Synthesis of carbon quantum dot-doped NiCoP and enhanced electrocatalytic hydrogen evolution ability and mechanism

被引：75

作者：

Bao, Ting ^{[1
,2
]}

Song, Limin ^{[1
,2
]}

Zhang, Shujuan ^{[3
]}

机构：

[1] Tianjin Polytech Univ, Coll Environm & Chem Engn, Tianjin 300387, Peoples R China

[2] Tianjin Polytech Univ, State Key Lab Hollow Fiber Membrane Mat & Membran, Tianjin 300387, Peoples R China

[3] Tianjin Univ Sci & Technol, Coll Sci, Tianjin 300457, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2018年 / 351卷

关键词：

Electrocatalytic hydrogen evolution reaction; CQDs@NiCoP; Initial overpotential; Stability; Improved mechanism; NANOPARTICLES;

D O I：

10.1016/j.cej.2018.06.080

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Carbon quantum dots/bimetal phosphide (CQDs@NiCoP) catalysts for electrocatalytic hydrogen evolution reaction were synthesized via a facile annealing method. In a 0.5 M H2SO4 system, the 30 mg/L CQDs@NiCoP catalyst performed well with high electrocatalytic activity, lower initial overpotential than pure NiCoP (108 vs. 182 mV) and lower Tafel slope of 80 mV/decade. The enhancement of hydrogen evolution reaction activity was probably because the addition of CQDs enhanced the catalyst conductivity and significantly accelerated charge transfer.

引用

页码：189 / 194

页数：6

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