Hydrogen evolution on Au(111) catalyzed by rhodium nanoislands
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Pronounced catalysis of hydrogen evolution reaction (HER) by rhodium nanoislands spontaneously deposited on Au(111) has been observed. Different Rh/Au(111) nanostructures were characterized ex situ by both height and phase imaging AFM. The most pronounced catalytic activity for HER in 0.5 M H2SO4 was obtained for 50% Rh coverage. This is ascribed to the suitable size of Rh nanoislands and to the electronic modification of Rh deposit by Au(111) substrate. (C) 2012 Elsevier B.V. All rights reserved.
Кључне речи:Au(111) / Rhodium / Spontaneous deposition / AFM / Hydrogen evolution
Извор:Electrochemistry Communications, 2013, 28, 37-39
ISSN: 1388-2481 (print)