Reversible Hydrogenation of Graphene on Ni(111)-Synthesis of ’Graphone’

Zhao W, Gebhardt J, Späth F, Gotterbarm K, Gleichweit C, Steinrück HP, Görling A, Papp C (2015)

Publication Language: English

Publication Type: Journal article

Publication year: 2015

Journal

Publisher: Wiley-VCH Verlag

Book Volume: 21

Pages Range: 3347--3358

Volume: 21

Issue: 8

Journal Issue: 8

DOI: 10.1002/chem.201404938

Abstract

Understanding the adsorption and reaction between hydrogen and graphene is of fundamental importance for developing graphene-based concepts for hydrogen storage and for the chemical functionalization of graphene by hydrogenation. Recently, theoretical studies of single-sided hydrogenated graphene, so called graphone, predicted it to be a promising semiconductor for applications in graphene-based electronics. Here, we report on the synthesis of graphone bound to a Ni(111) surface. We investigate the formation process by X-ray photoelectron spectroscopy (XPS), temperature-programmed desorption (TPD), and density-functional theory calculations, showing that the hydrogenation of graphene with atomic hydrogen indeed leads to graphone, that is, a hydrogen coverage of 1ML (4.2 wt \%). The dehydrogenation of graphone reveals complex desorption processes that are attributed to coverage-dependent changes in the activation energies for the associative desorption of hydrogen as molecular H2 .

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APA:

Zhao, W., Gebhardt, J., Späth, F., Gotterbarm, K., Gleichweit, C., Steinrück, H.-P.,... Papp, C. (2015). Reversible Hydrogenation of Graphene on Ni(111)-Synthesis of ’Graphone’. Chemistry - A European Journal, 21(8), 3347--3358. https://doi.org/10.1002/chem.201404938

MLA:

Zhao, Wei, et al. "Reversible Hydrogenation of Graphene on Ni(111)-Synthesis of ’Graphone’." Chemistry - A European Journal 21.8 (2015): 3347--3358.

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