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题名: La-Ce-Ni-O monolithic perovskite catalysts potential for gasoline autothermal reforming system
作者: Qi, AD;  Wang, SD;  Fu, GZ;  Ni, CJ;  Wu, DY
关键词: perovskite ;  monolithic catalyst ;  hydrogen ;  gasoline ;  autothermal reforming ;  distributed power system ;  fuel cells
刊名: APPLIED CATALYSIS A-GENERAL
发表日期: 2005-03-18
DOI: 10.1016/j.apcata.2004.11.038
卷: 281, 期:1-2, 页:233-246
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Life Sciences & Biomedicine
类目[WOS]: Chemistry, Physical ;  Environmental Sciences
研究领域[WOS]: Chemistry ;  Environmental Sciences & Ecology
英文摘要: Hydrogen generation from gasoline is essentially one of the critical technologies for the commercialization of small-scale fuel cells auxiliary/backup power systems. so catalysts suitable for autothermal reforming (ATR) of gasoline are desperately needed. La0.8Ce0.2NiO3 with a crystal structure of perovskite was developed both in pellet and on cordierite substrate by citrate method. Autothermal reforming of gasoline or its surrogates. n-octane with or without thiophene additive, was carried out on either bulk perovskite pellet or monolithic perovskite catalyst. During the 220-h long-term test, the pellet catalyst exhibited high thermal stability and activity with hydrogen yield approaching to the theoretical maximum value and only minor amount of CH4 slipping through. It possessed fairly good sulfur tolerance, almost immune to 5 ppmw sulfur although could still be seriously poisoned when subjected to high concentration of sulfur or gasoline. The monolithic perovskite catalysts were developed by screening slurries, binders as well as Substrates with or without pre-washcoating CeZrO2. The monolithic La-0.8.Ce0.2NiO3 formed in situ on the raw cordierite monolith could be an effective catalyst for ATR of gasoline, exhibiting superior performance to the catalyst of 0.3 wt.%Rh/CeO2-ZrO2/Cordierite at a temperature range 650-800 degrees C. On whatever the pellet or monolithic catalysts, the active sites were presumably the in situ reduced Ni-0 which were well dispersed and stabilized by the perovskite crystal structure. The good performances of La0.8Ce0.2NiO3, better thermal stability and immunity to carbon foul and sulfur poison than LaNiO3 could be ascribed to the increased oxygen mobility with the presence of sesquioxide of cerium. (c) 2004 Elsevier B.V. All rights reserved.
关键词[WOS]: FUEL-CELL ;  HYDROGEN-PRODUCTION ;  HYDROCARBON FUELS ;  PARTIAL OXIDATION ;  COMBUSTION ;  VEHICLES ;  REACTOR ;  CERIA
语种: 英语
WOS记录号: WOS:000227853700028
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139793
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.Royal Mil Coll Canada, Dept Chem & Chem Engn, Kingston, ON K7K 7B4, Canada
2.Dalian Inst Chem Phys, Dept Environm & Energy Engn, Dalian 116023, Peoples R China

Recommended Citation:
Qi, AD,Wang, SD,Fu, GZ,et al. La-Ce-Ni-O monolithic perovskite catalysts potential for gasoline autothermal reforming system[J]. APPLIED CATALYSIS A-GENERAL,2005,281(1-2):233-246.
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