Publications of Hamilton Varela

Journal Article (19)

2014
Journal Article
Bi, W., Y. He, M.F. Cabral, H. Varela, J. Yang, R. Jiang and Q. Gao: Oscillatory electro-oxidation of thiosulfate on gold. Electrochimica Acta 133, 308–315 (2014).
Journal Article
Delmonde, M.V.F., M.A. Nascimento, R. Nagao, D.A. Cantane, F.H.B. Lima and H. Varela: Production of Volatile Species during the Oscillatory Electro-oxidation of Small Organic Molecules. The Journal of Physical Chemistry C 118 (31), 17699–17709 (2014).
Journal Article
Machado, E.G. and H. Varela: Oscillatory Instabilities in the Electrooxidation of Borohydride on Platinum. Journal of the Brazilian Chemical Society 25 (3), 442–447 (2014).
Journal Article
Nascimento, M., R. Nagao, M. Eiswirth and H. Varela: Coupled slow and fast surface dynamics in an electrocatalytic oscillator: Model and simulations. The Journal of Chemical Physics 141 (23), 234701 (2014).
Journal Article
Nogueira, P.A., B.C. Batista, R.B. Faria and H. Varela: The effect of temperature on the dynamics of a homogeneous oscillatory system operated in batch and under flow. RSC Advances 4 (57), 30412–30421 (2014).
Journal Article
Perini, N., B.C. Batista, A.C.D. Angelo, I.R. Epstein and H. Varela: Long-Lasting Oscillations in the Electro-Oxidation of Formic Acid on PtSn Intermetallic Surfaces. ChemPhysChem 15 (9), 1753–1760 (2014).
Journal Article
Previdello, B.A.F., E.G. Machado and H. Varela: The effect of the alkali metal cation on the electrocatalytic oxidation of formate on platinum. RSC Advances 4 (29), 15271–15275 (2014).
2005
Journal Article
Bonnefont, A., H. Varela and K. Krischer: Stationary spatial patterns during bulk CO electrooxidation on platinum. Journal of Physical Chemistry B 109 (8), 3408–3415 (2005).
Journal Article
Plenge, F., H. Varela and K. Krischer: Pattern formation in stiff oscillatory media with nonlocal coupling: A numerical study of the hydrogen oxidation reaction on Pt electrodes in the presence of poisons. Physical Review E 72 (6), 066211 (2005).
Journal Article
Varela, H., C. Beta, A. Bonnefont and K. Krischer: A hierarchy of global coupling induced cluster patterns during the oscillatory H2-electrooxidation reaction on a Pt ring-electrode. Physical Chemistry Chemical Physics 7 (12), 2429–2439 (2005).
Journal Article
Varela, H., C. Beta, A. Bonnefont and K. Krischer: Transitions to electrochemical turbulence. Physical Review Letters 94 (17), 174104–1-174104–4 (2005).
2003
Journal Article
Bonnefont, A., H. Varela and K. Krischer: Stationary small and large amplitude patterns during bulk CO electrooxidation on platinum. ChemPhysChem 4 (11), 1260–1263 (2003).
Journal Article
Krischer, K., H. Varela, A. Birzu, F. Plenge and A. Bonnefont: Stability of uniform electrode states in the presence of ohmic drop compensation. Electrochimica Acta 49 (1), 103–115 (2003).
Journal Article
Plenge, F., H. Varela, M. Lübke and K. Krischer: Quantitative modeling of the oscillatory electrooxidation of hydrogen on Pt in the presence of poisons. Zeitschrift für Physikalische Chemie 217 (4), 365–381 (2003).
Journal Article
Varela, H., A. Bonnefont and K. Krischer: Trapping electrochemical oscillations between self-organized potential walls. ChemPhysChem 4 (12), 1348–1351 (2003).
2002
Journal Article
Varela, H., R.L. Bruno and R.M. Torresi: Ionic transport in conducting polymers/nickel tetrasulfonated phthalocyanine modified electrodes. Polymer 44 (18), 5369–5379 (2002).
Journal Article
Varela, H. and K. Krischer: Deciphering the origin of high-order periodic and aperiodic cyclic voltammetric responses during oxidation processes on platinum. Journal of Physical Chemistry B 106 (47), 12258–12266 (2002).
2001
Journal Article
Grauel, P., H. Varela and K. Krischer: Spatial bifurcations of fixed points and limit cycles during the electrochemical oxidation of H2 on Pt ring-electrodes. Faraday Discussions 120, 165–178 (2001).
Journal Article
Varela, H. and K. Krischer: Nonlinear phenomena during electrochemical oxidation of hydrogen on platinum electrodes. Catalysis Today 70 (4), 411–425 (2001).

Book Chapter (1)

2003
Book Chapter
Krischer, K. and H. Varela: Oscillations and other dynamic instabilities. In: Handbook of Fuel Cells – Fundamentals, Technology, Applications. (Eds.): W. Vielstich, A. Lamm, and H.A. Gasteiger. John Wiley & Sons, Ltd., Chichester, 679–701 (2003).
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