| 氧化铝负载不同晶型MnO2用于低温等离子体催化耦合降解乙醛和苯 |
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| 引用本文： | 李一倬,范泽云,施建伟,刘震炎,上官文峰.氧化铝负载不同晶型MnO2用于低温等离子体催化耦合降解乙醛和苯[J].工业催化,2012,20(11):9-14. |
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| 作者姓名： | 李一倬 范泽云 施建伟 刘震炎 上官文峰 |
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| 作者单位： | 上海交通大学燃烧与环境技术中心，上海 200240 |
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| 基金项目： | 国家高技术研究发展计划(863计划)(2010AA064907) |
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| 摘 要： | 制备了α-MnO2/γ-Al2O3和β-MnO2/γ-Al2O3负载型锰系氧化物催化剂，通过XRD、TEM、TG和H2-TPR等手段对催化剂进行表征，分别考察催化剂与低温等离子体耦合协同去除乙醛和苯的效果。结果表明，MnO2/γ-Al2O3催化剂的加入明显提高低温等离子体去除挥发性有机物的效率及CO2选择性,α-MnO2/γ-Al2O3的耦合效果优于β-MnO2/γ-Al2O3。低温等离子体输入电压为16.8 kV，α-MnO2/γ-Al2O3与低温等离子体耦合乙醛去除率可达100%。降解苯的效率较低，这是由于苯的化学结构更稳定。
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| 关 键 词： | 催化化学 低温等离子体 二氧化锰 乙醛 苯 |
Alumina supported different crystalline MnO2 for catalytic degradation of acetaldehyde and benzene with non-thermal plasma |
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| LI Yizhuo,FAN Zeyun,SHI Jianwei,LIU Zhenyan,SHANGGUAN Wenfeng.Alumina supported different crystalline MnO2 for catalytic degradation of acetaldehyde and benzene with non-thermal plasma[J].Industrial Catalysis,2012,20(11):9-14. |
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| Authors: | LI Yizhuo FAN Zeyun SHI Jianwei LIU Zhenyan SHANGGUAN Wenfeng |
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| Affiliation: | Research Center for Combustion and Environment Technology, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | α-MnO2/γ-Al2O3 and β-MnO2/γ-Al2O3 catalysts were prepared and characterized by XRD,TEM,TG and H2-TPR.The properties of the catalysts for degradation of acetaldehyde and benzene with non-thermal plasma were investigated.The results showed that MnO2/γ-Al2O3 catalyst could obviously improve the removal efficiency of VOCs and CO2 selectivity with non-thermal plasma,and α-MnO2/γ-Al2O3 was superior to β-MnO2/γ-Al2O3.When the input voltage of the non-thermal plasma was 16.8 kV,acetaldehyde removal efficiency of 100% over α-MnO2/γ-Al2O3 catalyst combined with non-thermal plasma was attained.Compared with acetaldehyde,benzene was more difficult to be removed because of its more stable chemical structure. |
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| Keywords: | catalytic chemistry non-thermal plasma manganese dioxide acetaldehyde benzene |
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