Electrochemical Properties of Carbon Aerogel Electrodes: Dependence on Synthesis Temperature
by
Alena N. Malkova 1, Nataliya A. Sipyagina 1, Inna O. Gozhikova 1,2, Yury A. Dobrovolsky 2, Dmitry V. Konev 2, Alexander E. Baranchikov 3
, Olga S. Ivanova 3, Alexander E. Ukshe 2 and Sergey A. Lermontov 1,*
Alena N. Malkova 1, Nataliya A. Sipyagina 1, Inna O. Gozhikova 1,2, Yury A. Dobrovolsky 2, Dmitry V. Konev 2, Alexander E. Baranchikov 3, Olga S. Ivanova 3, Alexander E. Ukshe 2 and Sergey A. Lermontov 1,*
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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