| 周吉文,李一倬,范泽云,施建伟,上官文峰.负载型钴锰复合氧化物臭氧辅助催化降解低浓度甲醛的性能研究[J].分子催化,2014,(1):60-66 |
| 负载型钴锰复合氧化物臭氧辅助催化降解低浓度甲醛的性能研究 |
| Catalytic Oxidation of Low Concentration Formaldehyde with the Assist of Ozone over Supported Cobalt-manganese Composite Oxides |
| 投稿时间：2014-01-14 修订日期：2014-01-27 |
| DOI： |
| 中文关键词: Co-MnOx/ZSM-5，催化，甲醛，臭氧辅助 |
| 英文关键词:Co-MnOx/ZSM-5,catalytic, formaldehyde, ozone-assisted |
| 基金项目:国家高技术研究发展计划（863计划） |
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| 中文摘要: |
| 制备了负载型钴锰复合氧化物Co-MnOx/ZSM-5催化剂，采用浸渍法将催化剂负载到堇青石蜂窝陶瓷上，在密封舱内进行催化降解甲醛研究，考察了室温下臭氧辅助催化降解室内低浓度甲醛的特性。同时，也探讨了催化剂制备工艺对催化剂活性的影响。实验结果表明：在500oC煅烧温度条件下制备的10% Co-MnOx/ZSM-5催化剂具有最高的催化活性。通过XRD、BET、TEM、XPS和TG-DSC等手段的表征结果表明，其高活性可能是主要来自于形成的CoMnO3晶相和Mn4 与Mn3 价态共存。 |
| 英文摘要: |
| A series of Co-MnOx/ZSM-5 catalysts were synthesized and coated on cordierite honeycomb ceramics by impregnation method. Their activities in catalytic oxidation of low concentration formaldehyde with the assist of ozone were evaluated in a seal measurement chamber. Moreover, the effect of catalyst preparation was discussed. In present research, the 10% Co-MnOx/ZSM-5 sample calcined at 500oC showed the best catalytic performance. The characterization of XRD, BET, TEM, XPS and TG-DSC evidenced that the formation of CoMnO3 and the coexistence of Mn4 /Mn3 was a possible determinant for formaldehyde removal. |
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