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Electrocatalysts: Surface Generation of a Cobalt‐Derived Water Oxidation Electrocatalyst Developed in a Neutral HCO 3 − /CO 2 System (Adv. Energy Mater. 16/2014)
Author(s) -
Joya Khurram Saleem,
Takanabe Kazuhiro,
de Groot Huub J. M.
Publication year - 2014
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201470086
Subject(s) - overpotential , electrocatalyst , cobalt , oxygen evolution , faraday efficiency , materials science , oxygen , inorganic chemistry , chemical engineering , electrochemistry , electrode , chemistry , metallurgy , organic chemistry , engineering
In article number 1400252 Khurram Saleem Joya and co‐workers report the development of an efficient water oxidation electrocatalyst from simple and easily accessible cobalt in a near‐neutral HCO 3 − /CO 2 system. With an oxygen onset of 1.29 V (NHE) and 2.0 mA cm −2 oxygen evolution current densities (at modest overpotential), this new material shows remarkable stability and efficiency, and a Faradaic efficiency approaching 98%.