Electrochemical Preparation of Ru/Co Bi-layered Catalysts on Ti Substrates for the Oxygen Evolution Reaction

Kim, Jin Yeong; Park, Hyanjoo; Kim, Hoyoung; Hwang, Eunkyoung; Ahn, Sang Hyun; Kim, Soo-Kil

doi:10.1002/bkcs.10853

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Electrochemical Preparation of Ru/Co Bi-layered Catalysts on Ti Substrates for the Oxygen Evolution Reaction

Kim, Jin Yeong;
Park, Hyanjoo;
Kim, Hoyoung;
Hwang, Eunkyoung;
Ahn, Sang Hyun;
... Kim, Soo-Kil

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6

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7

초록

Ru/Co/Ti catalysts prepared by two-step electrodeposition and subsequent annealing were applied to the oxygen evolution reaction (OER) during acidic water electrolysis. The Co interlayers, which were electrodeposited for varying deposition times, strongly affected the morphology of the Ru/Co/Ti catalysts after annealing. Cracks and rolled-up parts appeared, and Co oxide nanowalls became attached to the Ru surface. During the initial stages of the OER, a synergetic effect was observed between Ru and the Co oxides. The Ru/Co/Ti catalyst demonstrated approximately three to four-fold higher activity than the Co interlayer-free Ru/Ti catalyst.

키워드

Water splitting; Oxygen evolution reaction; Electrodeposited catalysts; Annealing; PEM WATER ELECTROLYSIS; IRIDIUM OXIDE LOADINGS; COBALT OXIDE; ELECTRODES; ELECTROCATALYSTS; ANODES; CO3O4; CELLS; NANOCRYSTALS; PERFORMANCE

제목: Electrochemical Preparation of Ru/Co Bi-layered Catalysts on Ti Substrates for the Oxygen Evolution Reaction

저자: Kim, Jin Yeong; Park, Hyanjoo; Kim, Hoyoung; Hwang, Eunkyoung; Ahn, Sang Hyun; Kim, Soo-Kil

DOI: 10.1002/bkcs.10853

발행일: 2016-08

유형: Article

저널명: Bulletin of the Korean Chemical Society

권: 37

호: 8

페이지: 1270 ~ 1277

언어: ENG

출판사: WILEY-V C H VERLAG GMBH

발행국가: 대한민국

분량: 8 페이지

ISSN: E 1229-5949
P 0253-2964