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Disclosing the High Activity of Ceramic Metallics in the Oxygen Evolution Reaction: Nickel Materials as a Case Study
Author(s) -
Ledendecker Marc,
Yang Xiaofei,
Antonietti Markus,
Shalom Menny
Publication year - 2016
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201601128
Subject(s) - oxygen evolution , electrocatalyst , nickel , ceramic , hydroxide , materials science , catalysis , nitride , chemical engineering , oxygen , inorganic chemistry , chemistry , nanotechnology , metallurgy , layer (electronics) , electrode , electrochemistry , organic chemistry , engineering
Here, we elucidate the activity origin of ceramic nickel electrocatalysts in the oxygen evolution reaction (OER), ranging from nitrides, sulfides, and phosphides, as a case study that may be projected on almost any ceramic metallic. Our results show that regardless of the starting material, the formation of an active (oxy)hydroxide layer, acting as the real electrocatalyst during the OER, is unavoidable. Nevertheless, the in situ transformation into highly active (oxy)hydroxides leads to the formation of active catalysts for various applications.