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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：无
其他任职：精细化工国家重点实验室副主任、大连理工大学-瑞典皇家工学院分子器件联合研究中心主任
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：应用化学. 精细化工
办公地点：大连理工大学西部校区化工实验楼E-223
联系方式：0411-84986493
电子邮箱：sunlc@dlut.edu.cn
A Cu-Based Nanoparticulate Film as Super-Active and Robust Catalyst Surpasses Pt for Electrochemical H-2 Production from Neutral and Weak Acidic Aqueous Solutions
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论文类型：期刊论文
发表时间：2016-04-20
发表刊物：ADVANCED ENERGY MATERIALS
收录刊物：EI、SCIE
卷号：6
期号：8
ISSN号：1614-6832
摘要：Electrocatalysts that are stable and highly active at low overpotential (eta) under mild conditions as well as cost-effective and scalable are eagerly desired for potential use in photo-and electro-driven hydrogen evolution devices. Here the fabrication and characterization of a super-active and robust Cu-CuxO-Pt nanoparticulate electrocatalyst is reported, which displays a small Tafel slope (44 mV dec(-1)) and a large exchange current density (1.601 mA cm(-2)) in neutral buffer solution. The catalytic current density of this catalyst film reaches 500 mA cm(-2) at eta = -390 +/- 12 mV and 20 mA cm(-2) at eta = -45 +/- 3 mV, which are significantly higher than the values displayed by Pt foil and Pt/C electrodes in neutral buffer solution and even comparable with the activity of Pt electrode in 0.5 M H2SO4 solution.