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Electrocatalysts: In Operando Self‐Healing of Perovskite Electrocatalysts: A Case Study of SrCoO 3 for the Oxygen Evolution Reaction (Part. Part. Syst. Charact. 4/2017)
Author(s) -
Tahini Hassan A.,
Tan Xin,
Schwingenschlögl Udo,
Smith Sean C.
Publication year - 2017
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201770014
Subject(s) - oxygen evolution , electrocatalyst , electrochemistry , annealing (glass) , oxygen , adsorption , catalysis , chemistry , nanotechnology , materials science , chemical engineering , photochemistry , electrode , metallurgy , organic chemistry , engineering
In article 1600280 , Sean C. Smith and co‐workers report first‐principle simulations revealing an electrochemical annealing/self‐healing mechanism occurring at the surface of SrCoO 3 , a promising electrocatalyst for oxygen evolution reactions (OER). Vacancies that easily form on the surface are oxidatively quenched through formation of adsorbed atomic oxygen species just before the onset of OER, which heals the surface and restores the anticipated high activity of the pristine surface.