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A Facile Peroxo-Precursor Synthesis Method and Structure Evolution of Large Specific Surface Area Mesoporous BaSnO3
Huang, Chuande1,2; Wang, Xiaodong1; Shi, Quan1; Liu, Xin1; Zhang, Yan3; Huang, Fei1,2; Zhang, Tao1
2015-04-20
Source PublicationINORGANIC CHEMISTRY
Volume54Issue:8Pages:4002-4010
Abstract

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.

SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1021/acs.inorgchem.5b00269
WOS KeywordPEROVSKITE-TYPE BASNO3 ; TEMPERATURE SPECIFIC-HEAT ; SENSITIZED SOLAR-CELLS ; BARIUM STANNATE ; GAS SENSOR ; EXHAUST-GAS ; THIN-FILMS ; POWDERS ; NANOPARTICLES ; SNO2
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Inorganic & Nuclear
WOS IDWOS:000353429500036
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/6487
Collection膜分离与催化团队
Affiliation1.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
GB/T 7714
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.
APA Huang, Chuande.,Wang, Xiaodong.,Shi, Quan.,Liu, Xin.,Zhang, Yan.,...&Zhang, Tao.(2015).A Facile Peroxo-Precursor Synthesis Method and Structure Evolution of Large Specific Surface Area Mesoporous BaSnO3.INORGANIC CHEMISTRY,54(8),4002-4010.
MLA Huang, Chuande,et al."A Facile Peroxo-Precursor Synthesis Method and Structure Evolution of Large Specific Surface Area Mesoporous BaSnO3".INORGANIC CHEMISTRY 54.8(2015):4002-4010.
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