Thermodynamic trends in the uptake capacity of porous adsorbents on methane and hydrogen
Chakraborty, A. Saha, B.B. Koyama, S. Ng, K.C. Yoon, S.-H.
Chakraborty, A.
Saha, B.B.
Koyama, S.
Yoon, S.-H.
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Abstract
A considerable progress has been made for the development of novel porous materials with controlled architectures and surface treatment. An important feature of these adsorbent materials is the maximization of adsorption capacity at Henry's region. A thermodynamic framework is presented to capture the relationship between the pore specific surface areas with the enthalpy of adsorption. By using this approach, the scientific community can be guided to the development of advanced porous adsorbent and adsorbate pairs. The adsorbents with the highest porous surface areas tend to possess lower isosteric heat of adsorption when storing the methane and hydrogen gases at room temperature. © 2008 American Institute of Physics.
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Source Title
Applied Physics Letters
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Date
2008
DOI
10.1063/1.2918984
Type
Article