1. Interfacial properties of a carbyne-rich nanostructured carbon thin film in ionic liquid
- Author
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Paolo Piseri, Flavio Della Foglia, Paolo Milani, and Luca Giacomo Bettini
- Subjects
Materials science ,chemistry.chemical_element ,Bioengineering ,Nanotechnology ,02 engineering and technology ,Electrolyte ,010402 general chemistry ,Electrochemistry ,01 natural sciences ,chemistry.chemical_compound ,General Materials Science ,Electrical and Electronic Engineering ,Thin film ,Mechanical Engineering ,General Chemistry ,021001 nanoscience & nanotechnology ,0104 chemical sciences ,Dielectric spectroscopy ,Carbon film ,chemistry ,Chemical engineering ,Mechanics of Materials ,Ionic liquid ,Cyclic voltammetry ,0210 nano-technology ,Carbon - Abstract
Nanostructured carbon sp(2) (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 sp(2) carbon, showing the substantial influence of carbynes on the electrochemical properties of nanostructured carbon electrodes.
- Published
- 2016