Electrochemical Properties of Carbon Aerogel Electrodes: Dependence on Synthesis Temperature

A series of carbon aerogels (C-AGs) were prepared by the pyrolysis of resorcinol-formaldehyde aerogels at 700−1100 °C as potential supercapacitor electrodes, and their texture and electrochemical properties were determined. The specific surface area of all C-AGs was in the range o...

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Bibliographic Details
Main Authors: Alena N. Malkova, Nataliya A. Sipyagina, Inna O. Gozhikova, Yury A. Dobrovolsky, Dmitry V. Konev, Alexander E. Baranchikov, Olga S. Ivanova, Alexander E. Ukshe, Sergey A. Lermontov
Format: Article
Language:English
Published: MDPI AG 2019-10-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/24/21/3847
Description
Summary:A series of carbon aerogels (C-AGs) were prepared by the pyrolysis of resorcinol-formaldehyde aerogels at 700&#8722;1100 &#176;C as potential supercapacitor electrodes, and their texture and electrochemical properties were determined. The specific surface area of all C-AGs was in the range of 700&#8722;760 m<sup>2</sup>/g, their electron conductivity increased linearly from 0.4 to 4.46 S/cm with an increase of the pyrolysis temperature. The specific capacitance of electrode material based on C-AGs reached 100 F/g in sulfuric acid and could be realized at a 2 A/g charge-discharge current, which makes it possible to use carbon aerogels as electrode materials.
ISSN:1420-3049