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Formation of graphane and partially hydrogenated graphene by electron irradiation of adsorbates on graphene

✍ Scribed by J.D. Jones; K.K. Mahajan; W.H. Williams; P.A. Ecton; Y. Mo; J.M. Perez

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
409 KB
Volume
48
Category
Article
ISSN
0008-6223

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✦ Synopsis

We report the formation of graphane and partially hydrogenated graphene by electron irradiation of graphene having chemisorbed H 2 O and NH 3 . Graphane is formed by the irradiation of graphene that is mechanically exfoliated onto SiO 2 substrates in air at a relative humidity of 50%. Partially hydrogenated graphene is formed by the irradiation of graphene that is heated to remove adsorbates and then exposed to H 2 O or NH 3 gases. We propose that hydrogenation is due to H + ions and H radicals produced by the fragmentation of H 2 O and NH 3 adsorbates by impact with backscattered and secondary electrons. This effect could be used as a technique for writing graphane and partially hydrogenated graphene nanostructures on graphene using electron-beam lithography.

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Effect of hydrogenation, low energy ion irradiation and annealing on hydrogen bonding to polycrystalline diamond surface studied by high resolution electron energy loss spectroscopy
✍ Michaelson, Sh. ;Ternyak, O. ;Akhvlediani, R. ;Lafosse, A. ;Bertin, M. ;Azria, R πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 246 KB

## Abstract The effects of different processes of hydrogenation, thermal treatment and ion irradiation of hydrogenated polycrystalline diamond surface have been investigated by means of high resolution electron energy loss spectroscopy (HR‐EELS). Analysis of the different contributions in the CH st