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Heat of Adsorption for Hydrogen in Microporous High‐Surface‐Area Materials
Author(s) -
Schmitz Barbara,
Müller Ulrich,
Trukhan Natalia,
Schubert Markus,
Férey Gérard,
Hirscher Michael
Publication year - 2008
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200800463
Subject(s) - adsorption , microporous material , hydrogen , benzene , metal organic framework , activated carbon , materials science , carbon fibers , hydrogen storage , atmospheric temperature range , inorganic chemistry , chemistry , chemical engineering , thermodynamics , organic chemistry , composite material , physics , composite number , engineering
Pore size matters: The heat of adsorption for hydrogen is determined over a wide range of surface coverages for activated carbon and several metal–organic frameworks. Heat determination is based on hydrogen adsorption measurements performed at temperatures between 77 and 296 K (see figure, BTC=benzene‐1,3,5‐tricarboxylate). The materials with smaller cavities show a higher heat of adsorption for hydrogen.