| MnOx/ZrO2催化剂表面氧性能 |
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| 引用本文： | 周仁贤,俞铁铭,蒋晓原,陈芳,郑小明. MnOx/ZrO2催化剂表面氧性能[J]. 催化学报, 1998, 19(5): 398-401 |
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| 作者姓名： | 周仁贤 俞铁铭 蒋晓原 陈芳 郑小明 |
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| 作者单位： | 杭州大学催化研究所 |
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| 摘 要： | 采用ＸＲＤ，ＴＰＤ和ＴＰＲ等技术研究了ＭｎＯｘ／ＺｒＯ２催化剂的表面特性，结果表明，ＺｒＯ２表面的ＭｎＯｘ物种主要以Ｍｎ２Ｏ３和ＭｎＯ２形态存在，经还原－氧化处理后，ＭｎＯｘ物种的分散状况趋好。Ｍｎ－Ｚｒ之间的相互作用促进ＭｎＯ２的分解，而抑制Ｍｎ２Ｏ３的分解。
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| 关 键 词： | ZrO2 MnO 表面氧 表面 |
| 收稿时间： | 1998-10-25 |
PERFORMANCE OF SURFACE OXYGEN OVER MnO x /ZrO 2 CATALYSTS |
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| Zhou Renxian,Yu Tieming,Jiang Xiaoyuan,Chen Fang,Zheng Xiaoming. PERFORMANCE OF SURFACE OXYGEN OVER MnO x /ZrO 2 CATALYSTS[J]. Chinese Journal of Catalysis, 1998, 19(5): 398-401 |
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| Authors: | Zhou Renxian Yu Tieming Jiang Xiaoyuan Chen Fang Zheng Xiaoming |
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| Abstract: | MnO x /ZrO 2 catalysts were characterized by XRD, TPD and TPR. The results indicated that MnO x species on ZrO 2 were mainly MnO 2 and Mn 2O 3. Reduction oxidation treatment raised the dispersion of MnO x species on ZrO 2. The interaction between MnO x and ZrO 2 promoted the decomposition of MnO 2, and restrained the decomposition of Mn 2O 3. The highly dispersed or little crystallite MnO x was the predominant contributor in oxidation activity for CO. |
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| Keywords: | Manganese oxide Zirconia Surface oxygen Temperature programmed reduction Temperature programmed desorption Carbon monoxide Oxidation |
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