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Front Cover: Grain Boundaries Boost Oxygen Evolution Reaction in NiFe Electrocatalysts (Small Methods 2/2021)
Author(s) -
Park Hoon Kee,
Ahn Hehsang,
Lee Tae Hyung,
Lee Jae Yoon,
Lee Mi Gyoung,
Lee Sol A.,
Yang Jin Wook,
Kim Sang Jun,
Ahn Sang Hyun,
Kim Soo Young,
Lee ChulHo,
Park Eun Soo,
Jang Ho Won
Publication year - 2021
Publication title -
small methods
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 4.66
H-Index - 46
ISSN - 2366-9608
DOI - 10.1002/smtd.202170003
Subject(s) - oxygen evolution , grain boundary , grain size , materials science , oxygen , thermodynamics , chemistry , metallurgy , physics , electrode , microstructure , electrochemistry , organic chemistry
In article number 2000755 by Chul‐Ho Lee, Eun Soo Park, and Ho Won Jang, in situ electrochemic al observations to reveal the strong dependence of oxygen evolution reaction on grain boundary density is reported for the first time. Thermodynamically favorable aspects of the grain boundary for oxygen evolution reaction (OER) compared to the grain interior is demonstrated by various analyses. Grain boundary can elevate OER performance probably by modifying the reaction kinetics of the rate‐determining step.