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Porous polymeric materials for hydrogen storage

United States Patent

December 13, 2011
View the Complete Patent at the US Patent & Trademark Office
Porous polymers, tribenzohexazatriphenylene, poly-9,9'-spirobifluorene, poly-tetraphenyl methane and their derivatives for storage of H.sub.2 prepared through a chemical synthesis method. The porous polymers have high specific surface area and narrow pore size distribution. Hydrogen uptake measurements conducted for these polymers determined a higher hydrogen storage capacity at the ambient temperature over that of the benchmark materials. The method of preparing such polymers, includes oxidatively activating solids by CO.sub.2/steam oxidation and supercritical water treatment.
Yu; Luping (Hoffman Estates, IL), Liu; Di-Jia (Naperville, IL), Yuan; Shengwen (Chicago, IL), Yang; Junbing (Westmont, IL)
UChicago Argonne, LLC (Chicago, IL)
12/ 215,653
June 27, 2008
GOVERNMENT INTEREST The United States Government has certain rights in this invention pursuant to Contract No. DE-AC02-06CHI1357 between the United States Department of Energy and UChicago Argonne, LLC as operator of Argonne National Laboratories.