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题名: Low temperature synthesis of perovskite oxide using the adsorption properties of cellulose
作者: Shao, ZP;  Xiong, GX;  Ren, YJ;  Cong, Y;  Yang, WS
刊名: JOURNAL OF MATERIALS SCIENCE
发表日期: 2000-11-01
卷: 35, 期:22, 页:5639-5644
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 504
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Multidisciplinary
研究领域[WOS]: Materials Science
英文摘要: La-0.8Sr(0).2CoO(3) (LSCO) oxide powder was prepared using the adsorption properties of cellulose. The preparation process was studied by XRD, FTIR, TG-DTA and CO2-TPD techniques. The results of XRD, IR and TG-DTA testified that cellulose could successfully reserve the homogeneity of the solution system to the solid precursor. During the early stage of pyrolysis, cellulose was partially oxidized, and some COO- groups appeared in its texture, which were then complexed with the adsorbed metal ions, and effectively suppressed the aggregation of metal ions. Formation of a pure perovskite and the properties of the powder resulted were found to be significantly influenced by the cellulose to metal nitrate ratio. Also the properties of the resulting powder were greatly influenced by the calcination conditions. If the produced carbon dioxide could not be eluted in time, carbonate would be formed in the bulk. Hence, a high calcination temperature (> 800 degreesC) was needed to acquire a pure phase LSCO. At optimized conditions, nano-crystal LSCO could be obtained at as low as 500 degreesC.
关键词[WOS]: CATALYTIC PROPERTIES ;  MIXED OXIDES ;  PRECURSORS ;  TRANSITION ;  POWDERS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000165090300018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/85177
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, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Shao, ZP,Xiong, GX,Ren, YJ,et al. Low temperature synthesis of perovskite oxide using the adsorption properties of cellulose[J]. JOURNAL OF MATERIALS SCIENCE,2000,35(22):5639-5644.
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