| CV和Tafel曲线对稀土掺杂Ti/SnO2-Sb电极电催化性能研究 |
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| 引用本文： | 冯玉杰,丁海洋,张文军.CV和Tafel曲线对稀土掺杂Ti/SnO2-Sb电极电催化性能研究[J].材料科学与工艺,2009,17(2):278-280,284. |
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| 作者姓名： | 冯玉杰 丁海洋 张文军 |
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| 作者单位： | 哈尔滨工业大学,环境科学与工程系,哈尔滨,150090
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| 基金项目： | 国家门然科学基金，黑龙江省杰出青年基金 |
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| 摘 要： | 采用热分解法制备了稀土Dy、Nd、Eu及Gd掺杂Ti/SnO2-Sb电极,以苯酚为目标有机物,研究了所制备电极降解有机物的性能.在500 mg/L苯酚溶液中进行了所制备电催化电极的循环伏安(CV)特性分析,研究发现4种稀土(Dy、Nd、Eu和Gd)掺杂电极中苯酚在Nd掺杂Ti/SnO2-Sb(Ti/SnO2-Sb-Nd)电极上的直接氧化的峰电流最高,为4.46 mA/cm2.在0.5 mol/L的H2SO4溶液中进行了Tafel曲线测试,4种稀土掺杂Ti/SnO2-Sb电极的析氧电位分别为2.293、2.313、2.277、2.263 V(vs.Ag/AgCl).结果表明,所制备的4种稀土掺杂电极降解苯酚的性能与采用CV和Tafel曲线方法分析的结果一致,可以采用电化学方法评价电极的电催化氧化性能.
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| 关 键 词： | 苯酚 SnO2电极 循环伏安 Tafel曲线 稀土 |
Research on electrocatalytic properties of rare earth doped Ti/SnO_2-Sb electrodes by CV and Tafel curves |
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| FENG Yu-Jie,DING Hai-Yang,ZHANG Wen-Jun.Research on electrocatalytic properties of rare earth doped Ti/SnO_2-Sb electrodes by CV and Tafel curves[J].Materials Science and Technology,2009,17(2):278-280,284. |
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| Authors: | FENG Yu-Jie DING Hai-Yang ZHANG Wen-Jun |
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| Affiliation: | Dept.of Environmental Science and Engineering;Harbin Institute of Technology;Harbin 150090;China |
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| Abstract: | Thermal decomposition process was introduced to prepare rare earth(Dy,Nd,Eu and Gd) doped Ti/SnO2-Sb electrodes.Taking phenol as model organics,the properties of electrocatalytic degradation of the organic were evaluated.Cyclic voltammetry(CV) of the prepared electrocatalytic electrodes was tested in 500 mg/L phenol solution,and the oxidation peak of 4.46 mA/cm2 was achieved for Nd doped Ti/SnO2-Sb(Ti/SnO2-Sb-Nd) electrode.The Tafel curves were tested in 0.5 mol/L H2SO4 solution.The results exhibit that the... |
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| Keywords: | phenol SnO2electrode cyclic voltammetry Tafel curve rare earth |
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