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Enhancing the Alkaline Hydrogen Evolution Reaction Activity through the Bifunctionality of Ni(OH) 2 /Metal Catalysts
Author(s) -
Danilovic N.,
Subbaraman Ram,
Strmcnik D.,
Chang KeeChul,
Paulikas A. P.,
Stamenkovic V. R.,
Markovic Nenad M.
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201204842
Subject(s) - overpotential , catalysis , nickel , nanoclusters , inorganic chemistry , electrochemistry , metal , copper , hydrogen , oxygen evolution , chemistry , water splitting , materials science , electrode , metallurgy , organic chemistry , photocatalysis
Active in alkaline environment : The activity of nickel, silver, and copper catalysts for the electrochemical transformation of water to molecular hydrogen in alkaline solutions was enhanced by modification of the metal surfaces by Ni(OH) 2 (see picture; I =current density and η =overpotential). The hydrogen evolution reaction rate on a Ni electrode modified by Ni(OH) 2 nanoclusters is about four times higher than on a bare Ni surface.