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Preparation of CeO2/BaMnAl11O19-alpha catalysts and application in methane combustion
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
2004-02-28
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
关键词[WOS]HIGH-TEMPERATURE COMBUSTION ; TOTAL OXIDATION ; STABILITY ; ALUMINA ; OXIDES
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.
语种英语
WOS记录号WOS:000189108900006
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139326
专题中国科学院大连化学物理研究所
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
推荐引用方式
GB/T 7714
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.
APA Xu, JG,Tian, ZJ,Wang, JW,Xu, YP,Xu, XS,&Lin, LW.(2004).Preparation of CeO2/BaMnAl11O19-alpha catalysts and application in methane combustion.ACTA CHIMICA SINICA,62(4),373-376.
MLA Xu, JG,et al."Preparation of CeO2/BaMnAl11O19-alpha catalysts and application in methane combustion".ACTA CHIMICA SINICA 62.4(2004):373-376.
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