聚吡咯
过电位
塔菲尔方程
纳米纤维
材料科学
纳米技术
电化学
化学工程
催化作用
纳米结构
环境友好型
电极
纳米片
静电纺丝
碳纳米纤维
物理
化学
有机化学
工程类
生物
量子力学
生态学
作者
Dongxin Zhang,Zhong Zhang,Xijin Xu,Qin Zhang,Changxia Yuan
出处
期刊:Physics Letters
[Elsevier]
日期:2017-11-01
卷期号:381 (41): 3584-3588
被引量:14
标识
DOI:10.1016/j.physleta.2017.09.004
摘要
Hierarchical MoS2 nanosheets/polypyrrole nanofibers (MoS2 [email protected] NFs) core/shell nanostructures were successfully fabricated through a simple and environmentally friendly method by using PPy nanofibers as the core and MoS2 NSs as the shell. The as-fabricated three dimensional MoS2 [email protected] NFs proved to be the effective hydrogen evolution reaction (HER) catalyst, which only needed 60 and 196 mV overpotential to approach 10 and 100 mA cm−2, respectively. Furthermore, a small Tafel slope of 33 mV dec−1 and low onset overpotential of 20 mV were achieved, which were smaller than the previously reported values. The MoS2 [email protected] NFs catalyst may hold great potential for practical applications.
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