Cos、CoS2和CoS2/rGO催化剂的制备及催化氧还原性能研究  

Investigation on the Preparation and the Catalytic Performance for Oxygen Reduction Reaction of CoS,CoS2 and CoS2/rGO

作　　者：陈海天 朱峰云 孙云峰 康艳 姚硕 王纲 黄太仲[3] Chen Haitian;Zhu Fengyun;Sun Yunfeng;Kang Yan;Yao shuo;Wang Gang;Huang Taizhong(Shandong Lutai Chemical Co.,Ltd.,Yutai 272350,China;Shandong Lutai Holding Group Graphene Polymer Composites R&D Center,Jining 272100,China;University of Jinan,School of Chemistry and Chemical Engineering,Jinan 250022,China)

机构地区：[1]山东鲁泰化学有限公司,山东鱼台272350 [2]山东鲁泰控股集团有限公司石墨烯高分子复合材料研发中心,山东济宁2721005 [3]济南大学化学化工学院,山东济南250022

出　　处：《山东化工》2020年第22期1-5,8,共6页Shandong Chemical Industry

基　　金：2018年山东省科技厅山东省自然科学基金“氯乙烯合成非汞催化剂的制备与开发”(项目编号:ZR2018BB020)“过渡金属化合物MX(X=C,N,S)的结构构建与催化氧还原性能研究”(项目编号:ZR2018MB036)。

摘　　要：针对燃料电池等新能源发展对高性能、低成本氧还原催化剂的需求,本文主要研究了硫-钴二元氧还原催化剂的结构与催化氧还原性能的关系,结果表明硫化钴(CoS)和二硫化钴(CoS2)分别形成了片状和立方结构,还原氧化石墨烯(rGO)负载CoS2降低了其颗粒尺寸。电化学测试表明,CoS、CoS2以及CoS2/rGO催化剂都具有一定的催化氧还原性能,其中CoS2/rGO的催化性能最佳,其催化氧还原主要通过四电子反应路径,CoS2/rGO具有良好的应用前景。To meet the demand of fuel cells and other novel energy for high performance,low cost catalysts,this paper reported the structure and catalytic performance for oxygen reduction reaction(ORR)of cobalt sulfides based catalysts.Results showed that cobalt sulfide(CoS),cobalt disulfide(CoS2)formed the plate and cubic structure,separately.The reduced graphene oxide(rGO)support decreased the size of cubic CoS2.Electrochemical tests revealed that CoS,CoS2 and CoS2/rGOhad the catalytic performance for ORR.CoS2/rGO showed the highest catalytic performance for ORR.The ORR major happened through 4-electron pathway.The CoS2/rGO showed great promise for practical application.

关 键 词：氧还原 循环伏安 旋转圆盘电极 电子转移数 

分 类 号：TQ426[化学工程]