硒参杂镍基催化剂的制备及电解水性能研究  

Preparation of Selenium-doped Nickel-based Catalyst and the Properties for Water Electrolysis

作　　者：曹琨[1] 袁同康 刘廷 冯宇杰 Cao Kun;Yuan Tongkang;Liu Ting;Feng Yujie(College of Chemistry and Chemical Engineering,Neijiang Normal University,Sichuan,641100)

机构地区：[1]内江师范学院化学化工学院,四川641100

出　　处：《当代化工研究》2025年第5期181-183,共3页Modern Chemical Research

基　　金：大学生创新创业训练计划项目“过渡金属基催化剂的合成及其电解水制氢应用研究”(项目编号:X2023024);山东省腐蚀科学重点实验室开放课题“镁合金表面自愈合涂层的制备及耐蚀性能研究”(项目编号:KLCS0901)。

摘　　要：为了开发更高效和更稳定的过渡金属催化剂用于水的电解,通过两步水热法在泡沫镍表面制备由纳米球和纳米片组成的多孔阵列NiSe2@Fe-NiCo-LDH材料。通过SEM发现其具有粗糙的表面,增加与水的接触面积,加快电解速率。从EDS mapping图像看出,Ni、Co、Fe、Se等元素在材料上分布较为均匀。通过电化学测试,在10mA/cm2条件下,NiSe2@Fe-NiCo-LDH和Fe-NiCo-LDH对析氢反应(HER)和析氧反应(OER)的过电位。电化学测试结果表明,相比于铁钴镍基催化剂,在硒参杂后,析氢和析氧反应过电位分别下降56mV和15mV,能够明显提高催化剂的催化性能。In order to develop more efficient and stable transition metal catalysts for water electrolysis,a two-step hydrothermal method was used to prepare NiSe2@Fe-NiCo-LDH porous arrays material consisting of nanospheres and nanosheets.SEM were used,and found that it has a rough surface,which can increase the contact area with water and accelerate the rate of water electrolysis.In addition,as seen from the EDS map-ping images,Ni,Co,Fe and Se elements are relatively evenly distributed on the material.Through electrochemical tests,the overpotentials of NiSe2@Fe-NiCo-LDH and Fe-NiCo-LDH for the hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)were measured under the condi-tion of 10 mA/cm2.The results of electrochemical tests indicate that,compared with the iron-cobalt-nickel-based catalyst,after selenium doping,the overpotentials of HER and OER for overall water electrolysis decrease by 56 mV and 15 mV respectively,which can significantly improve the catalyt-ic performance of the catalyst.

关 键 词：NiSe2@Fe-NiCo-LDH 电解水 析氢反应 析氧反应 

分 类 号：TQ426[化学工程]