二维多孔NiCoS催化剂的制备及其电解水析氧性能  

Preparation of 2D Porous NiCoS Catalysts and Its Oxygen Evolution Properties of Electrolytic Water

作　　者：秦聪丽 范爱鑫 Qin Congli;Fan Aixin(School of Chemistry&Material Science,Langfang Normal University,Langfang 065000,China)

机构地区：[1]廊坊师范学院化学与材料科学学院,河北廊坊065000

出　　处：《山东化工》2023年第21期54-56,59,共4页Shandong Chemical Industry

基　　金：河北省高等学校科学技术研究项目资助(批准号:QN2021124);廊坊市科学技术研究与发展计划自筹经费项目(批准号:2023011028,2023011031);廊坊师范学院教育教学改革项目(批准号:K2022-17)。

摘　　要：开发低成本、高活性和高稳定性的非贵金属催化剂对电解水析氧反应(OER)具有重要意义。以双金属NiCo-MOF为前驱体、硫代乙酰胺为硫原,制备出二维多孔双金属NiCoS纳米材料。采用SEM、TEM、XRD和XPS分析所合成材料的形貌、结构;利用电化学工作站研究其电解水析氧性能。结果表明调整水热硫化时间可以调控NiCoS纳米片的孔结构,其中二维多孔NiCoS-6催化剂在1.0 mol/L氢氧化钾电解质中的电解水析氧性能较好,电流密度为50 mA·cm^(-2)时,过电位仅为344 mV。The development of low-cost and high-performance of non precious metal electrocatalysts is of great significance for the electrolytic water oxygen production reaction(OER).2D holey NiCoS nanosheets was prepared using a bimetallic NiCo-MOF as precursor using hydrothermal vulcanization method.The morphology,structure and oxygen evolution performance of the synthesized materials were analyzed by SEM,TEM,XRD,XPS and electrochemical workstation.The NiCoS-6 catalyst exhibits excellent OER electrocatalytic performance in 1 mol/L KOH electrolyte,with the overpotential being only 344 mV at a current density of 50 mA·cm^(-2).

关 键 词：电解水 非贵金属催化剂 纳米材料 析氧 

分 类 号：TQ116.2[化学工程—无机化工]