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The Effect of Thermal Treatment on the Hydrogen‐Storage Properties of PIM‐1
Author(s) -
Ramimoghadam Donya,
Boyd Sue E.,
Brown Christopher L.,
Mac A. Gray Evan,
Webb C. J.
Publication year - 2019
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.201900222
Subject(s) - hydrogen storage , hydrogen , sorption , annealing (glass) , polymer , condensation , bar (unit) , chemistry , chemical engineering , solid state , solid hydrogen , materials science , inorganic chemistry , organic chemistry , thermodynamics , adsorption , metallurgy , physics , meteorology , engineering
There has been recent interest in polymers of intrinsic microporosity (PIMs) for solid‐state hydrogen‐storage materials; however, the gas‐sorption properties and conditions for hydrogen uptake are relatively unexplored. PIM‐1 has been synthesised using the condensation reaction between 3,3,3,3‐tetramethyl‐1,1‐spirobisindane‐5,5,6,6‐tetraol and 2,3,5,6‐tetrafluorophthalonitrile as precursors. The synthesised PIM‐1 was annealed at different temperatures for varying times and then characterised for hydrogen uptake at both ambient and cryogenic temperatures. The excess hydrogen PCT isotherms have been measured to high pressure (320 bar) for the first time and the effect of different annealing conditions on the hydrogen capacity is reported.