Synergistic coupling of heterogeneous VN/WN nanoparticles embedded in N-doped carbon matrix for efficient hydrogen evolution reaction

被引：33
|
作者：
He, Danyang [1 ]
Cao, Liyun [1 ]
Huang, Jianfeng [1 ]
Li, Shuainan [1 ]
Feng, Yongqiang [1 ]
Li, Guodong [2 ]
Wang, Fangmin [1 ]
Feng, Liangliang [1 ]
机构：
[1] Shaanxi Univ Sci & Technol, Shaanxi Key Lab Green Preparat & Functionalizat I, Key Lab Auxiliary Chem & Technol Chem Ind,Minist, Xian Key Lab Green Mfg Ceram Mat,Sch Mat Sci & En, Xian 710021, Shaanxi, Peoples R China
[2] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2022年 / 429卷
基金：
中国国家自然科学基金;
关键词：
Vanadium nitride; Tungsten nitride; Heterostructure; Synergetic effect; Hydrogen evolution reaction; ELECTROCATALYST; ARRAY;
D O I：
10.1016/j.cej.2021.131945
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Engineering efficient and durable electrocatalysts for water electrolysis is of vital importance for achieving the large-scale hydrogen production, but challenges remain. Herein, a novel nanocomposite composed of heterogeneous VN/WN nanoparticles embedded in nitrogen-doped carbon (VN/WN@NC) is successfully synthesized using one-step calcination protocol. Benefiting from the optimized electronic configuration, heterogeneous nanostructure and upgraded conductivity, VN/WN@NC exhibits the unexceptionable electrocatalytic hydrogen evolution reaction (HER) performance, requiring a quite low overpotential of 122 mV to deliver the current density of 10 mA cm-2 without iR-compensation, and maintaining continuous operation for over 100 h in 1.0 M KOH. Overall, this study might enlighten the rational design of high-performance nitride-based catalysts for widespread application in electrochemical HER domain
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页数：6
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