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Studies on the decomposition of carbon dioxide into carbon with oxygen-deficient magnetite I. Preparation, characterization of magnetite, and its activity of decomposing carbon dioxide
Zhang, CL; Li, S; Wang, LJ; Wu, TH; Peng, SY
关键词Decomposition Of Carbon Dioxide Magnetite Oxygen-deficiency Carbon Mossbauer Spectra Stability Reduction
刊名MATERIALS CHEMISTRY AND PHYSICS
2000-01-14
62期:1页:44-51
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology
类目[WOS]Materials Science, Multidisciplinary
研究领域[WOS]Materials Science
关键词[WOS]CATION-EXCESS MAGNETITE ; CO2 DECOMPOSITION ; COMPLETE REDUCTION ; 300-DEGREES-C ; REACTIVITY ; FE3O4
英文摘要The magnetite Fe3O4+delta (0 less than or equal to delta less than or equal to 0.5) of different particle sizes were prepared using wet-heating oxidation method, supercritical fluid dry method and ferrous oxalate and ferric oxalate high-temperature decomposition method, and their structure were characterized by XRD, Mossbauer spectra, IR spectra and STEM. The oxygen-deficient magnetite of Fe3O4+delta (0 < delta < 1) was prepared using H-2 reduction of Fe3O4+delta (0 < delta < 0.5) at 573 K and its properties (lattice constant, magnetism, stability, and reduction ability) were studied ih detail. The activity of decomposing CO2 with oxygen-deficient magnetite of different sizes were compared and the effects of degree of oxygen-deficiency, reaction time, and temperature on the activity of the decomposing CO2 into carbon with oxygen-deficient magnetite were investigated. It is found that oxygen in the CO2 was incorporated in the form of O2- into oxygen-deficient magnetite and CO2 was reduced to carbon, at the same time Fe3O4-delta converted into stoichiometric Fe3O4. The smaller the particle size of magnetite is, the larger the oxygen-deficient degree is, the higher the reaction temperature is, and the higher the activity of decomposing CO2 is. (C) 2000 Elsevier Science S.A. All rights reserved.
语种英语
WOS记录号WOS:000084492100007
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被引频次:40[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/321008/138687
专题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, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Jilin Univ, Dept Chem, Changchun 130023, Peoples R China
3.Chinese Acad Sci, Shanxi Inst Coal Chem, Taiyuan 030001, Peoples R China
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Zhang, CL,Li, S,Wang, LJ,et al. Studies on the decomposition of carbon dioxide into carbon with oxygen-deficient magnetite I. Preparation, characterization of magnetite, and its activity of decomposing carbon dioxide[J]. MATERIALS CHEMISTRY AND PHYSICS,2000,62(1):44-51.
APA Zhang, CL,Li, S,Wang, LJ,Wu, TH,&Peng, SY.(2000).Studies on the decomposition of carbon dioxide into carbon with oxygen-deficient magnetite I. Preparation, characterization of magnetite, and its activity of decomposing carbon dioxide.MATERIALS CHEMISTRY AND PHYSICS,62(1),44-51.
MLA Zhang, CL,et al."Studies on the decomposition of carbon dioxide into carbon with oxygen-deficient magnetite I. Preparation, characterization of magnetite, and its activity of decomposing carbon dioxide".MATERIALS CHEMISTRY AND PHYSICS 62.1(2000):44-51.
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