作者:吴红军;阮琴;王宝辉;腾佳;付波; 时间:2009-01-01 点击数:
吴红军;阮琴;王宝辉;腾佳;付波;
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
2:中国石油锦州石化公司
摘要(Abstract):
为制备高性能析氧电极,采用热分解法在400℃温度下制备Ti/RuO2(x)-Co3O4(1-x)(0≤x≤1,x为Ru的摩尔分数)复合氧化物电极,通过电极开路电压、循环伏安曲线及极化曲线等分析其在1.0mol/LKOH溶液中的析氧催化活性及析氧动力学.结果表明,摩尔分数为10%的RuO2使电极催化活性急剧变化,摩尔分数为50%的RuO2复合氧化物电极具有最大的伏安电荷(429.63mC.cm-2)、最高的表面粗糙度(1786),其析氧性能最佳;Ti/Co3O4在高、低过电位区域电极对OH-的反应级数分别近似为1.0和2.0,含RuO2电极反应级数均为1.0.
关键词(KeyWords):二氧化钌;四氧化三钴;电催化活性;析氧性能;复合氧化物;热分解法
Abstract:
Keywords:
基金项目(Foundation):国家自然科学基金项目(50476091);;
黑龙江省自然科学基金项目(B200401)
作者(Author):吴红军;阮琴;王宝辉;腾佳;付波;
Email:
参考文献(References):
[1]Tuner J A.Sustainable hydrogen production[J].Science,2004,305:972-974.
[2]申泮文.氢与氢能[M].北京:科学出版社,1988:24-30.
[3]胡新发,刘全兵,廖世军.钛基涂层不溶性阳极的开发与研究进展[J].材料保护,2008,41(8):41-45.
[4]Aromaa J,Forsen O.Evaluation of the electrochemical activity of a Ti-RuO2-Ti O2permanent anode[J].Electrochi mica Acta,2006(51):6104-6110.
[5]Wang X,Tang D,Zhou J G.Microstructure,Morphology and electrochemical property of RuO270SnO230mol%and RuO230SnO270mol%Coatings[J].J.Alloy Compound,2007,430:60-66.
[6]Josi mar R,Adalgisa R De Andrade.Characterization of RuO2-Ta2O5coatedtitaniumelectrode microstructure,morphology and elec-trochemical investigation[J].J.Electrochemical Society,2004,151(10):D106-D112.
[7]Da Silva L A,Boodts J F C,Faria L A De.‘In situ’and‘ex situ’Characterization of the surface properties of the RuO2(x)+Co3O4(1-x)System[J].Electrochi mica Acta,2000,45:2719-2727.
[8]Pourbaix M.Atlas of electrochemical equilibria in aqueous solutions[M].NACEInternational,Texas:1974.
[9]Da Silva L M,Boodts J F C,De Faria L A.Oxygen evolution at RuO2(x)-Co3O4(1-x)electrodes fromacid solution[J].Electro-chi mic Acta,2001,46:1369-1375.
[10]Terezo AJ,Pereira E C.Preparation and characterization of Ti/RuO2-Nb2O5electrodes obtained by polymeric precursor method[J].Electrochi m Acta.1999,44:4507-4513.
[11]Ouattara L,Diaco T,Duo I,et al.Di mensionally stable anode-type anode based on conductiveβ-Silicon substrate[J].J.Electro-chemical Society,2003,150(2):D41-D45.
[12]童宏扬,王雅琼,许文林.Ti/Ti O2膜电极在H2SO4和NaOH溶液中的电化学活化表面积[J].稀有金属材料与工程,2005,34(7):1081-1084.
[13]Da Silva L M,De Faria L A,Boodst J F C.Determination of the morphologyfactor of oxidelayers[J].Electrorchi m Acta,2001,46:395-403.
[14]Zanta C L P S,Andrade A R de,Boodts J F C.Solvent and support electrolyte effects on the catalytic activity of Ti/RuO2and Ti/IrO2Electrodes:Oxidation of Isosafrole as a Probe Model[J].Electrochi m Acta,1999,44:3333-3340.
[15]Levine S,Smith A L.Theory of the differential capacity of the Oxide/Aqueous electrolyteinterface[J].Discuss Faraday Soc,1971,52:290-301.
[16]Nikolov I,Darkaoui R,Zhecheva E,et al.Electrocatalytic activity of spinel related cobalties MxCo3-xO4(M=Li,Ni,Cu)in the oxygen evolution reaction[J].J Electroanal Chem,1997,429(1/2):157-168.
[17]Damjanovic A,Dey A,Bockris J O’M.Kinetics of oxygen evolution and dissolution on platinumelectrodes[J].Electrochi m Acta.1966,11:791-814.
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