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Research on a new process of preparation for nano-SiO2 with high activity and mesopores
Zhang, RJ; Yang, K; Xiong, TY
Corresponding AuthorZhang, RJ(rjzhang@imr.ac.cn)
2004-05-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume20Issue:3Pages:353-356
AbstractNano-SiO2 with high activity and mesopores was prepared through sol-gel synthesis followed by low-temperature heat treatment and ball milling firstly in our experiments. TEM was performed to measure particle sizes. Nitrogen adsorption experiments were carried out to estimate specific surface area, porous distribution and porous ratio by BET and BJH methods. The content of Si-OH in SiO2 surface was calculated by analysis of the results of hydrogen-oxygen content mensuration (HOCM). As a result, appropriate heat treatment system and ball milling time are important to preparation for nano-SiO2 with high activity and mesopores, which are 5similar to50 nm particles, 5similar to6 nm average aperture, 85%similar to93% porous ratio, and 51%similar to55% Si-OH content in surface. Nano-SiO2 with that structure has high surface energy and activity. This process, which has simple facilities and operation rules, is a new way of preparation for nano-SiO2 with high activity and mesopores.
Keywordheat treatment ball milling mesopores nano-SiO2
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000221826900030
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82441
Collection中国科学院金属研究所
Corresponding AuthorZhang, RJ
AffiliationChinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhang, RJ,Yang, K,Xiong, TY. Research on a new process of preparation for nano-SiO2 with high activity and mesopores[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2004,20(3):353-356.
APA Zhang, RJ,Yang, K,&Xiong, TY.(2004).Research on a new process of preparation for nano-SiO2 with high activity and mesopores.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,20(3),353-356.
MLA Zhang, RJ,et al."Research on a new process of preparation for nano-SiO2 with high activity and mesopores".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 20.3(2004):353-356.
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