TiC-supported size-selected gold nanoparticles synthesized by diblock copolymer encapsulation
L. K. Ono, D. Sudfeld, B. Roldan Cuenya
Surf. Sci. 600, 5041 (2006).

2005

Enhanced hyperfine magnetic fields for face-centered tetragonal Fe(110) ultrathin films on vicinal Pd(110)
B. Roldan Cuenya, W. Keune, Dongqi Li, and S. D. Bader
Phys. Rev. B 71, 064409 (2005).

2004

A MIS device structure for detection of chemically induced charge carriers
X. Liu, B. Roldan Cuenya, and E.W. McFarland
Sensors and Actuators B 99, 556 (2004).

Sensors based on Chemicurrents
B. Roldan Cuenya, and E.W. McFarland
Dekker Encyclopedia of Nanoscience and Nanotechnology p.3527 (2004).

Chemically induced charge carrier production and transport in Pd/SiO2 /n-Si(111) metal-oxide-semiconductor Schottky diodes
B. Roldan Cuenya, Hermann Nienhaus, and Eric W. McFarland
Phys. Rev. B 70, 115322 (2004).

2003

Magnetism and interface properties of epitaxial Fe films on high-mobility GaAs/Al0.35Ga0.65As(001) two-dimensional electron gas heterostructures
B. Roldan Cuenya, M. Doi, W. Keune, S. Hoch, D. Reuter, A. Wieck, T. Schmitte, and H. Zabel
Appl. Phys. Lett. 82, 1072 (2003).

Catalytic Activity of Supported Au Nanoparticles Deposited from Block Copolymer Micelles
Thomas F. Jaramillo, Sung-Hyeon Baeck, Beatriz Roldan Cuenya, and Eric W. McFarland
J. Am. Chem. Soc. Comm. 125, 7148 (2003).

Size- and Support-Dependent Electronic and Catalytic Properties of Au0/Au3+ Nanoparticles Synthesized from Block Copolymer Micelles
B. Roldan Cuenya, Sung-Hyeon Baeck, Thomas F. Jaramillo, and Eric W. McFarland
J. Am. Chem. Soc. 125, 12928 (2003).

2002

Magnetic and structural properties of epitaxial Fe thin films on GaAs(001) and interfaces
M. Doi, B. Roldan Cuenya, W. Keune, T. Schmitte, A. Nefedov, H. Zabel, D. Spoddig, R. Meckenstock, and J. Pelzl
J. Magn. Magn. Mater. 240, 407 (2002).

Epitaxial growth and interfacial structure of Sn on Si(111)-(7x7)
B. Roldan Cuenya, M. Doi, and W. Keune
Surf. Sci. 506, 33 (2002).

2001

Observation of the fcc-to-bcc Bain Transformation in epitaxial Fe ultrathin films on Cu3Au(001)
B. Roldan Cuenya, M. Doi, S. Löbus, R. Courths, and W. Keune
Surf. Sci. 493, 338 (2001).

Structure and vibrational dynamics of interfacial Sn layers in Sn/Si multilayers
B. Roldan Cuenya, W. Keune, W. Sturhahn, T. S. Toellner, and M. Y. Hu
Phys. Rev. B 64, 235321 (2001).

Magnetism of step-decorated Fe on Pd(110)
Dongqi Li, B. Roldan Cuenya, J. Pearson, and S. D. Bader
Phys. Rev. B 64, 144410 (2001).

Growth and magnetic properties of ultrathin Fe on Pd(110)
B. Roldan Cuenya, J. Pearson, Chengtao Yu, Dongqi Li, and S. D. Bader
J. Vac. Sci. Technol. A 19, 1182 (2001).

2000

Magnetism and structure of epitaxial face-centered tetragonal Fe thin films
B. Roldan Cuenya, M. Doi, T. Ruckert, W. Keune and T. Steffel, Frontiers in Magnetism
J. Phys. Soc. Japan 79, Suppl. A, 125 (2000).

Reflection High-Energy Electron Diffraction and 119Sn Mössbauer investigations of epitaxial alpha-Sn Films
B. Roldan Cuenya, M. Doi, O. Marks, W. Keune and K. Mibu
in Structure and Dynamics of Heterogeneous Systems, eds. P. Entel and D.E. Wolf, World Scientific, Singapore, 251 (2000).

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