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Deuteration of C60 on a highly oriented pyrolytic graphite surface

Published online by Cambridge University Press:  12 October 2020

G. Pantazidis Open the ORCID record for G. Pantazidis [Opens in a new window] ,
M. Scheffler ,
F. D. S. Simonsen Open the ORCID record for F. D. S. Simonsen [Opens in a new window] ,
A. Cassidy Open the ORCID record for A. Cassidy [Opens in a new window] ,
P. A. Jensen ,
L. Hornekær  and
J. D. Thrower Open the ORCID record for J. D. Thrower [Opens in a new window]
G. Pantazidis
Affiliation:
Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark email: gpantazidis@phys.au.dk
M. Scheffler
Affiliation:
Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark email: gpantazidis@phys.au.dk
F. D. S. Simonsen
Affiliation:
Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark email: gpantazidis@phys.au.dk
A. Cassidy
Affiliation:
Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark email: gpantazidis@phys.au.dk
P. A. Jensen
Affiliation:
Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark email: gpantazidis@phys.au.dk
L. Hornekær
Affiliation:
Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark email: gpantazidis@phys.au.dk Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000 Aarhus C, Denmark email: liv@phys.au.dk
J. D. Thrower
Affiliation:
Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark email: gpantazidis@phys.au.dk
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Abstract

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Reactions on carbonaceous surfaces play an important role in processes such as H2 formation in the interstellar medium. We have investigated the adsorption of C2 molecules on a highly oriented pyrolytic graphite (HOPG) surface and then exposed them to a beam of deuterium atoms in order to investigate the formation of deuterated fullerenes. Scanning tunneling microscopy (STM) was used to probe the adsorbed molecules and their deuteration. Deuteration of C2 films results in increased thermal stability of the film, relative to films of pristine C2, along with an evolution towards higher deuterated species. The STM data provide confirmatory evidence for the formation of deuterated fullerene species.

Keywords

physical data and processes: astrochemistrymethods: laboratoryISM: molecules
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S350: Laboratory Astrophysics: From Observations to Interpretation , April 2019 , pp. 458 - 459
Copyright
© International Astronomical Union 2020

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