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In Situ Characterization and Analysis on the Thermal Transformation of Boehmite
Su Qiu-Cheng1,2; Chen Pei-Li1; Zhang Shao-Hong1; Li Xin-Jun1; Ma Long-Long1
2012-11-01
Source PublicationCHINESE JOURNAL OF INORGANIC CHEMISTRY
Volume28Issue:11Pages:2280-2284
Abstract

Boehmite (AlOOH) was synthesized by sol-gel method. The physicochemical process and phase transformation of AlOOH during thermal treatment were investigated by the simultaneous thermogravimetric analysis, N-2 adsorption-desorption and in situ X-ray diffraction techniques. Upon heating, AlOOH lost the physicsorbed water first, the chemisorbed water was desorbed at 210 degrees C, and the dehydroxylation was occurred at 310 degrees C. In the process, since the water was gradually lost, the BET surface area and total pore volume increased. The orthorhombic AlOOH transformed to the cubic crystal gamma-Al2O3 at 400 degrees C, the tetragonal d-Al2O3 appeared after 900 degrees C, it transformed to monoclinic theta-Al2O3 at 1 060 degrees T, and it turned into rhombic hexahedron alpha-Al2O3 at 1 200 degrees C.

SubtypeArticle
KeywordAlooh Thermal Transformation In Situ Xrd Simultaneous Thermogravimetric Analysis
WOS HeadingsScience & Technology ; Physical Sciences
WOS Subject ExtendedChemistry
WOS KeywordHYDROTHERMAL SYNTHESIS ; PHASE-TRANSFORMATION ; SURFACE-PROPERTIES ; HIGH-TEMPERATURE ; GAMMA-ALOOH ; XRD ; ALUMINA ; GAMMA-AL2O3
Indexed BySCI
Language中文
WOS SubjectChemistry, Inorganic & Nuclear
WOS IDWOS:000311472000002
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Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10140
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Su Qiu-Cheng,Chen Pei-Li,Zhang Shao-Hong,et al. In Situ Characterization and Analysis on the Thermal Transformation of Boehmite[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2012,28(11):2280-2284.
APA Su Qiu-Cheng,Chen Pei-Li,Zhang Shao-Hong,Li Xin-Jun,&Ma Long-Long.(2012).In Situ Characterization and Analysis on the Thermal Transformation of Boehmite.CHINESE JOURNAL OF INORGANIC CHEMISTRY,28(11),2280-2284.
MLA Su Qiu-Cheng,et al."In Situ Characterization and Analysis on the Thermal Transformation of Boehmite".CHINESE JOURNAL OF INORGANIC CHEMISTRY 28.11(2012):2280-2284.
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