| 碱性介质中Pd纳米线电极对甲醇的电催化氧化 |
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| 引用本文： | 徐明丽,张正富,杨显万.碱性介质中Pd纳米线电极对甲醇的电催化氧化[J].稀有金属材料与工程,2010,39(1). |
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| 作者姓名： | 徐明丽 张正富 杨显万 |
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| 作者单位： | 昆明理工大学,云南,昆明,650093 |
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| 基金项目： | 云南省应用基础研究面上项目(2008ZC031M);;校青年科研基金资助项目(14118075) |
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| 摘 要： | 采用交流电沉积法制备Pd纳米线阵列电极催化剂,循环伏安法测定催化剂对甲醇的电催化氧化活性,用AFM、TEM、XRD和XPS表征Pd纳米线的组织形貌、晶体结构和化学状态。结果表明:Pd纳米线的直径为65～75nm,径向表面呈毛刺结构,处于体心立方晶体结构的单质态。Pd纳米线阵列电极在KOH碱性介质中对甲醇的电催化氧化活性比其平板电极高约14倍,比文献中负载型Pt纳米颗粒催化剂在酸性介质中的催化活性高50～150倍,且具有较好的稳定性。
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| 关 键 词： | 钯纳米线电极 电催化氧化 甲醇 碱性介质 |
Electrocatalytic Oxidation of Methanol on Pd Nanowire Electrode in Alkaline Media |
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| Xu Mingli,Zhang Zhengfu,Yang Xianwan.Electrocatalytic Oxidation of Methanol on Pd Nanowire Electrode in Alkaline Media[J].Rare Metal Materials and Engineering,2010,39(1). |
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| Authors: | Xu Mingli Zhang Zhengfu Yang Xianwan |
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| Affiliation: | Kunming University of Science and Technology;Kunming 650093;China |
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| Abstract: | Palladium nanowire array electrode catalysts were prepared by AC electro-deposition method.The electro-catalytic oxidation activities for methanol were measured by cyclic voltammetry.The morphology,crystal structure and chemical state of Pd nanowires were characterized by AFM,TEM,XRD and XPS.The results indicate that the diameter of Pd nanowires was about from 65 to 75 nm,their radial surface was not smooth but coarse,and they were simple substance with body centered cubic structure.The electro-catalytic ac... |
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| Keywords: | Pd nanowire electrode electrocatalytic oxidation methanol alkaline media |
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