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题名: Catalytic performance of Pt/MOx loaded over SiC-DPF for soot oxidation
作者: Oi-Uchisawa, J;  Obuchi, A;  Wang, S;  Nanba, T;  Ohi, A
关键词: Pt ;  SiC-DPF ;  TiO2 ;  diesel ;  soot ;  carbon ;  oxidation ;  sulfur ;  SO2 ;  fuel
刊名: APPLIED CATALYSIS B-ENVIRONMENTAL
发表日期: 2003-06-30
卷: 43, 期:2, 页:117-129
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Environmental ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: The effects of the sulfur level in diesel exhaust gas and the type of support material (MOx) of the Pt catalyst on the performance of the catalyst with regard to soot oxidation were investigated. The experiments were carried out both under simulated exhaust conditions using granular-formed samples and under practical conditions using a catalyst-loaded diesel particulate filter (DPF) placed in a diesel engine exhaust. Under the simulated conditions, the catalytic activity increased as the SO2 concentration of the reactant gas increased. A promotive effect due to the sulfate produced by the oxidation of SO2 on the Pt surface appeared for soot oxidation when SO2 = 15 ppm, but was markedly lower for SO2 = 1.5 ppm. In the engine tests, the catalytic activity also increased as the sulfur content of the fuel increased. Among the support materials investigated, TiO2 derived from either Ti(SO4)(2) or a TiO2 colloidal sol showed relatively higher activity. (C) 2002 Elsevier Science B.V. All rights reserved.
关键词[WOS]: DIESEL EXHAUST-GASES
语种: 英语
WOS记录号: WOS:000183359500002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139263
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Natl Inst AIST, Inst Environm Management Technol, Catalyt & Electrochem Purificat Grp, Tsukuba, Ibaraki 3058569, Japan
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Oi-Uchisawa, J,Obuchi, A,Wang, S,et al. Catalytic performance of Pt/MOx loaded over SiC-DPF for soot oxidation[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2003,43(2):117-129.
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