Interface engineering of Fe-Sn-Co sulfide/oxyhydroxide heterostructural electrocatalyst for synergistic water splitting

被引：26

作者：

Chen, Siyu ^{[1
]}

Zhang, Ting ^{[1
]}

Han, Jingyi ^{[1
]}

Qi, Hui ^{[2
]}

Jiao, Shihui ^{[1
]}

Hou, Changmin ^{[3
]}

Guan, Jingqi ^{[1
]}

机构：

[1] Jilin Univ, Inst Phys Chem, Coll Chem, Changchun 130021, Peoples R China

[2] Second Hosp Jilin Univ, Changchun 130021, Peoples R China

[3] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China

来源：

NANO RESEARCH ENERGY | 2024年 / 3卷 / 02期

基金：

中国国家自然科学基金;

关键词：

oxygen evolution reaction; hydrogen evolution reaction; overall water splitting; sulfide; bifunctional electrocatalyst; NICKEL FOAM; EVOLUTION;

D O I：

10.26599/NRE.2023.9120106

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

To realize large-scale hydrogen production by electrolysis of water, it is essential to develop non-precious metal catalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). Here, we fabricate Sn-, Fe-, and Co-based sulfide/oxyhydroxide heterostructural catalyst on nickel foam (FeSnCo0.2SxOy/NF) by solvothermal method. The FeSnCo0.2SxOy/NF requires low overpotentials of 48 and 186 mV at 10 mA<middle dot>cm-2, respectively, for HER and OER. When it is assembled into an electrolytic cell as a bifunctional electrocatalyst, it only needs 1.54 V to reach 10 mA<middle dot>cm-2, far better than IrO2||Pt/C electrolyzer. The formation of sulfide/hydroxide heterostructural interfaces improves the electron transfer and reduces the reaction energy barrier, thus promoting the electrocatalytic processes.

引用

页数：8

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