Easy incorporation of single-walled carbon nanotubes into two-dimensional MoS2 for high-performance hydrogen evolution
Easy incorporation of single-walled carbon nanotubes into two-dimensional MoS2 for high-performance hydrogen evolution
复制标题
轻松将单壁碳纳米管掺入二维MoS2中以实现高性能析氢
DOI：
10.1088/0957-4484/25/46/465401
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发表时间：
2014-11-21
期刊：
影响因子：
3.5
通讯作者：
Xu, Mingsheng
中科院分区：
文献类型：
--
作者：
Cai, Yu;Yang, Xi;Xu, Mingsheng
The limited intrinsic conductivity of two-dimensional (2D) MoS2 nanosheets compromises its high electrocatalytic performance. In this work, we develop a facile method of simply dispersing MoS2 nanosheets into a water-isopropanol solution of high-conducting single-walled carbon nanotubes (SWCNTs) for preparation of MoS2/SWCNT composites. The SWCNTs in the hybrid system serve as effective electron transport channels among 2D MoS2 nanosheets and facilitate charge transfer at the catalyst-electrolyte interface. We investigated the influence of SWCNTs ratios on the catalytic activities and obtained a high-performance hybrid catalyst with a low Tafel slope of 40.82 mV/decade and prominent electrochemical durability. The demonstration of our hybrid electrocatalytic system, with its scalable capacity for facile preparation, provides a new pathway to enhance HER activity.
