| TiO2掺杂PbO2电极及其在电解法制臭氧中的应用研究 |
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| 引用本文： | 尤宏,齐维晓,王保军,杨敏军.TiO2掺杂PbO2电极及其在电解法制臭氧中的应用研究[J].材料科学与工艺,2008,16(6):781-784,789. |
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| 作者姓名： | 尤宏 齐维晓 王保军 杨敏军 |
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| 作者单位： | 哈尔滨工业大学市政环境工程学院;中国市政工程东北设计研究院; |
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| 基金项目： | 国家自然科学基金资助项目(50278022) |
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| 摘 要： | 为了提高电极对臭氧生成反应的电催化活性,采用纳米复合电镀技术制备了TiO2改性PbO2电极.分别采用X射线衍射和X射线荧光光谱分析了其晶体结构和组分含量。将该电极用于电解法制备臭氧,并考察了电流密度、电镀极间距、电镀液pH值以及TiO2颗粒粒径对电极性能的影响.实验结果表明,改性后的PbO2电极使臭氧生成反应的电流效率由11.9%提高到了12.9%.电镀电流密度和电镀极间距的提高有利于提高电极催化活性.TiO2的掺杂会降低PbO2电极的晶胞粒径,有利于提高电极的电催化活性.
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| 关 键 词： | 纳米复合电镀 β-PbO2 TiO2 电催化活性 |
Application of TiO2 modified PbO2 electrode to electrochemical ozone production |
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| YOU Hong,QI Wei-xiao,WANG Bao-jun,YANG Min-jun.Application of TiO2 modified PbO2 electrode to electrochemical ozone production[J].Materials Science and Technology,2008,16(6):781-784,789. |
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| Authors: | YOU Hong QI Wei-xiao WANG Bao-jun YANG Min-jun |
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| Affiliation: | 1.School of Municipal and Environmental Engineering;Harbin Institute of Technology;Harbin 150090;China;2.China Northeast Municipal Engineering Design and Research Institute;Changchun 130021;China |
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| Abstract: | In order to improve the electrocatalytic properties of electrodes in electrochemical ozone production,PbO_2-matrix composites containing nano-grade TiO_2 as the dispersed phase were obtained on Ti substrate.The crystal structure and component content of the modified PbO_2 electrodes were analyzed by XRD and XRF techniques and were applied to the electrochemical ozone production.In addition,the effects of different parameters such as current density,depth between electrodes,pH values of electroplating soluti... |
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| Keywords: | TiO2 |
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