| 微波加热分解法制备CuO-Ce0.6Zr0.4O2及其催化CO氧化性能 |
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| 引用本文： | 杨志强,毛东森,吴仁春,俞俊,王倩.微波加热分解法制备CuO-Ce0.6Zr0.4O2及其催化CO氧化性能[J].物理化学学报,2011,27(5):1163-1168. |
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| 作者姓名： | 杨志强 毛东森 吴仁春 俞俊 王倩 |
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| 作者单位： | School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 200235, P. R. China |
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| 基金项目： | 上海市教委重点学科建设项目 |
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| 摘 要： | 采用微波加热分解法制备了一系列CuO含量(0-25%, w)不同的CuO-Ce0.6Zr0.4O2催化剂, 并用X射线衍射(XRD)、透射电镜(TEM)、N2吸附-脱附(BET)和H2程序升温还原(H2-TPR)技术对催化剂进行了表征, 利用色谱流动法考察了其催化CO低温氧化性能. 结果表明: 当CuO含量为15%时, 所制备催化剂的催化活性最佳. 在催化剂中存在三种不同类型的铜物种, 即高分散、小颗粒和大颗粒的CuO. 催化剂表面高分散和小颗粒的CuO有利于催化活性的提高, 而大颗粒的CuO对催化活性具有抑制作用.
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| 关 键 词： | 微波加热 氢氧化四氨合铜 CuO-Ce0.6Zr0.4O2催化剂 CO氧化 |
| 收稿时间： | 2010-12-22 |
| 修稿时间： | 2011-03-22 |
Preparation of CuO-Ce0.6Zr0.4O2 by Microwave Heating Decomposition and Its Catalytic Property for CO Oxidation |
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| YANG Zhi-Qiang,MAO Dong-Sen,WU Ren-Chun,YU Jun,WANG Qian.Preparation of CuO-Ce0.6Zr0.4O2 by Microwave Heating Decomposition and Its Catalytic Property for CO Oxidation[J].Acta Physico-Chimica Sinica,2011,27(5):1163-1168. |
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| Authors: | YANG Zhi-Qiang MAO Dong-Sen WU Ren-Chun YU Jun WANG Qian |
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| Institution: | School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 200235, P. R. China |
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| Abstract: | A series of CuO-Ce0.6Zr0.4O2 catalysts with different contents (0-25%, w) of CuO were prepared by microwave heating decomposition and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), N2 adsorption-desorption (BET), and temperature-programmed reduction with hydrogen (H2-TPR). The activities of the catalysts for CO oxidation were evaluated using a microreactor-gas chromatograph system. The results show that the CuO-Ce0.6Zr0.4O2 catalyst exhibits the best catalytic activity for... |
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| Keywords: | Microwave heating Cu(NH3)4(OH)2 CuO-Ce0 6Zr0 4O2 catalyst CO oxidation |
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