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	Preparation and characterization of strong-lightweight porous silica spheres in millimeter scale
	Li Wa1; Li Fengyun2; Shi Zhisheng3; Huang Jue2; Cai Qiang1; Zhang Wei4
刊名	Chemical journal of chinese universities-chinese
	2015-09-10
卷号	36期号:9页码:1655-1660
关键词	Porous silica spheres in millimeter scale Strong-lightweight silica Liquid paraffin/water system
ISSN号	0251-0790
DOI	10.7503/cjcu20150246
通讯作者	Cai qiang(caiqiang@tsinghua.edu.cn)
英文摘要	Strong-lightweight porous silica spheres in millimeter scale were synthesized using cationic surfactant hexadecyltrimethyl ammonium bromide (ctab). and nonionic surfactant f127 as templates, tetraethyl orthosilicate(teos) as silica source in liquid paraffin/water (w/o) system via self-assembly. the samples were characterized by means of laser particle size analyzer, scanning electron microscopy(sem), transmission electron microscopy(tem), nitrogen adsorption-desorption measurments and nanoindentor. the results indicate that spheres with diameter of (1. 4 +/- 0. 2) mm are obtained, the hierarchical pores with the size from 2 nm to tens of nanometers are within the samples, and the bet surface area of the sample is 498. 00 m(2)/g. in addition, the bulk density of the sample is just 0. 44 g/cm(3), but its hardness is up to 549. 00 mpa and elasticity modulus sums up to 9. 19 gpa.
WOS关键词	MESOPOROUS SILICA ; SURFACTANT ; ADSORPTION ; NANOPARTICLES ; TEMPLATE
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
语种	英语
出版者	HIGHER EDUCATION PRESS
WOS记录号	WOS:000361926800001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2176494
专题	高能物理研究所
通讯作者	Cai Qiang
作者单位	1.Tsinghua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China 2.Tsinghua Univ, Grad Sch Shenzhen, Adv Mat Inst, Shenzhen 518000, Peoples R China 3.Univ Sci & Technol Beijing, Dept Mat Sci & Engn, Beijing 100083, Peoples R China 4.Natl Ctr Nanosci & Technol, CAS Key Lab Biol Effects Nanomat & Nanosafety, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li Wa,Li Fengyun,Shi Zhisheng,et al. Preparation and characterization of strong-lightweight porous silica spheres in millimeter scale[J]. Chemical journal of chinese universities-chinese,2015,36(9):1655-1660.
APA	Li Wa,Li Fengyun,Shi Zhisheng,Huang Jue,Cai Qiang,&Zhang Wei.(2015).Preparation and characterization of strong-lightweight porous silica spheres in millimeter scale.Chemical journal of chinese universities-chinese,36(9),1655-1660.
MLA	Li Wa,et al."Preparation and characterization of strong-lightweight porous silica spheres in millimeter scale".Chemical journal of chinese universities-chinese 36.9(2015):1655-1660.

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