片状Co9S8/ZnS/C复合材料的制备及电催化产氧性能
Preparation and Electrocatalytic Performance of Flake Co9S8/ZnS/C Composites for Oxygen Evolution Reduction
作者单位E-mail
李志学 辽宁石油化工大学化学化工与环境学部, 抚顺 113000  
任铁强 辽宁石油化工大学化学化工与环境学部, 抚顺 113000  
耿忠兴 辽宁石油化工大学化学化工与环境学部, 抚顺 113000  
杨占旭 辽宁石油化工大学化学化工与环境学部, 抚顺 113000 zhanxuy@126.com 
摘要: 以六水合硝酸钴[Co(NO32·6H2O]为钴源、六水合硝酸锌[Zn(NO32·6H2O]为锌源、2,2'-硫代二乙酸(C4H6O4S)为硫源,采用溶剂热法制备出了片状的Co9S8/ZnS/C复合材料。采用X射线衍射(XRD)、扫描电镜(SEM)、透射电镜(TEM)和N2吸附/脱附测试等手段对于片状Co9S8/ZnS/C复合材料结构和形貌等进行表征,同时对片状Co9S8/ZnS/C复合材料进行了电催化产氧性能测试。结果表明:片状Co9S8/ZnS/C复合材料的起始过电位为390 mV,塔菲尔斜率为144 mV·dec-1,具有高的电催化产氧性能。
关键词: Co9S8/C  ZnS  过渡金属  电解水  析氧反应  溶剂热法
基金项目: 国家自然科学基金面上项目(No.21671092)、辽宁省"兴辽英才"科技创新领军人才项目(No.XLYC1802057)资助。
Abstract: The flake Co9S8/ZnS/C composites were prepared by solvothermal method, through using cobalt hexahydrate[Co(NO3)2·6H2O] as cobalt source, zinc hexahydrate nitrate[Zn(NO3)2·6H2O] as zinc source and 2,2'-thiodiacetic acid (C4H6O4S) as sulfur source. The flake Co9S8/ZnS/C composites structure and morphology were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), N2 adsorption-desorption test. Meanwhile, the results of electrocatalytic oxygen evolution reaction for the flake Co9S8/ZnS/C composite showed that it had high electrocatalytic oxygen production performance, with the initial overpotential of 390 mV and the Tafel slope of 144 mV·dec-1.
Keywords: Co9S8/C  ZnS  transition metal  water splitting  oxygen evolution reaction  solvothermal method
投稿时间:2019-07-05 修订日期:2019-10-29
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李志学,任铁强,耿忠兴,杨占旭.片状Co9S8/ZnS/C复合材料的制备及电催化产氧性能[J].无机化学学报,2019,35(12):2318-2322.
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