| Pt/Ce0.6Zr0.4O2催化剂在水煤气变换反应中的电导研究 |
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| 引用本文： | 毕亚东,徐恒泳,李文钊.Pt/Ce0.6Zr0.4O2催化剂在水煤气变换反应中的电导研究[J].高等学校化学学报,2009,30(5):945-948. |
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| 作者姓名： | 毕亚东 徐恒泳 李文钊 |
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| 作者单位： | 中国科学院大连化学物理研究所,大连,116023 |
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| 基金项目： | 国家重点基础研究发展规划(973计划) |
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| 摘 要： | 采用浸渍法制备了不同载体(Ce0.6Zr0.4O2,CeO2和ZrO2)负载的Pt基水煤气变换反应(WGSR)催化剂, 并对其进行了活性评价. 利用X射线衍射(XRD), 程序升温还原(TPR)和原位电导等技术对样品进行了表征. 结果表明, Ce0.6Zr0.4O2固溶体具有比CeO2更高的氧转移能力, 因此促进了Pt/Ce0.6Zr0.4O2催化剂的WGSR活性.
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| 关 键 词： | Pt/Ce0.6Zr0.4O2 催化剂 水煤气变换反应 程序升温还原 电导 |
| 收稿时间： | 2008-10-28 |
Electrical Conductivity Study of Pt/Ce_(0.6)Zr_(0.4)O_2 Catalyst in Water-gas Shift Reaction |
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| BI Ya-Dong,XU Heng-Yong,LI Wen-Zhao.Electrical Conductivity Study of Pt/Ce_(0.6)Zr_(0.4)O_2 Catalyst in Water-gas Shift Reaction[J].Chemical Research In Chinese Universities,2009,30(5):945-948. |
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| Authors: | BI Ya-Dong XU Heng-Yong LI Wen-Zhao |
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| Institution: | Dalian Institute of Chemical Physics;Chinese Academy of Sciences;Dalian 116023;China |
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| Abstract: | The catalytic activity for water-gas shift reaction was investigated over Pt catalysts supported on different supports,such as Ce0.6Zr0.4O2,CeO2 and ZrO2.The samples were characterized by XRD,temperature-programmed reduction(TPR) and in situ electrical conductivity to evaluate the structure and redox properties.It is concluded that Ce0.6Zr0.4O2 support was a single phase solid solution with high capacity of oxygen transfer,therefore enthanced the catalytic activity of Pt/Ce0.6Zr0.4O2 catalyst,for water-gas ... |
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| Keywords: | Pt/Ce0 6Zr0 4O2 catalyst Water-gas shift reaction Temperature-programmed reduction Electrical conductivity |
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