Publications of Hyosang Jeon
All genres
Journal Article (27)
2025
Journal Article
A. Yoon, L. Bai, F. Yang, F. Franco, C. Zhan, M. Rüscher, J. Timoshenko, , , H. Jeon, M.C.O. Monteiro, S.W. Chee and B. Roldan Cuenya: Revealing catalyst restructuring and composition during nitrate electroreduction through correlated operando microscopy and spectroscopy. Nature Materials, in press.
2024
Journal Article
A. Martini, J. Timoshenko, P. Grosse, C. Rettenmaier, D. Hursán, , H. Jeon, A. Bergmann and B. Roldan Cuenya: Adsorbate Configurations in Ni Single-Atom Catalysts during CO2 Electrocatalytic Reduction Unveiled by Operando XAS, XES, and Machine Learning. Physical Review Letters 133 (22), 228001 (2024).
Journal Article
A. Herzog, M. Rüscher, H. Jeon, J. Timoshenko, C. Rettenmaier, U. Hejral, E. Davis, F. Haase, D. Kordus, S. Kühl, W. Frandsen, A. Bergmann and B. Roldan Cuenya: Time-resolved operando insights into the tunable selectivity of Cu–Zn nanocubes during pulsed CO2 electroreduction. Energy & Environmental Science 17 (19), 7081–7096 (2024).
Journal Article
A. Herzog, M. Lopez-Luna, H. Jeon, C. Rettenmaier, P. Grosse, A. Bergmann and B. Roldan Cuenya: Operando Raman spectroscopy uncovers hydroxide and CO species enhance ethanol selectivity during pulsed CO2 electroreduction. Nature Communications 15, 3986 (2024).
Journal Article
L. Bai, F. Franco, J. Timoshenko, C. Rettenmaier, F. Scholten, H. Jeon, A. Yoon, M. Rüscher, A. Herzog, F. Haase, S. Kühl, S.W. Chee, A. Bergmann and B. Roldan Cuenya: Electrocatalytic Nitrate and Nitrite Reduction toward Ammonia using Cu2O Nanocubes: Active Species and Reaction Mechanisms. Journal of the American Chemical Society 146 (14), 9665–9678 (2024).
Journal Article
F. Haase, E. Ortega, , F. Schmidt, D. Cruz, F. Scholten, M. Rüscher, A. Martini, H. Jeon, A. Herzog, U. Hejral, E. Davis, J. Timoshenko, A. Knop-Gericke, T. Lunkenbein, , A. Bergmann and B. Roldan Cuenya: Role of Fe Decoration on the Oxygen Evolving State of Co3O4 Nanocatalysts. Energy & Environmental Science 17 (5), 2046–2058 (2024).
Journal Article
, C. Zhan, H. Jeon, W. Frandsen, B. Roldan Cuenya and C. Kley: Organic Thin Films Enable Retaining the Oxidation State of Copper Catalysts during CO2 Electroreduction. ACS Applied Materials and Interfaces 16 (5), 6562–6568 (2024).
Journal Article
D. Hursán, J. Timoshenko, E. Ortega, H. Jeon, M. Rüscher, A. Herzog, C. Rettenmaier, S.W. Chee, A. Martini, D. Koshy and B. Roldan Cuenya: Reversible Structural Evolution of Metal-Nitrogen-Doped Carbon Catalysts During CO2 Electroreduction: An Operando X-ray Absorption Spectroscopy Study. Advanced Materials 36 (4), 2307809 (2024).
Journal Article
C. Rettenmaier, A. Herzog, , M. Rüscher, H. Jeon, D. Kordus, M. Lopez-Luna, S. Kühl, U. Hejral, E. Davis, S.W. Chee, J. Timoshenko, , A. Bergmann and B. Roldan Cuenya: Operando insights into correlating CO coverage and Cu-Au alloying with the selectivity of Au NP-decorated Cu2O nanocubes during the electrocatalytic CO2 reduction. EES Catalysis 2 (1), 311–323 (2024).
2023
Journal Article
F. Yang, M. Lopez-Luna, F. Haase, D. Escalera Lopez, A. Yoon, M. Rüscher, C. Rettenmaier, H. Jeon, E. Ortega, J. Timoshenko, A. Bergmann, S.W. Chee and B. Roldan Cuenya: Spatially and Chemically Resolved Visualization of Fe Incorporation into NiO Octahedra during the Oxygen Evolution Reaction. Journal of the American Chemical Society 145 (39), 21465–21474 (2023).
Journal Article
J. Timoshenko, F. Haase, , M. Rüscher, H. Jeon, A. Herzog, U. Hejral, A. Bergmann, and B. Roldan Cuenya: Deciphering the Structural and Chemical Transformations of Oxide Catalysts during Oxygen Evolution Reaction Using Quick X-ray Absorption Spectroscopy and Machine Learning. Journal of the American Chemical Society 145 (7), 4065–4080 (2023).
2022
Journal Article
F. Haase, A. Bergmann, T. Jones, J. Timoshenko, A. Herzog, H. Jeon, C. Rettenmaier and B. Roldan Cuenya: Size effects and active state formation of cobalt oxide nanoparticles during the oxygen evolution reaction. Nature Energy 7 (8), 765–773 (2022).
Journal Article
F. Haase, , F. Schmidt, A. Herzog, H. Jeon, W. Frandsen, , , , J. Timoshenko, T. Lunkenbein, , A. Bergmann, R. Schlögl and B. Roldan Cuenya: Role of Nanoscale Inhomogeneities in Co2FeO4 Catalysts during the Oxygen Evolution Reaction. Journal of the American Chemical Society 144 (27), 12007–12019 (2022).
Journal Article
M. Rüscher, A. Herzog, J. Timoshenko, H. Jeon, W. Frandsen, S. Kühl and B. Roldan Cuenya: Tracking heterogeneous structural motifs and the redox behaviour of copper-zinc nanocatalysts for the electrocatalytic CO2 reduction using operando time resolved spectroscopy and machine learning. Catalysis Science & Technology 12 (9), 3028–3043 (2022).
Journal Article
J. Timoshenko, A. Bergmann, C. Rettenmaier, A. Herzog, R. Aran Ais, H. Jeon, F. Haase, U. Hejral, P. Grosse, S. Kühl, E. Davis, , and B. Roldan Cuenya: Steering the structure and selectivity of CO2 electroreduction catalysts by potential pulses. Nature Catalysis 5 (4), 259–267 (2022).
Journal Article
, , , J. Timoshenko, , , , , , , H. Jeon, F. Haase, , C. Rettenmaier, , B. Roldan Cuenya, and : Covalent Organic Framework (COF) derived Ni-N-C Catalysts for Electrochemical CO2 Reduction: Unraveling Fundamental Kinetic and Structural Parameters of the Active Sites. Angewandte Chemie International Edition 61 (15), e202114707 (2022).
2021
Journal Article
, , , F. Haase, , J. Timoshenko, C. Rettenmaier, H. Jeon, A. Bergmann, , B. Roldan Cuenya and : Influence of the cobalt content in cobalt iron oxides on the electrocatalytic OER activity. Journal of Materials Chemistry A 9 (45), 25381–25390 (2021).
Journal Article
H. Jeon, J. Timoshenko, C. Rettenmaier, A. Herzog, A. Yoon, S.W. Chee, S. Oener, U. Hejral, F. Haase and B. Roldan Cuenya: Selectivity control of Cu nanocrystals in a gas-fed flow cell through CO2 pulsed electroreduction. Journal of the American Chemical Society 143 (19), 7578–7587 (2021).
Journal Article
A. Herzog, A. Bergmann, H. Jeon, J. Timoshenko, S. Kühl, C. Rettenmaier, M. Lopez-Luna, F. Haase and B. Roldan Cuenya: Operando Investigation of Ag‐Decorated Cu2O Nanocube Catalysts with Enhanced CO2 Electroreduction toward Liquid Products. Angewandte Chemie International Edition 60 (13), 7426–7435 (2021).
Journal Article
R. Rizo, A. Bergmann, J. Timoshenko, F. Scholten, C. Rettenmaier, H. Jeon, , A. Yoon, , and B. Roldan Cuenya: Pt-Sn-Co nanocubes as highly active catalysts for ethanol electro-oxidation. Journal of Catalysis 393, 247–258 (2021).