Electrochemical nanostructuring of fullerene films—spectroscopic evidence for C60 polymer formation and hydrogenation

Matthias Krause; Denny Deutsch; Pavel Janda; Ladislav Kavan; Lothar Dunsch

doi:10.1039/B504528B

Electrochemical nanostructuring of fullerene films—spectroscopic evidence for C₆₀polymer formation and hydrogenation†

Matthias Krause,^a Denny Deutsch,*^a Pavel Janda,^ab Ladislav Kavan^ab and Lothar Dunsch^a

* Corresponding authors

^a Leibniz Institute for Solid State and Materials Research Dresden, PF 270116, Dresden, Germany
E-mail: d.deutsch@ifw-dresden.de
Fax: +49-351-4659-745
Tel: +49-351-4659-714

^b J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, Praha 8, Czech Republic

Abstract

Electrochemical reduction of ordered C₆₀ fullerene films in aqueous solution was studied by AFM, FTIR and Raman spectroscopy, mass spectrometry and elastic recoil detection analysis. During the irreversible reduction process the film morphology changed from a heteroepitaxial (111) surface to a nanostructured array with clusters of 20 to 50 nm lateral size on average. On the molecular level the initial C₆₀ underwent electrochemical reactions to form C₆₀ polymers and hydrogenated C₆₀. Chemical follow-up reactions of electrochemically formed C₆₀⁻ with water are responsible for the different reduction behaviour of C₆₀ films in aqueous solution compared to C₆₀ reduction in organic solvents and to C₆₀ doping with alkali metals. Based on the spectroscopic analysis a reaction scheme accounting for the chemical processes at the C₆₀ | aqueous electrolyte interface is presented.

Article information

https://doi.org/10.1039/B504528B

Article type

Paper

Submitted

31 Mar 2005

Accepted

13 Jul 2005

First published

22 Jul 2005

Download Citation

Phys. Chem. Chem. Phys., 2005,7, 3179-3184

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Electrochemical nanostructuring of fullerene films—spectroscopic evidence for C₆₀ polymer formation and hydrogenation

M. Krause, D. Deutsch, P. Janda, L. Kavan and L. Dunsch, Phys. Chem. Chem. Phys., 2005, 7, 3179 DOI: 10.1039/B504528B

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