Highly ordered supermicroporous silica

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	Highly ordered supermicroporous silica
	shuhhan@sdu.edu.cn; Han, SH; Hou, WG; Wang, RL; Sun, LX; Zhao, J; Wang, YS
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2007
卷号	111 期号:29 页码:10955-10958
ISSN号	1932-7447
英文摘要	Highly ordered supermicroporous silica (space group 2D-p6mm) was prepared using gemini surfactant [C8H17-N+(CH3)(2)-(CH2)(2)-N+(CH3)(2)-C8H17]center dot 2Br(-) (denoted C8-2-8) with a short spacer group (s = 2) as the structure-directing agent and sodium silicate as the precursor. The samples were characterized by small-angle X-ray diffraction, transmission electron microscopy, and N-2 adsorption-desorption. The results showed that the pore structure of the resulting silica belongs to the two-dimensional hexagonal structure (space group 2D-p6mm) with a pore size of ca. 1.40 nm (in the supermicroporous range). The high-quality supermicroporous silica was formed at a low molar ratio of C8-2-8 to sodium silicate (0.08:1), indicating that the ability of self-assembly of C8-2-8 is stronger than that of corresponding monovalent surfactants (single chain, single head group). For supermicroporous materials, the methods for calculating surface area and pore size are critically compared. The surface area was found to be about 1000 m(2)/g by the alpha(s) plot method. The pore size obtained with the HK model was in the range of 1.36-1.62 nm.
学科主题	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
URL标识	查看原文
资助项目	LMB
WOS记录号	WOS:000248121600030
公开日期	2011-07-03
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/4920]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
通讯作者	shuhhan@sdu.edu.cn
推荐引用方式 GB/T 7714	shuhhan@sdu.edu.cn,Han, SH,Hou, WG,et al. Highly ordered supermicroporous silica[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2007,111(29):10955-10958.
APA	shuhhan@sdu.edu.cn.,Han, SH.,Hou, WG.,Wang, RL.,Sun, LX.,...&Wang, YS.(2007).Highly ordered supermicroporous silica.JOURNAL OF PHYSICAL CHEMISTRY C,111(29),10955-10958.
MLA	shuhhan@sdu.edu.cn,et al."Highly ordered supermicroporous silica".JOURNAL OF PHYSICAL CHEMISTRY C 111.29(2007):10955-10958.