An improved adsorption method for the characterization of water-based supercapacitor electrodes
https://doi.org/10.17586/2220-8054-2016-7-1-175-179
Abstract
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 highly-porous 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.
About the Authors
A. A. Maltsev
N.M. Emanuel Institute of Biochemical Physics of RAS
Russian Federation
Russian Federation
Moscow
S. B. Bibikov
N.M. Emanuel Institute of Biochemical Physics of RAS
Russian Federation
Russian Federation
Moscow
V. N. Kalinichenko
Semenov Institute of Chemical Physics of RAS
Russian Federation
Russian Federation
Moscow
References
1. Shao J., Li X., Qu Q., Wu Y. Study on different power and cycling performance of crystalline KxMnO2·nH2O as cathode material for supercapacitors in Li2SO4, Na2SO4, and K2SO4 aqueous electrolytes. J. Power Sources, 2013, 223, P. 56–61.
2. Chen W., Xia C., Alshareef H.N. Graphene based integrated tandem supercapacitors fabricated directly on separators. Nano Energy, 2015, 15, P. 1–8.
3. Wu X., Jiang L., Long C., Fann Z. From flour to honeycomb-like carbon foam: Carbon makes room for high energy density supercapacitors. Nano Energy, 2015, 13, P. 527–536.
4. Tsai W.-Y., Lin R., Murali S., Zhang L.L., McDonough J.K., Ruoff R.S., Taberna P.-L., Gogotsi Y., Simon P. Outstanding performance of activated graphene based supercapacitors in ionic liquid electrolyte from −50 to 80◦C. Nano Energy, 2013, 2, P. 403–411.
5. Fagerlund G. Determination of specific surface by the BET method. Matáriaux et Construction, 1973, 6(3), P. 239–245.
6. Trunschke A. Surface Area and Pore Size Determination; Modern Meth- ods in Heterogeneous Catalysis Research; 19/10/2007, URL: http://www.fhi- berlin.mpg.de/acnew/department/pages/teaching/pages/teaching__wintersemester__2007_2008.html
7. Hengxing Ji H., Xin Zhaow X., Zhenhua Qiao Z., Jeil Jung J., Yanwu Zhu Y., Yalin Lu Y., Zhang L.L., MacDonald A.H., Ruoff R.S. Capacitance of carbon-based electrical double-layer capacitors. Nature Commun., 2014, 5, Article number: 3317, DOI: 10.1038/ncomms4317.
8. GOST 1. 13144-79. Graphite. Methods for the determination of specific surface. URL: http://gostexpert.ru/gost/gost-13144-79.
9. Huang J., Sumpter B.G., Meunier V. A Universal Model for Nanoporous Carbon Supercapacitors Applicable to Diverse Pore Regimes, Carbon Materials, and Electrolytes. Chemistry - A European Journal, 2008, 14(22), P. 6614–6626.
Review
For citations:
Maltsev A.A., Bibikov S.B., Kalinichenko V.N. An improved adsorption method for the characterization of water-based supercapacitor electrodes. Nanosystems: Physics, Chemistry, Mathematics. 2016;7(1):175-179. https://doi.org/10.17586/2220-8054-2016-7-1-175-179
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