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Thermodynamic trends in the uptake capacity of porous adsorbents on methane and hydrogen
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10.1063/1.2918984
/content/aip/journal/apl/92/20/10.1063/1.2918984
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/20/10.1063/1.2918984
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Transmission electron micrograph photos of AC (type Maxsorb III) at nanoscale magnifications. (b) How adsorbate molecules huddle in adsorbent pore for any pressure , temperature , and surface coverage .

Image of FIG. 2.
FIG. 2.

SSA as a function of the enthalpy of adsorption for different carbonaceous materials. Here, it is found that Maxsorb III is the best carbon based porous material for methane storage until now. Here, , , and for the present model.

Image of FIG. 3.
FIG. 3.

The surface energy distribution function is plotted against for the least adsorption energy of 2RT. The best porous carbonaceous material for methane adsorption will approach . The parameters indicate the surface energy factor.

Image of FIG. 4.
FIG. 4.

A plot of SSA and for (i) ACs and carbon and (ii) SWNTs and systems. For best fitting, the present model can be modified by ; accounts for the surface energy factor and is the heterogeneity constant. In this analysis, .

Image of FIG. 5.
FIG. 5.

The surface energy distribution function as a function of for the least adsorption energy of , which equals the enthalpy of evaporation of at normal boiling point for different surface energy distribution factors. Hence, for different systems and for different SWNTs and systems.

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/content/aip/journal/apl/92/20/10.1063/1.2918984
2008-05-22
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Thermodynamic trends in the uptake capacity of porous adsorbents on methane and hydrogen
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/20/10.1063/1.2918984
10.1063/1.2918984
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