Hydrogenation of Graphene by Reaction at High Pressure and High Temperature
Hydrogenation of Graphene by Reaction at High Pressure and High Temperature
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DOI：
10.1021/acsnano.5b02712
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发表时间：
2015-08-01
期刊：
影响因子：
17.1
通讯作者：
Proctor, John E.
中科院分区：
文献类型：
--
作者：
Smith, Dean;Howie, Ross T.;Proctor, John E.
氢和纯sp（2）键合的石墨烯之间的化学反应形成石墨烯的纯sp（3）键合的类似物graphane，通过打开在石墨烯中应用常规化学方法的途径，潜在地允许合成更广泛种类的新型二维材料。石墨烯目前通过在真空中暴露于原子氢来氢化，但是这些方法没有产生石墨烯到石墨烷的完全转化，即使石墨烯在晶格的两侧暴露于氢。通过在金刚石压砧单元中将石墨烯在分子氢中在压缩下加热到适度的高压（2.6-5.0 GPa），我们能够使石墨烯与氢反应，并提出了一种方法，由此可以首次合成完全氢化的石墨烷。
The chemical reaction between hydrogen and purely sp(2)-bonded graphene to form graphene's purely sp(3)-bonded analogue, graphane, potentially allows the synthesis of a much wider variety of novel two-dimensional materials by opening a pathway to the application of conventional chemistry methods in graphene. Graphene is currently hydrogenated by exposure to atomic hydrogen in a vacuum, but these methods have not yielded a complete conversion of graphene to graphane, even with graphene exposed to hydrogen on both sides of the lattice. By heating graphene in molecular hydrogen under compression to modest high pressure in a diamond anvil cell (2.6-5.0 GPa), we are able to react graphene with hydrogen and propose a method whereby fully hydrogenated graphane may be synthesized for the first time.