ISSN 1608-4039 (Print)
ISSN 1680-9505 (Online)


Error message

  • Notice: Undefined index: en in company_name() (line 470 of /fs/www/izvestiya_new/public/sites/all/modules/custom/biblio_list/biblio_list.module).
  • Notice: Undefined index: en in company_name() (line 470 of /fs/www/izvestiya_new/public/sites/all/modules/custom/biblio_list/biblio_list.module).

For citation:

Bakhmatyuk B. P., Vengrin B. Y., Grigorchak I. I., Mitsov M. M., Kulik Y. O. Criteria and mechanism of capacity and pseudocapacity charge accumulation in activated carbon in view of its nanoporous structure and electronic structure. Electrochemical Energetics, 2007, vol. 7, iss. 2, pp. 78-?. , EDN: MLJJDZ

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
Language: 
Russian
Heading: 
Article type: 
Article
EDN: 
MLJJDZ

Criteria and mechanism of capacity and pseudocapacity charge accumulation in activated carbon in view of its nanoporous structure and electronic structure

Autors: 
Bakhmatyuk B. P., National University "Lvov Polyequipment"
Vengrin B. Ya., Gefra Concern
Grigorchak I. I., The Lvov National University of Iv?n Franco
Mitsov M. M., Gefra Concern
Kulik Yu. O., The Lvov National University of Iv?n Franco
Abstract: 

The relation between porous structure, electronic properties of carbonaceous material and the capacitance of its interface with an electrolyte is discussed. The sizes of the pores in which the processes of capacitive and pseudocapacitive charge accumulation dominate are determined. Theoretical analysis of the processes taking place on the nanoporous carbon||electrolyte interface has made it possible to recognize the intercalative nature of pseudocapacity and to find the criterion of its manifestation in the form of the formation of a continuous series of stable valency phases. Computer modeling of the processes enabled us to make up corresponding equivalent electric circuits.

Key words: 
Reference: 

1. Shukla A. K., Sampath S., Vijayamohanan K. // Current Science. 2000. V. 79. Р. 1656.
2. Kotz R., Carlen M. // Electrochim. Acta. 2000. V. 45. P. 2483.
3. Conway B. E. Electrochemical Supercapacitors. N. Y.: Plenum Publishing, 1999. 4. Вольфкович Ю. М., Сердюк Т. М. // Электрохимия. 2002. Т. 38. С. 1043.
5. Dietz S. D., Nguyen V. // Proc. 10th Intern. Seminar on Double Layer Capacitors and Similar Energy Storage Devices. USA, Deerfield Beach, 2000. P. 7.
6. Shi H. // Electrochim. Acta. 1996. V. 41. P. 1633.
7. Bockris J. O'M., Devanathan M. A., Muller K. // Proc. R. Soc. 1963. V.A274. P. 55.
8. Gryglewicz G., Machnikowski J., Lorenc-Grabowska E., Lota G., Frackowiak E. // Electrochim. Acta. 2005. V. 50. P. 1197.
9. Little A. D. // Proc. 4th Intern.Seminar on Double Layer Capacitors and Similar Energy Storage Devices. USA, Deerfield Beach, 1994. P. 32.
10. Кют Р. Н., Сморгонская Э. А., Гордеев С. К., Гречинская А. В., Данишевский А. М. // ФТТ. 1999. Т. 41. С. 1484.
11. Endo M., Takeda T., Kim Y. J., Koshiba K., Ishii K. // Carbon Science. 2001. V. 1. Р. 117.
12. Гуревич Ю. Я., Плесков Ю. В. Фотоэлектрохимия полупроводников. М.: Наука, 1983.
13. Belyakov A. I., Brintsev A. M., Khodyrevskaya N. // Proc. 14th Intern.Seminar on Double Layer Capacitors and Hybrid Energy Storage Devices. USA, Deerfield Beach, 2004. P. 84.
14. Справочник по электрохимии/Под ред. А. М. Сухотина. Л.: Химия, 1981.
15. Мищенко К. П., Полторацкий Г. М. Термодинамика и строение водных и неводных растворов электролитов. Л.: Химия, 1976.
16. Наумов Г. Б., Рыженко Б. Н., Ходаковский И. Л. Справочник термодинамических величин (для геологов). М.: Атомиздат, 1971.
17. Weng To-Chi, Teng Hsisheng // J. Electrochem. Society. 2001. V. 148. P. A368. 18. Lang N. D., Kohn W. // Phys. Rev. B. 1970. V. 1. P. 4555.
19. Anderson P. W. // Phys. Rev. Lett. 1975. V. 34. P. 953.
20. Рычагов А. Ю., Уриссон Н. А., Вольфкович Ю. М. // Электрохимия. 2001. Т. 37. С. 1348.
21. Coe J. V. // Chem. Phys. Lett. 1994. V. 229. P. 161.
22. Tissandier M. D., Cowen K. A., Feng W. Y., Gundbach E., Cohen M. H., Earhart A. D., Coe J. V. // J. Phys. Chem. A. 1998. V. 102. P. 7787.

Received: 
30.06.2007
Accepted: 
30.06.2007
Published: 
30.07.2007