Hydrogen storage in high surface area graphene scaffolds
2015 (English)In: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 51, no 83, 15280-15283 p.Article in journal (Refereed) Published
Using an optimized KOH activation procedure we prepared highly porous graphene scaffold materials with SSA values up to 3400 m2 g−1 and a pore volume up to 2.2 cm3 g−1, which are among the highest for carbon materials. Hydrogen uptake of activated graphene samples was evaluated in a broad temperature interval (77–296 K). After additional activation by hydrogen annealing the maximal excess H2 uptake of 7.5 wt% was obtained at 77 K. A hydrogen storage value as high as 4 wt% was observed already at 193 K (120 bar H2), a temperature of solid CO2, which can be easily maintained using common industrial refrigeration methods.
Place, publisher, year, edition, pages
Royal Society of Chemistry, 2015. Vol. 51, no 83, 15280-15283 p.
graphene hydrogen storage adsorption
Condensed Matter Physics
Research subject Physical Chemistry
IdentifiersURN: urn:nbn:se:umu:diva-109475DOI: 10.1039/c5cc05474eOAI: oai:DiVA.org:umu-109475DiVA: diva2:857221