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

Kim Jin Yeong | Zendy; Park Hyanjoo | Zendy; Kim Hoyoung | Zendy; Hwang Eunkyoung | Zendy; Ahn Sang Hyun | Zendy; Kim SooKil | Zendy

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

Author(s) -

Kim Jin Yeong,

Park Hyanjoo,

Kim Hoyoung,

Hwang Eunkyoung,

Ahn Sang Hyun,

Kim SooKil

Publication year - 2016

Publication title -

bulletin of the korean chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.237

H-Index - 59

ISSN - 1229-5949

DOI - 10.1002/bkcs.10853

Subject(s) - oxygen evolution , catalysis , electrochemistry , annealing (glass) , electrolysis , oxide , electrolysis of water , oxygen , materials science , chemical engineering , inorganic chemistry , chemistry , metallurgy , electrode , organic chemistry , electrolyte , engineering

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.

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