Effects of precursors for manganese-loaded gamma-Al2O3 catalysts on plasma-catalytic removal of o-xylene
文献类型：期刊论文
| 作者 | Wang, Lian; He, Hong; Zhang, Changbin; Wang, Yafei; Zhang, Bo |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2016-03-15 |
| 卷号 | 288期号:0页码:406-413 |
| 关键词 | Non-thermal plasma Mn/Al2O3 catalyst Different precursors Microcrystalline phase |
| 英文摘要 | The effects of precursors and Mn loading amounts on Mn/Al2O3 catalysts for plasma-catalytic removal of o-xylene were systematically investigated. Catalysts were characterized by XRD, XPS, and H-2-TPR. Experimental results show that o-xylene conversion was greatly increased even at very low specific energy density with addition of Mn/Al2O3 catalysts. The Mn/Al2O3 catalyst prepared with a manganese acetate precursor had the highest catalytic activity for o-xylene removal. Among tested loading amounts, 6 wt% Mn loading was the optimum condition for preparation of catalysts for o-xylene conversion. The presence of more Mn4+ species, higher proportion of lattice oxygen and microcrystalline MnO2 phase on the surface of catalysts was responsible for the high catalytic activity for o-xylene removal. To compare with Mn/Al2O3 catalysts prepared with manganese acetate precursor, alpha-MnO2/Al2O3 with more Me4+ and lattice oxygen on the surface was also prepared. The o-xylene conversion, CO2 selectivity, and (CO + CO2) (i.e. COx) yield increased with introduction of alpha-MnO2/Al2O3 catalyst, which was due to the high oxidation ability of alpha-MnO2/Al2O3 induced by higher amounts of Me4+ and lattice oxygen. The concentrations of O-3 and NOx byproducts greatly decreased when catalysts were used. The FT-IR spectrum show that CH3CHO, O-3, NOx and HNO3 products were formed without catalyst, while HCOOH/CH3COOH formation occurred with catalysts. (C) 2015 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/35747]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 推荐引用方式 GB/T 7714 | Wang, Lian,He, Hong,Zhang, Changbin,et al. Effects of precursors for manganese-loaded gamma-Al2O3 catalysts on plasma-catalytic removal of o-xylene[J]. CHEMICAL ENGINEERING JOURNAL,2016,288(0):406-413. |
| APA | Wang, Lian,He, Hong,Zhang, Changbin,Wang, Yafei,&Zhang, Bo.(2016).Effects of precursors for manganese-loaded gamma-Al2O3 catalysts on plasma-catalytic removal of o-xylene.CHEMICAL ENGINEERING JOURNAL,288(0),406-413. |
| MLA | Wang, Lian,et al."Effects of precursors for manganese-loaded gamma-Al2O3 catalysts on plasma-catalytic removal of o-xylene".CHEMICAL ENGINEERING JOURNAL 288.0(2016):406-413. |
入库方式： OAI收割
来源：生态环境研究中心
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