NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2016, 7 (1), P. 175–179
An improved adsorption method for the characterization of water-based supercapacitor electrodes
A. A. Maltsev – N. M. Emanuel Institute of Biochemical Physics of RAS, Moscow, Russia; alex.a.maltsev@gmail.com
S. B. Bibikov – N. M. Emanuel Institute of Biochemical Physics of RAS, Moscow, Russia; sbb.12@yandex.ru
V. N. Kalinichenko – Semenov Institute of Chemical Physics of RAS, Moscow, Russia; kalinval47@yandex.ru
The specific surface area is a key characteristic of carbon materials used in supercapacitor electrodes. In this paper, the use of a methylene blue technique for specific surface area determination is presented. Values for the specific surface area, determined by a new method, provide better correlation with theoretical values for the specific electrical capacity of highlyporous carbon electrodes than the values measured by the common BET method. Additionally, the methylene blue adsorption method is thought to characterize carbon adsorption activity in relation to a supercapacitor electrolyte.
Keywords: Supercapacitors, specific surface area, methylene blue, aqueous electrolyte.
PACS 82.47.Uv, 82.65.+r
DOI 10.17586/2220-8054-2016-7-1-175-179
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