| Pt-TiO_2-La_2O_3/石墨电极对CO氧化的电催化作用 |
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| 引用本文： | 苏育才,童庆松,施继成.Pt-TiO_2-La_2O_3/石墨电极对CO氧化的电催化作用[J].吉林化工学院学报,2007,24(1):17-20. |
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| 作者姓名： | 苏育才 童庆松 施继成 |
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| 作者单位： | 福建师范大学,化学材料科学院,福建,福州,350007 |
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| 基金项目： | 教育部科学技术研究项目
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福建省自然科学基金
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福建省科技厅科研项目 |
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| 摘 要： | 采用溶胶-凝胶法制备了Pt-La2O3-TiO2/石墨电极.通过循环伏安法、XRD衍射和扫描电镜等现代方法测试了Pt-La2O3-TiO2/石墨电极对吸附在电极表面上和溶解在0.2 mol/L Na2SO4溶液中CO的氧化的电催化活性.实验结果表明,氧化镧掺入Pt-TiO2/石墨电极中可以将吸附在电极上的CO和溶液中溶解的CO的氧化电位由0.47 V降低到0.40 V(vs.SCE),改善了对CO氧化的电催化活性.
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| 关 键 词： | 循环伏安法 电催化 XRD衍射 扫描电镜 |
| 文章编号： | 1007-2853（2007）01-0017-04 |
| 收稿时间： | 2006-12-19 |
| 修稿时间： | 2006年12月19 |
Electrocatalytic performance of the Pt-La2O3-TiO2/graphite electrode for the oxidation of carbon monoxide |
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| SU Yu-cai,Tong Qing-song,SHI Ji-cheng.Electrocatalytic performance of the Pt-La2O3-TiO2/graphite electrode for the oxidation of carbon monoxide[J].Journal of Jilin Institute of Chemical Technology,2007,24(1):17-20. |
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| Authors: | SU Yu-cai Tong Qing-song SHI Ji-cheng |
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| Affiliation: | College of Chemistry and Materials Science, Fujian Normal University,Fuzhou 350007 ,China |
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| Abstract: | A Pt-La2O3-TiO2/graphite electrode was prepared by using a sol-gel method.Cyclic voltammograms,XRD pattern and SEM techniques were employed to study the electrocatalytic activity of the Pt-La2O3-TiO2/graphite electrode for the oxidation of carbon monoxide adsorbed on the surface of the electrode,and dissolved in the 0.2mol/L Na2SO4 solution,respectively.Experimental results show that the Pt-TiO2/graphite electrode doped by La2O3 obviously decreases the oxidation potentials of the carbon monoxide adsorbed on the surface of the electrode and dissolved in the 0.2mol/L Na2SO4 solution from 0.47V to 0.40V(vs.SCE),it improves the electrocatalytic activity of the oxidation of CO. |
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| Keywords: | cyclic voltammetery electrocatalysis XRD pattern SEM |
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