Small-Angle X-Ray Scattering Studies of Carboxyl Functionalized SBA-15 Type Mesoporous Molecular Sieves

	Small-Angle X-Ray Scattering Studies of Carboxyl Functionalized SBA-15 Type Mesoporous Molecular Sieves
	Wu, BH; Zhang, SC; Tang, T; Xu, Y; Liu, Y; Wu, ZH; Wu ZH(吴忠华)
刊名	ACTA PHYSICO-CHIMICA SINICA
	2010
卷号	26 期号:8 页码:2217-2223
关键词	SBA-15 SAXS Mesoporous Correlation function Chord length distribution
通讯作者	[Wu Bao-Hu ; Zhang Shu-Cui ; Tang Tao ; Xu Yao] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China ; [Liu Yi] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201800, Peoples R China ; [Wu Zhong-Hua] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China ; [Wu Bao-Hu ; Zhang Shu-Cui ; Tang Tao] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
英文摘要	Carboxyl functionalized SBA-15 type mesoporous molecular sieves synthesized via co-condensation process were characterized by small-angle X-ray scattering (SAXS). Correlation function and chord length distribution theory were used to analyze the pore structure, interface, and periodic information. The pore structure parameters calculated from chord length distribution theory were compared with the Barrett-Joyner-Halenda (BJH) model calculation results, which are based on conventional nitrogen adsorption-desorption tests. The results showed that the samples preserved the structure order of their mesostructures since no significant degradation occurred with an increase in carboxyl group loading, except for the samples with a high carboxyl loading of 50% (molar fraction, versus inorganic silica source). There are no significant deviations in the porod curves of all of the samples. The carboxyl groups may become internally embedded within the framework walls of the mesostructure, as opposed to being externally linked to the pore channels via condensation on surface Si-OH sites. Individual pore size and pore wall thickness distribution data were obtained from the chord length distribution theory calculation without modeling. The pore wall thickness distribution data, which are inaccessible by othermethod, are very helpful for a further understanding of the mesostructure materials.
学科主题	Chemistry
类目[WOS]	Chemistry, Physical
研究领域[WOS]	Chemistry
原文出处	SCI
语种	英语
WOS记录号	WOS:000280259900025
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/239691]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Wu, BH,Zhang, SC,Tang, T,et al. Small-Angle X-Ray Scattering Studies of Carboxyl Functionalized SBA-15 Type Mesoporous Molecular Sieves[J]. ACTA PHYSICO-CHIMICA SINICA,2010,26(8):2217-2223.
APA	Wu, BH.,Zhang, SC.,Tang, T.,Xu, Y.,Liu, Y.,...&吴忠华.(2010).Small-Angle X-Ray Scattering Studies of Carboxyl Functionalized SBA-15 Type Mesoporous Molecular Sieves.ACTA PHYSICO-CHIMICA SINICA,26(8),2217-2223.
MLA	Wu, BH,et al."Small-Angle X-Ray Scattering Studies of Carboxyl Functionalized SBA-15 Type Mesoporous Molecular Sieves".ACTA PHYSICO-CHIMICA SINICA 26.8(2010):2217-2223.