石墨烯
过电位
二硫化钼
催化作用
氧化物
兴奋剂
材料科学
电化学
无机化学
混合材料
钼
纳米技术
光电子学
化学工程
电极
化学
复合材料
冶金
物理化学
有机化学
工程类
作者
Liyuan Wu,Xinsheng Xü,Yuqi Zhao,Kaiyu Zhang,Yuan Sun,Tingting Wang,Yuanqi Wang,Zhong Wang,Youwei Du
标识
DOI:10.1016/j.apsusc.2017.06.223
摘要
The hybrid material of Mn-doped molybdenum disulfide/reduced graphene oxide (Mn-MoS2/rGO) is successfully fabricated through a one-pot hydrothermal method. The hybrid material, evaluated as electrochemical catalyst for the hydrogen evolution reaction (HER), exhibits improved catalytic activity and good stability for the HER in acidic medium with small overpotential (approximately 110 mV). Through analyses, it can be concluded that the improvement for electrochemical HER performance of the hybrid catalyst is ascribed not only to high conductivity mainly from reduced graphene oxide, but also to fundamental catalytic activity enhancement generated by Mn ions doping into the S-edge of MoS2 with a portion of Mo ions replacement. These results verify the facilitation effect of Mn-doping on HER activities, and the Mn-MoS2/rGO hybrid prepared in this work could be employed as a promising alternative to noble metal catalysts in HER.
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