Electrochemical Properties of Carbon Aerogel Electrodes: Dependence on Synthesis Temperature
1
Institute of Physiologically Active Compounds of the Russian Academy of Sciences, 1 Severnij pr., Chernogolovka 142432, Russia
2
Institute of Problems of Chemical Physics of the Russian Academy of Sciences, 1 Acad. Semenov av., 1, Chernogolovka 142432, Russia
3
Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky av., Moscow 119991, Russia
*
Author to whom correspondence should be addressed.
Molecules 2019, 24(21), 3847; https://doi.org/10.3390/molecules24213847
Received: 3 October 2019 / Revised: 18 October 2019 / Accepted: 24 October 2019 / Published: 25 October 2019
(This article belongs to the Special Issue Design and Synthesis of Functional Nanomaterials)
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 of 700–760 m2/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.
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Keywords:
carbon aerogel; supercapacitor; electrode material; electron conductivity; specific capacitance
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MDPI and ACS Style
Malkova, A.N.; Sipyagina, N.A.; Gozhikova, I.O.; Dobrovolsky, Y.A.; Konev, D.V.; Baranchikov, A.E.; Ivanova, O.S.; Ukshe, A.E.; Lermontov, S.A. Electrochemical Properties of Carbon Aerogel Electrodes: Dependence on Synthesis Temperature. Molecules 2019, 24, 3847.
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