期刊
NANO RESEARCH
卷 8, 期 4, 页码 1108-1115出版社
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-014-0590-0
关键词
MoSe2; transition-metal chalcogenides; porous microspheres; monolayer flakes; electrocatalytic activity
类别
资金
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA 01030200]
- National Basic Research Program of China [2011CB965004]
- National Natural Science Foundation of China [21303249, 21301187]
- National Science Foundation of Jiangsu Province [BK2012007]
A facile colloidal route to synthesize MoSe2 porous microspheres with diameters of 400-600 nm made up of MoSe2 monolayer flakes (similar to 0.7 nm in thickness) is reported. The solvents trioctylamine (TOA) and oleylamine (OAM) are found to play important roles in the formation of MoSe2 microspheres, whereby TOA determines the three-dimensional (3D) microspherical morphology and OAM directs the formation of MoSe2 monolayer flakes. The robust 3D MoSe2 microspheres exhibit remarkable activity and durability for the electrocatalytic hydrogen evolution reaction (HER) in acid, maintaining a small onset overpotential of similar to 77 mV and keeping a small overpotential of 100 mV for a current density of 5 mA/cm(2) after 1,000 cycles. In addition, similar 3D WSe2 microspheres can also be prepared by using this method. We expect this facile colloidal route could further be expanded to synthesize other porous structures which will find applications in fields such as in energy storage, catalysis, and sensing.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据