Metal-organic frameworks-derived Ru-doped Co2P/N-doped carbon composite nanosheet arrays as bifunctional electrocatalysts for hydrogen evolution and urea oxidation

被引：140

作者：

Xu, You ^{[1
]}

Ren, Tianlun ^{[1
]}

Ren, Kaili ^{[1
]}

Yu, Shanshan ^{[1
]}

Liu, Mengying ^{[1
]}

Wang, Ziqiang ^{[1
]}

Li, Xiaonian ^{[1
]}

Wang, Liang ^{[1
]}

Wang, Hongjing ^{[1
]}

机构：

[1] Zhejiang Univ Technol, Coll Chem Engn, State Key Lab Breeding Base Green Chem Synth Tech, Hangzhou 310014, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2021年 / 408卷

基金：

中国国家自然科学基金;

关键词：

Co2P; Nitrogen-doped carbon; Bifunctional electrocatalysts; Hydrogen evolution reaction; Urea oxidation reaction; HIGH-PERFORMANCE; EFFICIENT ELECTROCATALYST; OXYGEN EVOLUTION; NI-FOAM; NANOPARTICLES; NANOARRAYS; ALKALINE; GRAPHENE;

D O I：

10.1016/j.cej.2020.127308

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Construction of hybrid water electrolysis systems by coupling the urea oxidation reaction (UOR) with the hydrogen evolution reaction (HER) can potentially increase the energy efficiency for H-2 production and remedy the environmental pollution of urea. In this work, we demonstrated the synthesis of a HER-UOR bifunctional self-supported composite electrode, composed of metal-organic framework-derived low-Ru-content-doped Co2P nanoparticles/N-doped carbon composite nanosheets supported on 3D Ni foam substrates (Ru-Co2P/N-C/NF). Benefiting from the synergism of compositional and structural merits, the resultant self-supported Ru-Co2P/N-C/NF composite exhibited excellent electrocatalytic performance for both HER and UOR. Remarkably, the two-electrode urea electrolysis system composed of the bifunctional Ru-Co2P/N-C/NF composite electrode as both the cathode and anode could achieve a current density of 100 mA cm(-2) with a voltage of 1.58 V in 1 M KOH containing 0.5 M urea.

引用

页数：8

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