Nickel iron alloy embedded, nitrogen doped porous carbon catalyst for efficient water electrolysis

被引：23

作者：

Chang, Jiuli ^{[1
]}

Wang, Wenyu ^{[1
]}

Wang, Lili ^{[1
]}

Wu, Dapeng ^{[2
]}

Xu, Fang ^{[1
]}

Jiang, Kai ^{[2
]}

Wang, Gongke ^{[3
]}

Gao, Zhiyong ^{[1
]}

机构：

[1] Henan Normal Univ, Collaborat Innovat Ctr Henan Prov Green Mfg Fine C, Sch Chem & Chem Engn, Key Lab Green Chem Media & React,Min Educ, Xinxiang 453007, Henan, Peoples R China

[2] Henan Normal Univ, Sch Environm, Key Lab Yellow River & Huai River Water Environm &, Henan Key Lab Environm Pollut Control,Min Educ,Int, Xinxiang 453007, Henan, Peoples R China

[3] Henan Normal Univ, Sch Mat Sci & Engn, Xinxiang 453007, Henan, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 2023年 / 650卷

关键词：

NiFe alloy; Metal -support electronic interaction; Charge redistribution; Oxygen evolution reaction; Hydrogen evolution reaction; METAL-SUPPORT INTERACTION; NIFE ALLOY; OXYGEN; NANOPARTICLES; ELECTROCATALYSTS; PERFORMANCE; NANOSHEETS; NANOTUBES; COMPOSITE; GRAPHENE;

D O I：

10.1016/j.apcata.2022.118984

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Metal-support electronic interaction is a feasible way to enhance the catalytic activity and bifunctionality for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), and further the easily water elec-trolysis for hydrogen production at low cost. Herein, NiFe alloy embedded in N doped carbon support hybrid (NiFe@NC) was prepared by pyrolysis of metal ions impregnated bamboo precursor. In this NiFe@NC hybrid, the surface (oxy)hydroxide layer of alloy led to high OER efficiency (overpotential of 270 mV at 10 mA cm-2), and the alloy-support interaction enabled high catalytic efficiency for HER (overpotential of 206 mV at-10 mA cm-2). Benefitted by the bifunctional features, the symmetric water electrolyzer based on two identical NiFe@NC electrodes demonstrated acceptable input voltage and high faradaic efficiencies (FEs) for water electrolysis. The current work offers a feasible showcase for fulfilling of bifunctional catalyses in water electrolysis via the metal -support electronic interaction.

引用

页数：12

共 69 条

[41] pH-dependent hydrogen evolution using spatially confined ruthenium on hollow N-doped carbon nanocages as a Mott-Schottky catalyst [J].