摘要
NiS2和Ni2P由于其在析氢(HER)和析氧反应(OER)中表现出很好的催化性能而被广泛用于电解水反应催化剂。为了提高上述两种催化剂的催化性能,采用两步法合成了具有多孔结构的NiS2和Ni2P纳米片,研究了它们对析氧反应的电催化性能。同时,对两种催化剂的催化性能也进行了比较。结果表明:上述两种催化剂均具有较好的催化活性和催化稳定性。与NiS2相比,Ni2P表现出相对较小的塔菲尔斜率值(84mV/dec)、较高的催化性能和较好催化稳定性。
Nickel sulfide and nickel phosphide have been widely applied as catalysts for electrochemical water splitting owing to their high catalytic property for hydrogen evolution(HER)and oxygen evolution reaction(OER).In order to improve their catalytic activity,NiS2 and Ni2P nanosheets with porous structure were synthesized via a twostep method,and investigated the corresponding electrocatalytic properties towards OER.Meanwhile,the catalytic properties of the two catalysts were also compared.The results revealed that the two catalysts described above exhibit good activity and stability.Compared to the catalyst of NiS2,the Ni2P catalyst exhibited relatively smaller Tafel slope(84mV/dec),higher catalytic performance and better stability.
作者
高文君
高腾飞
王梦娇
张建波
郭桦
李会泉
Gao Wenjun;Gao Tengfei;Wang Mengjiao;Zhang Jianbo;Guo Hua;Li Huiquan(Guodian New Energy Technology Research Institute Co.,Ltd.,Beijing 102209;Beijing Key Laboratory of Power Generation System Functional Material,Beijing 102209;Key Laboratory of Green Process and Engineering,National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190)
出处
《化工新型材料》
CAS
CSCD
北大核心
2020年第2期89-92,98,共5页
New Chemical Materials
基金
国家重点研发计划(2018YFE0196000)
国家能源集团重点科技项目(GJNY-19-102、2017E1WP00200和2017B1BE00100)
北京市科技重大专项(Z171100002017021).
关键词
NiS2
NI2P
析氧
电催化
NiS2
Ni2P
oxygen evolution reaction
electrocatalysis
