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A temperature programmed desorption investigation on the interaction of Ba0.5Sr0.5Co0.8Fe0.2O3-delta perovskite oxides with CO2 in the absence and presence of H2O and O-2

文献类型:期刊论文

作者Yan, Aiyu1,2; Liu, Bin1,2; Dong, Yonglai1; Tian, Zhijian1; Wang, Dezheng3; Cheng, Mojie1
刊名applied catalysis b-environmental
出版日期2008-04-15
卷号80期号:1-2页码:24-31
关键词Ba0.5Sr0.5Co0.8Fe0.2O3-delta perovskite oxides temperature programmed desorption carbon dioxide
英文摘要the adsorption of co2 on ba0.5sr0.5co0.8fe0.2o3-delta (bscf) perovskite oxides in the absence and presence of o-2 and h2o at various temperatures was investigated by temperature programmed desorption (tpd). xrd was used to characterize the phase of the samples before and after adsorption. no co2 desorption peak was observed when co2 was adsorbed on bscf at room temperature. a co2 desorption peak from the decomposition of surface sr0.6ba0.4co3 appeared after co2 was adsorbed at 400-700 degrees c. the reactivity of co2 with bscf increased with increasing temperature, and the resulted carbonate became more stable. when co2 and o-2 were co-adsorbed, the co2 desorption peak shifted to lower temperature and the peak area decreased compared with when only co2 was adsorbed, which was due to the competitive adsorption of co2 and o-2. the adsorption of co2 on bscf was promoted in the presence of h2o. a co(2)2 desorption peak ranging from ca. 250 to 500 degrees c, assigned to the decomposition of the bicarbonate, was observed when h2o was added. the amount of co2 adsorbed on ba1-xsrco0.8fe0.2o3-delta increased when the barium doping level increased from 0.3 to 1. (c) 2007 elsevier b.v. all rights reserved.
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
关键词[WOS]selective catalytic-reduction ; oxygen-permeable membrane ; partial oxidation ; fuel-cells ; chemical-stability ; barium carbonates ; activation-energy ; nox storage ; it-sofc ; performance
收录类别SCI
语种英语
WOS记录号WOS:000255673300003
公开日期2015-11-17
源URL[http://159.226.238.44/handle/321008/140762]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China
推荐引用方式
GB/T 7714
Yan, Aiyu,Liu, Bin,Dong, Yonglai,et al. A temperature programmed desorption investigation on the interaction of Ba0.5Sr0.5Co0.8Fe0.2O3-delta perovskite oxides with CO2 in the absence and presence of H2O and O-2[J]. applied catalysis b-environmental,2008,80(1-2):24-31.
APA Yan, Aiyu,Liu, Bin,Dong, Yonglai,Tian, Zhijian,Wang, Dezheng,&Cheng, Mojie.(2008).A temperature programmed desorption investigation on the interaction of Ba0.5Sr0.5Co0.8Fe0.2O3-delta perovskite oxides with CO2 in the absence and presence of H2O and O-2.applied catalysis b-environmental,80(1-2),24-31.
MLA Yan, Aiyu,et al."A temperature programmed desorption investigation on the interaction of Ba0.5Sr0.5Co0.8Fe0.2O3-delta perovskite oxides with CO2 in the absence and presence of H2O and O-2".applied catalysis b-environmental 80.1-2(2008):24-31.

入库方式: OAI收割

来源:大连化学物理研究所

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