5 years ago

Brownmillerite-type Ca2FeCoO5 as a Practicable Oxygen Evolution Reaction Catalyst

Brownmillerite-type Ca2FeCoO5 as a Practicable Oxygen Evolution Reaction Catalyst
Yoshiharu Uchimoto, Masahiro Mori, Hiroyuki Noda, Tsutomu Ioroi, Hajime Arai, Hajime Tanida, Hiroki Habazaki, Zempachi Ogumi, Yukinori Koyama, Yoshitaka Aoki, Teruki Motohashi, Etsushi Tsuji, Naoko Fujiwara, Junji Niikura, Damian Kowalski
The Cover picture shows the oxygen evolution reaction (OER) on brownmillerite (BM)-type Ca2FeCoO5, which is categorized as an oxygen-deficiency-ordered perovskite-type oxide containing a layered arrangement of tetrahedral (Td) and octahedral (Oh) sites. Here, remarkable OER catalytic activity of this oxide is reported. Our study suggests that the combination of Td/Oh sites in the BM structure plays a crucial role and that this oxide is a promising OER catalyst that can be used in many energy conversion technologies such as metal–air secondary batteries and hydrogen production from electrochemical/photocatalytic water splitting. More details can be found in the Communication by Tsuji et al. (DOI: 10.1002/cssc.201700499).

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/cssc.201701191

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