Nanostructured carbon sp2 (ns-C) thin films with up to 30% of sp-coordinated atoms (carbynes) were produced in a high vacuum by the low kinetic energy deposition of carbon clusters produced in the gas phase and accelerated by a supersonic expansion. Immediately after deposition the ns-C films were immersed in situ in an ionic liquid electrolyte. The interfacial properties of ns-C films in the ionic liquid electrolyte were characterized by electrochemical impedance spectroscopy and cyclic voltammetry (CV). The so-prepared carbyne-rich electrodes showed superior electric double layer (EDL) capacitance and electric conductivity compared to ns-C electrodes containing only sp2 carbon, showing the substantial influence of carbynes on the electrochemical properties of nanostructured carbon electrodes.

Interfacial properties of a carbyne-rich nanostructured carbon thin film in ionic liquid / L.G. Bettini, F. Della Foglia, P. Piseri, P. Milani. - In: NANOTECHNOLOGY. - ISSN 0957-4484. - 27:11(2016 Mar 18), pp. 115403.1-115403.6. [10.1088/0957-4484/27/11/115403]

Interfacial properties of a carbyne-rich nanostructured carbon thin film in ionic liquid

L.G. Bettini
Primo
;
F. Della Foglia
Secondo
;
P. Piseri
Penultimo
;
P. Milani
Ultimo
2016

Abstract

Nanostructured carbon sp2 (ns-C) thin films with up to 30% of sp-coordinated atoms (carbynes) were produced in a high vacuum by the low kinetic energy deposition of carbon clusters produced in the gas phase and accelerated by a supersonic expansion. Immediately after deposition the ns-C films were immersed in situ in an ionic liquid electrolyte. The interfacial properties of ns-C films in the ionic liquid electrolyte were characterized by electrochemical impedance spectroscopy and cyclic voltammetry (CV). The so-prepared carbyne-rich electrodes showed superior electric double layer (EDL) capacitance and electric conductivity compared to ns-C electrodes containing only sp2 carbon, showing the substantial influence of carbynes on the electrochemical properties of nanostructured carbon electrodes.
carbon; carbyne; energy storage; ionic liquid; supersonic cluster beam deposition; Bioengineering; Chemistry (all); Electrical and Electronic Engineering; Mechanical Engineering; Mechanics of Materials; Materials Science (all)
Settore FIS/03 - Fisica della Materia
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/375059
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