Controlling Hydrogenation of Graphene on Ir(111)

Richard Balog; Mie Andersen; Bjarke Jørgensen; Zeljko Sljivancanin; Bjørk Hammer; Alessandro Baraldi; Rosanna Larciprete; Philip Hofmann; Liv Hornekær; Silvano Lizzit

doi:10.1021/nn400780x

Controlling Hydrogenation of Graphene on Ir(111)

Richard Balog, Mie Andersen, Bjarke Jørgensen, Zeljko Sljivancanin, Bjørk Hammer, Alessandro Baraldi, Rosanna Larciprete, Philip Hofmann, Liv Hornekær, Silvano Lizzit

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

77 Citations (Scopus)

Abstract

Combined fast X-ray photoelectron spectroscopy and density functional theory
calculations reveal the presence of two types of hydrogen adsorbate structures at the graphene/
Ir(111) interface, namely, graphane-like islands and hydrogen dimer structures. While the former
give rise to a periodic pattern, dimers tend to destroy the periodicity. Our data reveal distinctive
growth rates and stability of both types of structures, thereby allowing one to obtain well-defined
patterns of hydrogen clusters. The ability to control and manipulate the formation and size of
hydrogen structures on graphene facilitates tailoring of its properties for a wide range of
applications by means of covalent functionalization.

Original language	English
Journal	A C S Nano
Volume	7
Issue	5
Pages (from-to)	3823–3832
Number of pages	9
ISSN	1936-0851
DOIs	https://doi.org/10.1021/nn400780x
Publication status	Published - 13 Apr 2013

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title = "Controlling Hydrogenation of Graphene on Ir(111)",

abstract = "Combined fast X-ray photoelectron spectroscopy and density functional theory calculations reveal the presence of two types of hydrogen adsorbate structures at the graphene/ Ir(111) interface, namely, graphane-like islands and hydrogen dimer structures. While the former give rise to a periodic pattern, dimers tend to destroy the periodicity. Our data reveal distinctive growth rates and stability of both types of structures, thereby allowing one to obtain well-defined patterns of hydrogen clusters. The ability to control and manipulate the formation and size of hydrogen structures on graphene facilitates tailoring of its properties for a wide range of applications by means of covalent functionalization.",

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T1 - Controlling Hydrogenation of Graphene on Ir(111)

AU - Balog, Richard

AU - Andersen, Mie

AU - Jørgensen, Bjarke

AU - Sljivancanin, Zeljko

AU - Hammer, Bjørk

AU - Baraldi, Alessandro

AU - Larciprete, Rosanna

AU - Hofmann, Philip

AU - Hornekær, Liv

AU - Lizzit, Silvano

PY - 2013/4/13

Y1 - 2013/4/13

N2 - Combined fast X-ray photoelectron spectroscopy and density functional theory calculations reveal the presence of two types of hydrogen adsorbate structures at the graphene/ Ir(111) interface, namely, graphane-like islands and hydrogen dimer structures. While the former give rise to a periodic pattern, dimers tend to destroy the periodicity. Our data reveal distinctive growth rates and stability of both types of structures, thereby allowing one to obtain well-defined patterns of hydrogen clusters. The ability to control and manipulate the formation and size of hydrogen structures on graphene facilitates tailoring of its properties for a wide range of applications by means of covalent functionalization.

AB - Combined fast X-ray photoelectron spectroscopy and density functional theory calculations reveal the presence of two types of hydrogen adsorbate structures at the graphene/ Ir(111) interface, namely, graphane-like islands and hydrogen dimer structures. While the former give rise to a periodic pattern, dimers tend to destroy the periodicity. Our data reveal distinctive growth rates and stability of both types of structures, thereby allowing one to obtain well-defined patterns of hydrogen clusters. The ability to control and manipulate the formation and size of hydrogen structures on graphene facilitates tailoring of its properties for a wide range of applications by means of covalent functionalization.

U2 - 10.1021/nn400780x

DO - 10.1021/nn400780x

M3 - Journal article

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SN - 1936-0851

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EP - 3832

JO - A C S Nano

JF - A C S Nano

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