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题名: Preparation of CeO2/BaMnAl11O19-alpha catalysts and application in methane combustion
作者: Xu, JG;  Tian, ZJ;  Wang, JW;  Xu, YP;  Xu, XS;  Lin, LW
关键词: methane ;  catalytic combustion ;  reverse microemulsion ;  CeO2
刊名: ACTA CHIMICA SINICA
发表日期: 2004-02-28
卷: 62, 期:4, 页:373-376
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: CeO2 had a lower activity for hydrocarbon oxidation according to the correlation between the rate of hydrocarbon oxidation and metal-oxygen bond strength (volcano plot). However, the CH4 combustion activity of the nanosized CeO2 supported on barium hexaaluminates was so high that the temperature for 10% conversion was comparable with that of noble metal oxide catalysts. Such a result has attracted considerable attention due to effect of preparation on the structure and combustion activity of CeO2-containing catalysts. In present work, BaMAl11 O-19 (- alpha) (M = Mn, Co, Ce) catalysts were prepared by reverse microemulsion. Effect of M on phase composition, specific surface area and CH4 combustion activity was investigated. beta-Al2O3 and CeO2 are the major phase in the BaMmAl(11)O(19-a) and BaCeA(11) O19 - alpha catalysts, respectively, while BaCoAl11 O19-alpha, catalyst consists of gamma-Al2O3 and alpha-Al2O3 phase. The BaCeAl11O19-alpha has the highest surface area among the three catalysts, but its combustion activity is lower than that of the BaMnA(11)O(19-alpha), catalyst. On the basis of the results from BaMAl11O19-alpha (M = Mn, Co, Ce) catalysts, CeO2/BaMnAl11O19-alpha catalysts were prepared. It not only has a higher specific area but also has a higher activity for methane combustion. The results from the 100 h activity test showed that CeO2/BaMnAll, O19-alpha might be a candidate for catalytic gas turbine combustor.
关键词[WOS]: HIGH-TEMPERATURE COMBUSTION ;  TOTAL OXIDATION ;  STABILITY ;  ALUMINA ;  OXIDES
语种: 英语
WOS记录号: WOS:000189108900006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139326
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.Chinese Acad Sci, Lab Nat Gas Utilizat & Appl Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Xu, JG,Tian, ZJ,Wang, JW,et al. Preparation of CeO2/BaMnAl11O19-alpha catalysts and application in methane combustion[J]. ACTA CHIMICA SINICA,2004,62(4):373-376.
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