【作者】 赵雪； 朱慧； 杨帆； 杨秀荣；

【Author】 Xue Zhao;Hui Zhu;Fan Yang;Xiurong Yang;State Key Laboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences;University of the Chinese Academy of Sciences;

【机构】 中科院长春应用化学研究所电分析国家重点实验室； 中国科学院大学；

【摘要】 纳米二硫化钼(MoS2)可以通过液相剥离的方法制备。例如,在DMF中超声处理体相MoS2,但是该方法需要使用有机溶剂。本文提出了一种简单的、对环境友好的纳米MoS2制备方法,并应用于电催化析氢。在溴化十六烷基三甲基铵的辅助下,对体相MoS2进行超声,得到超小的纳米MoS2。将制备的纳米材料自组装在金电极表面,以测试其对析氢反应的催化活性。从极化曲线中得到的塔菲尔斜率为79.9 mV/decade,起始电位为0.1V,展示出了良好的电催化性能。更多还原

【Abstract】 Molybdenum sulfide(MoS2) nanoparticles can be prepared by liquid-exfoliation methods.For example,MoS2 nanoparticles were fabricated by ultrasonication from bulk MoS2 in DMF,however,the organic solvent is employed.Our research has provided a simple and environmentally friendly method to synthesize MoS2 nanoparticles for electrocatalytic hydrogen evolution.Ultrasmall MoS2 nanoparticles were fabricated from bulk MoS2 by ultrasonication with the assistant of cetyltrimethylammonium bromide.The MoS2 was then assembled on an Au electrode to measure the catalytic activity for hydrogen evolution.Based on the polarization curve,the Tafel slope of 79.9 mV per decade was estimated and the onset potential was 0.1 V,revealing good catalytic performance.更多还原