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High Volumetric Hydrogen Storage Capacity using Interpenetrated Metal–Organic Frameworks
Author(s) -
BalderasXicohténcatl Rafael,
Schmieder Phillip,
Denysenko Dmytro,
Volkmer Dirk,
Hirscher Michael
Publication year - 2018
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201700608
Subject(s) - gravimetric analysis , hydrogen storage , metal organic framework , hydrogen , materials science , metal , chemical engineering , porosity , specific surface area , chemistry , composite material , metallurgy , organic chemistry , catalysis , adsorption , engineering
Metal–organic frameworks with extremely large specific surface areas can reach very high gravimetric hydrogen storage capacities. However, these ultra‐porous materials possess typically a very low density and, therefore, a poor volumetric hydrogen storage capacity. Here we study experimentally the influence of interpenetration on the volumetric and gravimetric hydrogen storage capacity by comparing two metal–organic frameworks of the MFU‐4 family, non‐interpenetrated MFU‐4 l and CFA‐7 with an interpenetrated structure. At 77 K the absolute volumetric hydrogen uptake of CFA‐7 is more than twice that of MFU‐4 l .