Ultrafine Ag Nanoparticles as Active Catalyst for Electrocatalytic Hydrogen Production

被引：31

作者：

Kang, Wen-Jing ^{[1
]}

Cheng, Chuan-Qi ^{[1
]}

Li, Zhe ^{[1
]}

Feng, Yi ^{[1
]}

Shen, Gu-Rong ^{[1
]}

Du, Xi-Wen ^{[1
]}

机构：

[1] Tianjin Univ, Inst New Energy Mat, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China

来源：

CHEMCATCHEM | 2019年 / 11卷 / 24期

关键词：

hydrogen evolution reaction; electrocatalysts; laser synthesis; coordination number; energy barrier; TOTAL-ENERGY CALCULATIONS; SIZE-DEPENDENCE; PARTICLE-SIZE; SILVER NANOCLUSTERS; OXYGEN REDUCTION; EVOLUTION; GOLD; CO2; NANOMATERIALS; FUNDAMENTALS;

D O I：

10.1002/cctc.201901364

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：

Ag nanoparticles with different sizes were produced by laser ablation in liquid (PLAL) through tuning laser energy. As the catalyst for hydrogen evolution reaction (HER) in acidic medium, Ag nanoparticles show strong size-dependent activity, and the smallest Ag nanoparticles with average size of 3 nm display a low overpotential of 96 mV at 10 mA cm(-2) and Tafel slope of 76.10 mV dec(-1), being superior to Ag foil and commercial Ag powder. The excellent performance is attributed to the large exposed surface, low coordination number, moderate hydrogen adsorption energy, and low charge transfer resistance.

引用

页码：5976 / 5981

页数：6

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