Hydrogenation of Graphene by Reaction at High Pressure and High Temperature

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• 作者：Dean Smith ; Ross T. Howie ; Iain F. Crowe ; Cristina L. Simionescu ; Chris Muryn ; Vladimir Vishnyakov ; Konstantin S. Novoselov ; Yong-Jin Kim ; Matthew P. Halsall ; Eugene Gregoryanz ; John E. Proctor
• 刊名：ACS Nano
• 出版年：2015
• 出版时间：August 25, 2015
• 年：2015
• 卷：9
• 期：8
• 页码：8279-8283
• 全文大小：314K
• ISSN：1936-086X

文摘

The chemical reaction between hydrogen and purely sp²-bonded graphene to form graphene鈥檚 purely sp³-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鈥?.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.