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题名: A Facile Peroxo-Precursor Synthesis Method and Structure Evolution of Large Specific Surface Area Mesoporous BaSnO3
作者: Huang, Chuande1, 2;  Wang, Xiaodong1;  Shi, Quan1;  Liu, Xin1;  Zhang, Yan3;  Huang, Fei1, 2;  Zhang, Tao1
刊名: INORGANIC CHEMISTRY
发表日期: 2015-04-20
DOI: 10.1021/acs.inorgchem.5b00269
卷: 54, 期:8, 页:4002-4010
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Inorganic & Nuclear
研究领域[WOS]: Chemistry
英文摘要: In this paper, we propose a facile and efficient strategy for synthesizing mesoporous BaSnO3 with a surface area as large as 67 m(2)/g using a peroxo-precursor decomposition procedure. As far as we know, this is the largest surface area reported in literature for BaSnO3 materials and may have a potential to greatly promote the technological applications of this kind of functional material in the area of chemical sensors, NOx storage, and dye-sensitized solar cells. The structure evolution of the mesoporous BaSnO3 from the precursor was followed using a series of techniques. Infrared analysis indicates large amount of protons and peroxo ligands are contained in the peroxo-precursor. Although the crystal structure of the precursor appears cubic according to the analysis of X-ray diffraction data, Raman and Mossbauer spectroscopy results show that the Sn atom is offset from the center of [SnO6] octahedron. After calcination at different temperatures, the precursor gradually transforms into BaSnO3 by release of water and oxygen, and the distortion degree of [SnO6] octahedral decreases. However, a number of oxygen vacancies are generated in the calcined samples, which are further confirmed by the physical property measurement system, and they would lower the local symmetry to some content. The concentration of the oxygen vacancies reduces simultaneously as the calcination temperature increases, and their contributions to the total heat capacity of the sample are calculated based on theoretical analysis of heat capacity data in the temperature region below 10 K.
关键词[WOS]: PEROVSKITE-TYPE BASNO3 ;  TEMPERATURE SPECIFIC-HEAT ;  SENSITIZED SOLAR-CELLS ;  BARIUM STANNATE ;  GAS SENSOR ;  EXHAUST-GAS ;  THIN-FILMS ;  POWDERS ;  NANOPARTICLES ;  SNO2
语种: 英语
WOS记录号: WOS:000353429500036
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146236
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, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China

Recommended Citation:
Huang, Chuande,Wang, Xiaodong,Shi, Quan,et al. A Facile Peroxo-Precursor Synthesis Method and Structure Evolution of Large Specific Surface Area Mesoporous BaSnO3[J]. INORGANIC CHEMISTRY,2015,54(8):4002-4010.
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