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一种新型尖晶石异质结构的催化剂及析氧反应的研究

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为提高在碱性环境中的过渡金属的电催化性能并降低使用成本,合成一种新型尖晶石异质结构的催化剂,并研究R-CFO在1.0mol/LKOH溶液中的电催化活性及其催化机理.以硝酸钴、硝酸铁、三氯化钌为原料,制备出RuO2@CoFe2O4新型材料.通过XRD、TEM、XPS、电化学实验和理论计算等方法,研究R-CFO在1.0mol/L KOH溶液中的催化活性及其催化机理.电催化实验表明,合成的新型催化剂R-CFO在碱性环境下的电流密度为10 mA/cm2时的过电位和Tafel斜率仅仅需要215 mV和50.93 mV/dec,电流-时间变化曲线中表现出催化剂较为稳定,合成的R-CFO电催化剂表现出优异的催化性能.因此,本文提出了一种很有前途的方法,对电催化具有潜在应用价值.
Study on a new type of spinel heterostructure catalyst and oxygen evolution reaction
In order to improve the electrocatalytic performance of transition metals in alkaline environment and reduce the cost,a novel spinel heterostructure catalyst was synthesized,and the electrocatalytic activity and catalytic mechanism of R-CFO in 1.0 mol/L KOH solution were studied.Using cobalt nitrate,iron nitrate and ruthenium trichloride as raw materials,RuO2@CoFe2O4 new material was prepared.The catalytic activity and mechanism of R-CFO in 1.0 mol/L KOH solution were studied by XRD,TEM,XPS,electrochemical experiments and theoretical calculation.Electrocatalytic experiments show that the overpotential and Tafel slope of the synthesized new catalyst R-CFO only require 215 mV and 50.93 mV/dec when the current density is 10 mA/cm2 under alkaline environment.The current time curve shows that the catalyst is relatively stable.The synthesized R-CFO electrocatalyst showed excellent catalytic performance.Therefore,a promising method is proposed in this paper,which has potential application value for electrocatalysis.

spinelcatalysiselectrochemistryelectrophoretic depositiontheoretical calculation

张溪桓、王鹏杰、王明安、刘婉颖、王少一、林元华

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西南石油大学油气藏地质及开发工程国家重点实验室,四川成都 610500

重庆新泰机械有限公司,重庆 402160

尖晶石 催化 电化学 电泳沉积 理论计算

国家自然科学基金四川省自然科学基金

520742322022NSFSC0028

2024

电镀与精饰
天津市电镀工程学会

电镀与精饰

CSTPCD北大核心
影响因子:0.522
ISSN:1001-3849
年,卷(期):2024.46(9)