Preparation and characterization of strong-lightweight porous silica spheres in millimeter scale
文献类型：期刊论文
| 作者 | Li Wa1; Li Fengyun2; Shi Zhisheng3; Huang Jue2; Cai Qiang1; Zhang Wei4 |
| 刊名 | Chemical journal of chinese universities-chinese
 |
| 出版日期 | 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 |
| WOS记录号 | WOS:000361926800001 |
| 出版者 | HIGHER EDUCATION PRESS |
| URI标识 | http://www.irgrid.ac.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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来源：高能物理研究所
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