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Title: | Chemical storage of hydrogen in few-layer graphene |
Authors: | Subrahmanyam, K S Kumar, Prashant Maitra, Urmimala Govindaraj, A Hembram, K P S S Waghmare, Umesh V Rao, C N R |
Keywords: | hydrogen storage reversible hydrogenation Generalized Gradient Approximation Reversible Hydrogenation Carbon Nanotubes Reduction Metals |
Issue Date: | 15-Feb-2011 |
Publisher: | National Academy of Sciences |
Citation: | Proceedings Of The National Academy Of Sciences Of The United States Of America 108(7), 2674-2677 (2011) |
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 degrees 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. |
Description: | Restricted Access |
URI: | https://libjncir.jncasr.ac.in/xmlui/10572/598 |
Other Identifiers: | 0027-8424 |
Appears in Collections: | Research Papers (Prof. C.N.R. Rao) |
Files in This Item:
File | Description | Size | Format | |
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sl.no34.2011. Proceedings Of The National Academy Of Sciences Of The United States Of America 108(7), 2674-2677 ().pdf Restricted Access | 782.7 kB | Adobe PDF | View/Open Request a copy |
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