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Hydrogen storage in high surface area graphene scaffolds
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Technische Universität Dresden, Theoretische Chemie, Bergstraße 66b, 01062 Dresden, Germany .
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2015 (English)In: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 51, no 83, 15280-15283 p.Article in journal (Refereed) Published
Abstract [en]

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.
Keyword [en]
graphene hydrogen storage adsorption
National Category
Condensed Matter Physics
Research subject
Physical Chemistry
Identifiers
URN: urn:nbn:se:umu:diva-109475DOI: 10.1039/c5cc05474eOAI: oai:DiVA.org:umu-109475DiVA: diva2:857221
Available from: 2015-09-28 Created: 2015-09-28 Last updated: 2017-12-01Bibliographically approved

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Klechikov, AlexeyMercier, GuillaumeSharifi, TivaTalyzin, Alexandr V.
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