微孔金属有机框架中异常的H2饱和吸收量。
Exceptional H2 saturation uptake in microporous metal-organic frameworks.
作者信息
Wong-Foy Antek G, Matzger Adam J, Yaghi Omar M
机构信息
Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, USA.
出版信息
J Am Chem Soc. 2006 Mar 22;128(11):3494-5. doi: 10.1021/ja058213h.
Saturation H2 uptake in a series of microporous metal-organic frameworks (MOFs) has been measured at 77 K. Saturation pressures vary between 25 and 80 bar across the series, with MOF-177 showing the highest uptake on a gravimetric basis (7.5 wt %) and IRMOF-20 showing the highest uptake on a volumetric basis at 34 g/L. These results demonstrate that maximum H2 storage capacity in MOFs correlates well to surface area, and that feasible volumetric uptakes can be realized even in highly porous materials.
在77 K下测量了一系列微孔金属有机框架（MOF）中氢气的饱和吸附量。该系列中饱和压力在25至80巴之间变化，其中MOF-177在重量基础上显示出最高吸附量（7.5 wt%），而IRMOF-20在体积基础上显示出最高吸附量，为34 g/L。这些结果表明，MOF中氢气的最大存储容量与表面积密切相关，并且即使在高度多孔的材料中也可以实现可行的体积吸附量。
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