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Static And Dynamic Hydrogen Adsorption On Pt/Ac And Mof-5, Andrew Chien, Steven Chuang
Static And Dynamic Hydrogen Adsorption On Pt/Ac And Mof-5, Andrew Chien, Steven Chuang
Steven S.C. Chuang
Hydrogen adsorption has been studied by static and dynamic methods on activated carbon (AC), platinum/activated carbon (Pt/AC), metal organic frameworks (MOF-5), and Pt/AC_MOF-5.The static method showed that all of adsorbents used in this study exhibited a Langmuir (type I) adsorption isotherm at 77 K and a linear function of hydrogen partial pressure at 298 K. The dynamic method produced breakthrough curves, indicating (i) slow rate of hydrogen diffusion in the densely packed activated carbon and Pt/AC beds and (ii) high rate of hydrogen diffusion in the loosely packed bed with large MOF-5 crystallites. Temperature variable adsorption resulted in the higher …