Sulfur-Functionalized Graphene Oxide by Epoxide Ring-Opening
Sulfur-Functionalized Graphene Oxide by Epoxide Ring-Opening
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DOI：
10.1002/anie.201404002
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发表时间：
2014-07-14
影响因子：
16.6
通讯作者：
Rourke, Jonathan P.
中科院分区：
文献类型：
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作者：
Thomas, Helen R.;Marsden, Alexander J.;Rourke, Jonathan P.
用硫代乙酸钾处理氧化石墨烯（GO），然后进行水性后处理，通过环氧基团的开环产生新材料。该新材料是硫醇官能化的GO（GO-SH），能够进行进一步的官能化。与丁基溴反应得到另一种新材料GO-SBu，与GO和GO-SH相比，其显示出显著增强的热稳定性。硫醇官能化的GO材料显示出对金的高亲和力，如通过高密度金纳米颗粒的选择性沉积所证明的。
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.