| Zn掺杂Co9S8纳米材料的制备及其在超级电容器和电催化析氢中的应用 | |
| Zn-Doped Co9S8 Nanomaterials: Preparation and Application for Supercapacitor and Hydrogen Evolution Reaction of Electrocatalysis | |
| 摘要: 采用原位溶剂热生长法设计合成了锌掺杂Co9S8纳米颗粒。各种表征技术和性能测试结果表明：锌掺杂Co9S8纳米颗粒的孔尺寸为18 nm，比表面积为23 m2·g-1；同时微量的锌掺杂显著增强了Co9S8的电催化析氢（HER）活性及电容器性能。在HER性能测试中，当电流密度为10 mA·cm-2时电位为-361 mV，电流密度最高可达38.26 mA·cm-2，且具有优异的循环稳定性。同时在电容器性能测试中具有较高的比电容，当电流密度为1 A·g-1时，质量比电容和面积比电容分别为235.48 F·g-1和812.4 mF·cm-2。 | |
| 关键词: 掺杂 Co9S8 纳米颗粒 析氢性能 超级电容器 能源转化 | |
| 基金项目: 国家自然科学基金项目（No.21865027）、北京化工大学有机无机复合材料国家重点实验室开放课题（No.oic-201801008）、河南省自然科学基金（No.162300410196）和洛阳理工学院高层次人才启动基金项目（No.21010621）资助。 | |
| Abstract: Herein, Zn-doped Co9S8 nanoparticles were synthesized via an in situ solvothermal growth method. These particles have a pore size of 18 nm and specific surface area of 23 m2·g-1. A series of performance tests showed that microscale Zn doping significantly improved the catalytic activity and capacitor performance of Co9S8. In HER performance tests, Zn-doped Co9S8 exhibited a lower potential of -361 mV at the current density of 10 mA·cm-2 and the highest current density up to 38.26 mA·cm-2, excellent cycling stability as well. In capacitor performance tests, Zndoped Co9S8 showed pretty high specific capacitance with mass and area specific capacitances of 235.48 F·g-1 and 812.4 mF·cm-2 respectively at a current density of 1 A·g-1. | |
| Keywords: doping Co9S8 nanoparticles HER performance supercapacitors energy conversion | |
| 投稿时间：2019-10-17 修订日期：2020-04-24 | |
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| 于海峰,王芳,冯婷,刘少兵,马福贵,杨孟新,梁鹏举.Zn掺杂Co9S8纳米材料的制备及其在超级电容器和电催化析氢中的应用[J].无机化学学报,2020,36(7):1318-1326. | |
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