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Hydrogen Electrocatalysis on Single Crystals and on Nanostructured Electrodes
Author(s) -
Santos Elizabeth,
Hindelang Peter,
Quaino Paola,
Schulz Eduardo N.,
Soldano Germán,
Schmickler Wolfgang
Publication year - 2011
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201100309
Subject(s) - electrocatalyst , monolayer , nanostructure , hydrogen , transition metal , electrode , adsorption , materials science , catalysis , nanotechnology , chemical physics , inorganic chemistry , chemistry , electrochemistry , organic chemistry
We investigate hydrogen evolution on plain and nanostructured electrodes with a theory developed by us. On electrodes involving transition metals the most strongly adsorbed hydrogen is often only a spectator, while the reaction proceeds via a weakly adsorbed species. For Pt(111) the isotherms for both species are calculated. We explain why a nanostructure consisting of a monolayer of Pd on Au(111) is a good catalysts, and predict that Rh/Au(111) should be even better. Our calculations for a fair number of metals are in good agreement with experiment.