Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 53, Issue 29, Pages 7613-7618Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201404002
Keywords
epoxide opening; gold nanoparticles; graphene; graphene oxide; thiols
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Funding
- EPSRC
- Advantage West Midlands - European Regional Development Fund
- Engineering and Physical Sciences Research Council [1102578] Funding Source: researchfish
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The treatment of graphene oxide (GO) with potassium thioacetate followed by an aqueous work-up yields a new material via the ring-opening of the epoxide groups. The new material is a thiol-functionalized GO (GO-SH) which is able to undergo further functionalization. Reaction with butyl bromide gives another new material, GO-SBu, which shows significantly enhanced thermal stability compared to both GO and GO-SH. The thiol-functionalized GO material showed a high affinity for gold, as demonstrated by the selective deposition of a high density of gold nanoparticles.
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