当前位置:首页 > 科研成果 > 正文

戴志晖教授课题组在ADVANCED MATERIALS发表研究论文

发布时间:17-11-22 11:23:58 文章来源:化科院 浏览次数: [ 字号:


Self-Templated Fabrication of MoNi4/MoO3-X Nanorod Arrays with Dual Active Components for Highly Efficient Hydrogen Evolution
Chen, YY (Chen, Yu-Yun)[ 1,2,3 ] ; Zhang, Y (Zhang, Yun)[ 2,3,4 ]*; Zhang, X (Zhang, Xing)[ 2,3 ] ; Tang, T (Tang, Tang)[ 2,3 ] ; Luo, H (Luo, Hao)[ 2,3 ] ; Niu, S (Niu, Shuai)[ 2,3 ] ; Dai, ZH (Dai, Zhi-Hui)[ 1 ]*(戴志晖);Wan, LJ (Wan, Li-Jun)[ 2,3,5 ] ; Hu, JS (Hu, Jin-Song)[ 2,3,5 ]*

[ 1 ] Nanjing Normal Univ, Jiangsu Key Lab Biofunct Mat, Sch Chem & Mat Sci, Nanjing 210023, Jiangsu, Peoples R China
[ 2 ] Chinese Acad Sci, CAS Key Lab Mol Nanostruct & Nanotechnol, 2 North First St, Beijing 100190, Peoples R China
[ 3 ] Chinese Acad Sci, CAS Res Educ Ctr Excellence Mol Sci, Inst Chem, 2 North First St, Beijing 100190, Peoples R China
[ 4 ] Sichuan Normal Univ, Coll Chem & Mat Sci, Chengdu 610068, Sichuan, Peoples R China
[ 5 ] Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China

ADVANCED MATERIALS,201710,29(39)

A binder-free efficient MoNi4/MoO3-x nanorod array electrode with 3D open structure is developed by using Ni foam as both scaffold and Ni source to form NiMoO4 precursor, followed by subsequent annealing in a reduction atmosphere. It is discovered that the self-templated conversion of NiMoO4 into MoNi4 nanocrystals and MoO3-x as dual active components dramatically boosts the hydrogen evolution reaction (HER) performance. Benefiting from high intrinsic activity, high electrochemical surface area, 3D open network, and improved electron transport, the resulting MoNi4/MoO3-x electrode exhibits a remarkable HER activity with extremely low overpotentials of 17 mV at 10 mA cm(-2) and 114 mV at 500 mA cm(-2), as well as a superior durability in alkaline medium. The water-alkali electrolyzer using MoNi4/MoO3-x as cathode achieves stable overall water splitting with a small cell voltage of 1.6 V at 30 mA cm(-2). These findings may inspire the exploration of cost-effective and efficient electrodes by in situ integrating multiple highly active components on 3D platform with open conductive network for practical hydrogen production.


文章链接:
http://onlinelibrary.wiley.com/doi/10.1002/adma.201703311/abstract
 


发布:化科院  打印此稿 | 关闭窗口