MoS2supported CoS2on carbon cloth as a high-performance electrode for hydrogen evolution reaction
MoS2supported CoS2on carbon cloth as a high-performance electrode for hydrogen evolution reaction
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MoS2负载CoS2碳布作为析氢反应的高性能电极
DOI：
10.1016/j.ijhydene.2019.04.195
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发表时间：
2019
影响因子：
7.2
通讯作者：
Wang Baoguo
中科院分区：
文献类型：
--
作者：
Wang Peican;Wan Lei;Lin Yuqun;Wang Baoguo
在这里，我们报告了一种通过两步法制备基于在高导电性 CoS2 装饰碳布（MoS2/CoS2/CC）上生长的 MoS2 的制氢电催化剂的策略。 MoS2/CoS2/CC电极夹层结构的合理设计对于MoS2在碳基底上均匀分散、调节MoS2的性能和提高长期耐久性具有重要意义。得益于具有高度暴露的边缘、快速电子传输和Mosingle bondSsingle bondCo的界面硫带来的额外活性位点的夹层结构，所得到的MoS2/CoS2/CC电极在酸性溶液中表现出优异的HER活性和优异的稳定性，包括在10和100 mA/cm2的电流密度下分别为118和159 mV的过电势，每十年37 mV的塔菲尔斜率和在酸溶液中优异的循环稳定性。酸溶液。高催化性能和简单的制备方法表明MoS2/CoS2/CC电极具有大规模实际应用的适用性。
Here we report a strategy to prepare electrocatalysts for hydrogen generation based on MoS2grown on highly conductive CoS2decorated carbon cloth (MoS2/CoS2/CC) through a two-step method. The rational design of sandwich structure of MoS2/CoS2/CC electrode was significant for homogenously dispersing MoS2on the carbon substrate, tuning the properties of the MoS2and improving long-term durability. Benefiting from the sandwich structure with highly exposed edges, fast electron transport and additional active sites brought by interfacial sulfur of Mosingle bondSsingle bondCo, the resulting MoS2/CoS2/CC electrode exhibited superior HER activity and excellent stability in acid solution including an overpotential of 118 and 159 mV at current density of 10 and 100 mA/cm2, respectively, a Tafel slope of 37 mV per decade and excellent cycling stability in acid solution. The high catalytic performance and simplicity of the preparation method suggest applicability of the MoS2/CoS2/CC electrode for large-scale practical applications.