Chemical storage of hydrogen in few-layer graphene.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 21282617.
- Also identified by DOI 10.1073/pnas.1019542108 and PMC identifier 3041143.
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Abstract
Birch reduction of few-layer graphene samples gives rise to hydrogenated samples containing up to 5 wt % of hydrogen. Spectroscopic studies reveal the presence of sp(3) C-H bonds in the hydrogenated graphenes. They, however, decompose readily on heating to 500 °C or on irradiation with UV or laser radiation releasing all the hydrogen, thereby demonstrating the possible use of few-layer graphene for chemical storage of hydrogen. First-principles calculations throw light on the mechanism of dehydrogenation that appears to involve a significant reconstruction and relaxation of the lattice.
Medical subject headings
- Graphite
- Hydrogen
- Nanostructures
- Nanotechnology