纳米片状Fe-Ni_(3)S_(2)的制备及其析氧性能研究  

Preparation of Nanosheet-Like Fe-Ni_(3)S_(2) Catalyst and Electrocatalytic Activity for Oxygen Evolution Reaction

作　　者：李秋 吴方 葛金龙 秦英月 易孟 LI Qiu;WU Fang;GE Jinlong;QIN Yingyue;YI Meng(School of Material and Chemical Engineering,Bengbu University,Bengbu 233030,China;Anhui Provincial Engineering Laboratory of Silicon-Based Materials,Bengbu 233030,China)

机构地区：[1]蚌埠学院材料与化学工程学院,安徽蚌埠233030 [2]安徽省硅基新材料工程实验室,安徽蚌埠233030

出　　处：《长春师范大学学报》2024年第8期93-98,共6页Journal of Changchun Normal University

基　　金：蚌埠学院高水平科研培育项目“镍铁基MOFs的制备及其OER性能研究”(2021pyxm08);蚌埠学院高层次人才科研启动项目(BBXY2021KYQD04);蚌埠学院自然科学研究重点项目(2022ZR04zd)。

摘　　要：以泡沫镍为基底和镍源,利用一步水热硫化方法,制备出具有自支撑特点的铁掺杂的Ni_(3)S_(2)纳米片。利用XRD、SEM、Raman等测试手段对系列催化剂的结构、形貌进行表征分析,并测试其析氧活性。相比于单一的Ni_(3)S_(2),铁掺杂的Ni_(3)S_(2)具有优异的析氧活性。其中Fe-Ni_(3)S_(2)-1具有最佳的催化性能,达到10 mA·cm^(-2)和100 mA·cm^(-2)的电流密度,所需的过电势分别为231 mV和275 mV,Tafel斜率达到31.3 mV·dec^(-1),同时Fe-Ni_(3)S_(2)-1具有很好的稳定性。We reported the synthesis of Fe-doped Ni_(3)S_(2) nanosheets through hydrothermal method using NF as the substrate and Ni source.The structure and morphology of a series of catalysts were characterized with XRD,SEM and Raman,and the oxygen evolution activities were tested.Fe-doped Ni_(3)S_(2) exhibits a significantly-improved activities compared to Ni_(3)S_(2).Fe-Ni_(3)S_(2)-1 shows the best OER catalytic activity with low overpotential of 231 mV and 275 mV at 10 mA·cm^(-2)and 100 mA·cm^(-2)and Tafel slope of 31.3 mV·dec^(-1),and good stability.

关 键 词：析氧反应 Ni_(3)S_(2) 电解水 水热制备 铁掺杂 

分 类 号：TQ151.1[化学工程—电化学工业]