Remarkable promotion effect of trace sulfation on OMS-2 nanorod catalysts for the catalytic combustion of ethanol
文献类型：期刊论文
| 作者 | Zhang, Jie; Zhang, Changbin; He, Hong |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2015-09-01 |
| 卷号 | 35页码:69-75 |
| 关键词 | Manganese oxide Octahedral molecular sieves (OMS-2) Catalytic oxidation VOCs Lattice oxygen |
| 英文摘要 | OMS-2 nanorod catalysts were synthesized by a hydrothermal redox reaction method using MnSO4 (OMS-(2)-SO4) and Mn(CH3COO)(2) (OMS-2-AC) as precursors. SO42--doped OMS-2-AC catalysts with different SO42- concentrations were prepared next by adding (NH4)(2)SO4 solution into OMS-2-AC samples to investigate the effect of the anion SO42- on the OMS-2-AC catalyst. All catalysts were then tested for the catalytic oxidation of ethanol. The OMS-2-SO4 catalyst synthesized demonstrated much better activity than OMS-2-AC. The SO42- doping greatly influenced the activity of the OMS-2-AC catalyst, with a dramatic promotion of activity for suitable concentration of SO42-(SO4/catalyst = 0.5% W/W). The samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), inductively coupled plasma optical emission spectroscopy (ICP-OES), NH3-TPD and H-2-TPR techniques. The results showed that the presence of a suitable amount of SO(4)(2-)species in the OMS-2-AC catalyst could decrease the Mn-O bond strength and also enhance the lattice oxygen and acid site concentrations, which then effectively promoted the catalytic activity of OMS-2-AC toward ethanol oxidation. Thus it was confirmed that the better catalytic performance of OMS-2-SO4 compared to OMS-2-AC is due to the presence of some residual SO42- species in OMS-2-SO4 samples. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| 研究领域[WOS] | Environmental Sciences |
| WOS记录号 | WOS:000362982300009 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32481]  |
| 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 | Zhang, Jie,Zhang, Changbin,He, Hong. Remarkable promotion effect of trace sulfation on OMS-2 nanorod catalysts for the catalytic combustion of ethanol[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2015,35:69-75. |
| APA | Zhang, Jie,Zhang, Changbin,&He, Hong.(2015).Remarkable promotion effect of trace sulfation on OMS-2 nanorod catalysts for the catalytic combustion of ethanol.JOURNAL OF ENVIRONMENTAL SCIENCES,35,69-75. |
| MLA | Zhang, Jie,et al."Remarkable promotion effect of trace sulfation on OMS-2 nanorod catalysts for the catalytic combustion of ethanol".JOURNAL OF ENVIRONMENTAL SCIENCES 35(2015):69-75. |
入库方式： OAI收割
来源：生态环境研究中心
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