| Ru-Co-Ce复合氧化物阳极在碱性溶液中析氧性能研究 |
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| 引用本文： | 吴红军,阮琴,王宝辉,腾佳,付波. Ru-Co-Ce复合氧化物阳极在碱性溶液中析氧性能研究[J]. 功能材料, 2010, 41(3) |
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| 作者姓名： | 吴红军 阮琴 王宝辉 腾佳 付波 |
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| 作者单位： | 1. 大庆石油学院,化学化工学院,新能源化学与环境科学实验室,黑龙江,大庆,163318
2. 中国石油锦州石化公司,辽宁,锦州,121000 |
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| 基金项目： | 国家自然科学基金资助项目(50476091);;黑龙江省自然科学基金资助项目(B200401) |
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| 摘 要： | 采用溶胶-凝胶法制备RuO2-Co3O4-CeO2(Ru-Co-Ce)复合氧化物电极,利用SEM、XRD对电极表面形貌及物相结构进行了表征,并通过循环伏安及阳极极化曲线等手段对1.0mol/L KOH溶液中电极的析氧反应(OER)活性及其动力学进行了系统研究。结果表明,稀土CeO2可细化RuO2晶相,提高电极活性表面积,其中40%(摩尔分数)CeO2复合氧化物电极具有最大的伏安电荷86.23mC/cm2,在过电位η=0.60V(Ag/AgCl)时,其反应表观活化能可低至22.76kJ/mol,具有最佳的析氧活性。电极在低过电位及高过电位区域Tafel斜率分别约为40、120mV,电极对OH-的反应级数均为1.0。
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| 关 键 词： | RuO2 Co3O4 CeO2 阳极 析氧 |
Electrocatalytic activity of titanium based Ru-Co-Ce mixed oxide electrodes for oxygen evolution |
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| WU Hong-jun,RUAN Qin,WANG Bao-hui,TENG Jia,FU Bo. Electrocatalytic activity of titanium based Ru-Co-Ce mixed oxide electrodes for oxygen evolution[J]. Journal of Functional Materials, 2010, 41(3) |
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| Authors: | WU Hong-jun RUAN Qin WANG Bao-hui TENG Jia FU Bo |
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| Affiliation: | 1.Lab of New Energy Chemistry and Environmental Science;College of Chemistry & Chemical Engineering;Daqing Petroleum Institute;Daqing 163318;China;2.Petro China Jinzhou Petrochemical Company;Jinzhou 121000;China |
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| Abstract: | Ti-supported RuO_2-Co3O4-CeO2(Ru-Co-Ce)electrodes were prepared by sol-gel process.The surface morphology and phase structure of the coating anode were characterized by SEM and XRD.Electrocatalytic activity and oxygen evolution reaction(OER) kinetics on these electrodes in 1.0mol/L KOH solution were studied recording cyclic voltammetry and polarisation curve.The results showed that the appropriate content of CeO2 could reduced the grain size and increased active surface area.Mixed oxide electrodes with 40mo... |
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| Keywords: | RuO_2 Ce electrocatalytic activity oxygen evolution mixed oxide |
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