Thermochemically activated carbon as an electrode material for supercapacitors

The results of electrochemical studies of nanoporous carbon as electrode material for electrochemical capacitors (EC) are presented in this work. Nanoporous carbon material (NCM) was obtained from the raw materials of plant origin by carbonization and subsequent activation in potassium hydroxide. It...

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Autores principales: Ostafiychuk, Bogdan K, Budzulyak, Ivan M, Rachiy, Bogdan I, Vashchynsky, Vitalii M, Mandzyuk, Volodymyr I, Lisovsky, Roman P, Shyyko, Lyudmyla O
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2015
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4385132/
https://www.ncbi.nlm.nih.gov/pubmed/25852362
http://dx.doi.org/10.1186/s11671-015-0762-1
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author Ostafiychuk, Bogdan K
Budzulyak, Ivan M
Rachiy, Bogdan I
Vashchynsky, Vitalii M
Mandzyuk, Volodymyr I
Lisovsky, Roman P
Shyyko, Lyudmyla O
author_facet Ostafiychuk, Bogdan K
Budzulyak, Ivan M
Rachiy, Bogdan I
Vashchynsky, Vitalii M
Mandzyuk, Volodymyr I
Lisovsky, Roman P
Shyyko, Lyudmyla O
author_sort Ostafiychuk, Bogdan K
collection PubMed
description The results of electrochemical studies of nanoporous carbon as electrode material for electrochemical capacitors (EC) are presented in this work. Nanoporous carbon material (NCM) was obtained from the raw materials of plant origin by carbonization and subsequent activation in potassium hydroxide. It is established that there is an optimal ratio of 1:1 between content of KOH and carbon material at chemical activation, while the maximum specific capacity of NCM is 180 F/g. An equivalent electrical circuit, which allows modeling of the impedance spectra in the frequency range of 10(−2) to 10(5) Hz, is proposed, and a physical interpretation of each element of the electrical circuit is presented.
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spelling pubmed-43851322015-04-07 Thermochemically activated carbon as an electrode material for supercapacitors Ostafiychuk, Bogdan K Budzulyak, Ivan M Rachiy, Bogdan I Vashchynsky, Vitalii M Mandzyuk, Volodymyr I Lisovsky, Roman P Shyyko, Lyudmyla O Nanoscale Res Lett Nano Express The results of electrochemical studies of nanoporous carbon as electrode material for electrochemical capacitors (EC) are presented in this work. Nanoporous carbon material (NCM) was obtained from the raw materials of plant origin by carbonization and subsequent activation in potassium hydroxide. It is established that there is an optimal ratio of 1:1 between content of KOH and carbon material at chemical activation, while the maximum specific capacity of NCM is 180 F/g. An equivalent electrical circuit, which allows modeling of the impedance spectra in the frequency range of 10(−2) to 10(5) Hz, is proposed, and a physical interpretation of each element of the electrical circuit is presented. Springer US 2015-02-12 /pmc/articles/PMC4385132/ /pubmed/25852362 http://dx.doi.org/10.1186/s11671-015-0762-1 Text en © Ostafiychuk et al.; licensee Springer. 2015 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.
spellingShingle Nano Express
Ostafiychuk, Bogdan K
Budzulyak, Ivan M
Rachiy, Bogdan I
Vashchynsky, Vitalii M
Mandzyuk, Volodymyr I
Lisovsky, Roman P
Shyyko, Lyudmyla O
Thermochemically activated carbon as an electrode material for supercapacitors
title Thermochemically activated carbon as an electrode material for supercapacitors
title_full Thermochemically activated carbon as an electrode material for supercapacitors
title_fullStr Thermochemically activated carbon as an electrode material for supercapacitors
title_full_unstemmed Thermochemically activated carbon as an electrode material for supercapacitors
title_short Thermochemically activated carbon as an electrode material for supercapacitors
title_sort thermochemically activated carbon as an electrode material for supercapacitors
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4385132/
https://www.ncbi.nlm.nih.gov/pubmed/25852362
http://dx.doi.org/10.1186/s11671-015-0762-1
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