High surface area nanoporous polymers for reversible hydrogen storage

Jonathan Germain, Jiri Hradil, Jean Frechet, Frantisek Svec*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

274 Scopus citations

Abstract

Hydrogen adsorption using a series of nanoporous synthetic polymers has been studied. Promising results were obtained during the screening of commercially available porous polymer beads; of the polymers considered, hypercrosslinked Hypersol-Macronet MN200 resin exhibited the highest adsorption capacity for hydrogen. This initial success triggered the development of our own high surface area hypercrosslinked materials. Subjecting gel-type and macroporous vinylbenzyl chloride-based precursors swollen in dichloroethane to a Friedel - Crafts reaction catalyzed by iron trichloride afforded beads with surface areas of 1 930 and 1 300 m 2/g, respectively, as calculated using the BET equation. The former polymer reversibly stores up to 1.5 wt % H 2 at a pressure of 0.12 MPa and a temperature of 77.3 K. The initial heat of adsorption of hydrogen molecules onto this polymer is 6.6 kJ/mol.

Original languageEnglish (US)
Pages (from-to)4430-4435
Number of pages6
JournalChemistry of Materials
Volume18
Issue number18
DOIs
StatePublished - Sep 5 2006

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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