Acid-engineered defective MoS2 as an efficient electrocatalyst for hydrogen evolution reaction
Acid-engineered defective MoS2 as an efficient electrocatalyst for hydrogen evolution reaction
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DOI：
10.1016/j.matlet.2018.07.108
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发表时间：
2018-11-01
影响因子：
3
通讯作者：
Huang, Qizhong
中科院分区：
文献类型：
--
作者：
Zhang, Wei;Xie, Zhiyong;Huang, Qizhong
在这里，我们报告了显着增强析氢反应（HER）催化剂的酸蚀刻二硫化钼（A-MoS 2）。对于HNO 3的刻蚀和氧化作用，通过简单控制处理时间，活性位和电输运得到显著改善。A-MoS 2表现出有前景的电催化性能，包括小得多的起始过电位（类似于80 mV），在10 mA/cm（2）下的210 mV的过电位，以及97 mV/dec的Tafel斜率（原始MoS 2 180 mV/dec）。MoS 2的HER性能的增强可能归因于边缘S原子的增加和O掺杂引起的电荷。(C)2018爱思唯尔B. V.保留所有权利。
Here we report a dramatically enhanced hydrogen evolution reaction (HER) catalyst by acid etched MoS2 (A-MoS2). For the etching and oxidation effects of HNO3, the active site and electrical transport are significantly improved by simply controlling of processing time. The A-MoS2 exhibits promising electrocatalytic performance, including much smaller onset overpotential (similar to 80 mV), an overpotential of 210 mV at 10 mA/cm(2), and a Tafel slope of 97 mV/dec (the pristine MoS2 180 mV/dec). The enhanced HER performance of MoS2 may be attributed to the increased edge S atoms and the charge induced by the O doping. (C) 2018 Elsevier B.V. All rights reserved.