Hydrogen adsorption on porous silica

被引：36

作者：

Sheppard, D. A. ^{[1
]}

Buckley, C. E. ^{[1
]}

机构：

[1] Curtin Univ Technol, Dept Imaging & Appl Phys, Perth, WA 6001, Australia

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 06期

关键词：

hydrogen storage material; porous material; silica; MCM-41; hydrogen; zinc; doping;

D O I：

10.1016/j.ijhydene.2007.12.021

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 number of MCM-41 samples were produced with different ageing times and zinc dopant levels. Hydrogen adsorption experiments performed at 77 K on pure MCM-41 samples showed a maximum excess wt% uptake of 2.01%. Samples were doped with Zn in the Si:Zn ratio of 50:1, 25:1 and 10:1. These samples showed an increase in d-spacing in their XRD patterns, suggestive of Zn incorporation into the structure but resulting in a decrease in long range pore ordering and surface area with increasing Zn content. Two of the three doped samples showed an increase in H-2 adsorbed per unit surface area suggestive of increased interaction strength. However, definitive confirmation is difficult due to degradation of the pore structure and surface area. Adsorption at room temperature was minimal, being 0.1 wt% or below. (c) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：1688 / 1692

页数：5

共 28 条

[1] EFFECT OF SURFACE-ACIDITY OF ACTIVATED CARBON ON HYDROGEN STORAGE [J].

AGARWAL, RK ;

NOH, JS ;

SCHWARZ, JA ;

DAVINI, P .

CARBON, 1987, 25 (02) :219-226

[2] Theoretical study of the molecular hydrogen adsorption and dissociation on different Zn(II) active sites of zeolites [J].

Barbosa, LAMM ;

Zhidomirov, GM ;

van Santen, RA .

CATALYSIS LETTERS, 2001, 77 (1-3) :55-62

[3] A NEW FAMILY OF MESOPOROUS MOLECULAR-SIEVES PREPARED WITH LIQUID-CRYSTAL TEMPLATES [J].

BECK, JS ;

VARTULI, JC ;

ROTH, WJ ;

LEONOWICZ, ME ;

KRESGE, CT ;

SCHMITT, KD ;

CHU, CTW ;

OLSON, DH ;

SHEPPARD, EW ;

MCCULLEN, SB ;

HIGGINS, JB ;

SCHLENKER, JL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (27) :10834-10843

[4] Determination of the adsorption isotherms of hydrogen on activated carbons above the Critical Temperature of the adsorbate over wide temperature and pressure ranges [J].

Bénard, P ;

Chahine, R .

LANGMUIR, 2001, 17 (06) :1950-1955

[5] Optimum conditions for adsorptive storage [J].

Bhatia, SK ;

Myers, AL .

LANGMUIR, 2006, 22 (04) :1688-1700

[6] Effect of post-synthesis hydrothermal treatments on the adsorptive volume of surfactant-templated mesostructures [J].

Biz, S ;

White, MG .

MICROPOROUS AND MESOPOROUS MATERIALS, 2000, 40 (1-3) :159-171

[7] Hydrogen storage in a microporous metal-organic framework with exposed Mn2+ coordination sites [J].

Dinca, Mircea ;

Dailly, Anne ;

Liu, Yun ;

Brown, Craig M. ;

Neumann, Dan. A. ;

Long, Jeffrey R. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (51) :16876-16883

[8] Further improvements in the long-range order of MCM-41 materials [J].

Edler, KJ ;

White, JW .

CHEMISTRY OF MATERIALS, 1997, 9 (05) :1226-1233

[9] Adsorption of molecular hydrogen on coordinatively unsaturated Ni(II) sites in a nanoporous hybrid material [J].

Forster, Paul M. ;

Eckert, Juergen ;

Heiken, Brandon D. ;

Parise, John B. ;

Yoon, Ji Woong ;

Jhung, Sung Hwa ;

Chang, Jong-San ;

Cheetham, Anthony K. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (51) :16846-16850

[10] Hydrogen adsorption in nanoporous Nickel(II) phosphates [J].

Forster, PM ;

Eckert, J ;

Chang, JS ;

Park, SE ;

Férey, G ;

Cheetham, AK .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (05) :1309-1312

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