Novel experimental methods for assessment of hydrogen storage capacity and modelling of sorption in Cu-BTC

被引：10
作者：
Khvostikova, O. [1 ,3 ]
Assfour, B. [2 ]
Seifert, G. [2 ]
Hermann, H. [1 ]
Horst, A. [1 ]
Ehrenberg, H. [1 ]
机构：
[1] IFW Dresden, Inst Complex Mat, D-01171 Dresden, Germany
[2] Tech Univ Dresden, Inst Phys Chem, D-01062 Dresden, Germany
[3] Tech Univ Dresden, Inst Werkstoffwissensch, D-01069 Dresden, Germany
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2010年 / 35卷 / 20期
关键词：
Hydrogen storage; EOS; MOFs; METAL-ORGANIC FRAMEWORKS; MONTE-CARLO SIMULATIONS; HIGH-SURFACE-AREA; CARBON NANOTUBES; ADSORPTION; SEPARATION; PRESSURE; CO2; CU-3(1,3,5-BENZENETRICARBOXYLATE)(2); CU-3(BTC)(2);
D O I：
10.1016/j.ijhydene.2010.07.089
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：
Novel experimental procedures for hydrogen adsorption studies are presented. The methods provide an important advantage: pure material sorption behaviour can be directly determined without the use of equations of state (EOS) at low temperatures. The storage properties of Cu-BTC [Cu(3)(BTC)(2), BTC - 1,3,5-benzenetricarboxylate] were investigated under different thermodynamic conditions. The maximum hydrogen uptake of 4.6 wt% was observed at 25 K. We compared the results obtained in this work with previously reported experimental data to prove the validity of the novel methods for the hydrogen sorption measurements. The experimental data of the present work show a good agreement with the results reported in the literature. Additionally, the modelling of the hydrogen sorption processes in Cu-BTC was carried out. The simulations were performed in the form of isotherms and isobars. Fairly good agreement with experimental data has been achieved. Uncertainties in MOF-H(2) interactions are most likely the major reasons for the remaining difference between simulations and experiments. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：11042 / 11051
页数：10
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