| Pd含量对Pt-Pd/C催化剂电催化氧化活性的影响 |
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| 引用本文： | 张玥,高颖,邬冰.Pd含量对Pt-Pd/C催化剂电催化氧化活性的影响[J].黑龙江大学自然科学学报,2012,29(2):235-238. |
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| 作者姓名： | 张玥 高颖 邬冰 |
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| 作者单位： | 哈尔滨师范大学化学化工学院,哈尔滨,150025 |
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| 基金项目： | 黑龙江省自然科学基金资助项目，哈尔滨师范大学博士启动基金资助项目 |
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| 摘 要： | 采用浸渍液相还原微波辅助法制备了不同Pt-Pd原子比例的、高分散碳载铂钯(Pt-Pd/C)催化剂。运用循环伏安法(CV)、线性扫描(LSV)、计时电流法(CA)、能谱(EDS)、透射电子显微镜(TEM)和X射线衍射(XRD)等技术分析不同Pt-Pd原子比例Pt-Pd/C催化剂的组成、结构及其对甲醇的电催化氧化活性的影响。实验结果表明,Pd本身对甲醇没有电催化氧化活性,但Pd的加入影响Pt/C催化剂对甲醇的电催化氧化活性。当Pt∶Pd原子比为2∶1时,催化剂对甲醇具有最高的电催化氧化活性和稳定性。
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| 关 键 词： | 不同Pt-Pd原子比例 催化剂 甲醇 活性 |
Effect of Pd content in the Pt -Pd/C catalysts for electro-catalytic oxidation activity of methanol |
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| ZHANG Yue
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GAO Ying
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WU Bing.Effect of Pd content in the Pt -Pd/C catalysts for electro-catalytic oxidation activity of methanol[J].Journal of Natural Science of Heilongjiang University,2012,29(2):235-238. |
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| Authors: | ZHANG Yue GAO Ying WU Bing |
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| Institution: | (College of Chemistry and Chemical Engineering,Harbin Normal University,Harbin 150025,China) |
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| Abstract: | Carbon supported highly dispersed platinum-palladium(Pt-Pd/C) catalysts were prepared by Microwave-assisted impregnation liquid reductants.Different techniques,such as cyclic voltammetry(CV),linear sweep(LSV),chronoamperometry(CA),spectroscopy(EDS),transmission electron microscopy(TEM) and X-ray diffraction(XRD),were used to characterize the catalysts,the composition and structure of the Pt-Pd/C catalysts and the electro-catalytic oxidation activities for methanol.The results showed that Pd itself had no electro-catalytic oxidation activities for methanol,but the addition of Pd affected the electro-catalytic oxidation activities of the Pt/C catalysts for methanol.The Pt-Pd/C catalysts had the highest activities and stabilities for methanol when the Pt-Pd atomic ratio was 2∶1. |
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| Keywords: | different atomic ratios Pt-Pd/C catalyst methanol electro-catalytic oxidation |
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