硫钼簇OER催化剂[(Mo_(2)O_(2)S_(2))(C_(4)N_(2)H_(6))_(4)(MoO_(4))]的合成及催化特性  

Synthesis and OER Catalytic Properties of a Molybdenum Sulfur Cluster Compound[(Mo_(2)O_(2)S_(2))(C_(4)N_(2)H_(6))_(4)(MoO_(4))]

作　　者：李婷婷[1] 陈宝宽 毕研峰 LI Tingting;CHEN Baokuan;BI Yanfeng(School of Chemistry and Materials Science,Liaoning Petrochemical University,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001

出　　处：《聊城大学学报（自然科学版）》2021年第6期57-63,共7页Journal of Liaocheng University:Natural Science Edition

基　　金：国家自然科学基金委员会,重大研究计划培育项目(91961110);辽宁石油化工大学科研启动基金国家自然(2019XJJL-019)资助。

摘　　要：析氧反应(OER)在可再生能源技术电解水中发挥着重要作用,但OER反应动力学缓慢,严重制约着其催化性能和实际应用。因此设计合成高效、耐用且廉价的OER电催化剂是解决这一问题的有效方法。硫钼簇分子催化剂在这一领域表现出良好的发展势头,但设计与合成该类分子基催化剂具有极大的挑战性。本文在溶剂热的条件下通过自组装的合成方式成功制备了一例有机基团官能化的硫钼簇化合物,其分子式为[(Mo_(2)O_(2)S_(2))(C_(4)N_(2)H_(6))_(4)(MoO_(4))](1)。通过单晶X-射线衍射、粉末XRD衍射、X-射线光电子能谱分析、红外光谱分析、元素分析以及热重分析对其进行了表征。电催化OER显示在10 mA·cm^(-2)的电流密度下的过电势为389 mV,Tafel斜率为71.8 mV·dec^(-1),并且在室温条件下具有良好的催化稳定性。Oxygen evolution reaction(OER)plays an important role in the electrolysis of water with renewable energy technology,but the slow kinetics of OER reaction seriously restricts its catalytic performance and practical application.Therefore,it is an effective way to design and synthesize an efficient,durable and inexpensive OER electrocatalyst for the problem.Molybdenum sulfur cluster-based molecular catalysts have shown a good momentum of development in this field.However,it is still highly challenging to design and synthesize such molecular catalysts.In this paper,a novel organic functionalized sulfur molybdenum cluster compound was successfully prepared by self-assembly under solvothermal conditions,and the m olecular formula was[(Mo_(2)O_(2)S_(2))(C_(4)N_(2)H_(6))_(4)(MoO_(4))](1).It was characterized by single crystal X-ray diffraction,powder XRD diffraction,X-ray photoelectron spectroscopy,infrared spectroscopy,elemental analysis and thermogravimetric analysis.The performance of compound 1 as an OER electrocatalyst showed that the overpotential was 389 mV at a current density of 10 mA·cm^(-2),the Tafel slope was 71.8 mV·dec^(-1),and it had good catalytic stability at room temperature.

关 键 词：硫钼簇化合物 自组装 催化剂 析氧反应 

分 类 号：O612[理学—无机化学]