Construction of seaurchin-like structured Ag2Se-Ag2S-CoCH/NF electrocatalyst with high catalytic activity and corrosion resistance for seawater electrolysis

Lijuan Yang,Chao Feng,Chengdong Guan,Lijun Zhu,Daohong Xia

Applied Surface Science（2023）

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摘要

•Construction of seaurchin-like heterostructured Ag2Se-Ag2S-CoCH/NF electrocatalyst by a new monometallic cation release method combined with hydrothermal reaction.•Proposing an anti-corrosion strategy with CoCH protective layer on superionic conductor for seawater electrolysis.•Revealing the co-modulation of active sites, HER/OER kinetics and corrosion resistance in Ag2Se-Ag2S by the incorporation of CoCH.•A comparable low overpotential demanded to drive 10 mA cm−2 towards HER/OER for alkaline water and seawater electrolysis.

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关键词

Hydrogen production,Seawater electrolysis,Monometallic cation release,Seaurchin-like heterostructure,Corrosion resistance

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