Preliminary results of hydrogen adsorption and SAXS modelling of mesoporous silica: MCM-41

被引：20

作者：

Sheppard, DA ^{[1
]}

Maitland, CF ^{[1
]}

Buckley, CE ^{[1
]}

机构：

[1] Curtin Univ Technol, Dept Appl Phys, Perth, WA, Australia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2005年 / 404卷

基金：

澳大利亚研究理事会;

关键词：

hydrogen storage material; amorphous materials;

D O I：

10.1016/j.jallcom.2004.09.089

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A sample of MCM-41 at 77 K was shown to reversibly absorb 1.6 excess wt% of hydrogen at similar to 3.5 MPa. Though the excess hydrogen adsorption peaked, the total gravimetric wt% of hydrogen adsorption continued to increase and reached a value of 2.7 wt% by similar to 4.5 MPa. The correlation function has been used here for the first time in an attempt to determine the average pore size, distance between the pores and an estimate of the wall thickness by modelling the entire small angle X-ray scattering (SAXS) curve of the MCM-41 sample. At this stage of the model development, only a lower limit on the average pore size can be determined. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：405 / 408

页数：4

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