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Sulfur‐Functionalized Graphene Oxide by Epoxide Ring‐Opening
Author(s) -
Thomas Helen R.,
Marsden Alexander J.,
Walker Marc,
Wilson Neil R.,
Rourke Jonathan P.
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201404002
Subject(s) - epoxide , graphene , oxide , surface modification , thiol , chemistry , sulfur , thermal stability , aqueous solution , bromide , ring (chemistry) , polymer chemistry , combinatorial chemistry , inorganic chemistry , materials science , organic chemistry , nanotechnology , catalysis
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.