Development of a Technique and Investigation of Capacitance Characteristics of Electrode Materials for Supercapacitors Based on Nitrogen-Doped Carbon Nanotubes | Sciact - CRIS-system of Boreskov Institute of Catalysis

Development of a Technique and Investigation of Capacitance Characteristics of Electrode Materials for Supercapacitors Based on Nitrogen-Doped Carbon Nanotubes Full article

Journal

Eurasian Chemico-Technological Journal
ISSN: 1562-3920

Output data

Year: 2017, Volume: 19, Number: 3, Pages: 201-208 Pages count : 8 DOI: 10.18321/ectj663

Tags

Carbon nanotubes, Electric capacitance, Electrical double layer, Electrode materials, Pseudocapacitance, Supercapacitors

Authors

Simenyuk G.Yu. ¹ , Puzynin A.V. ^1,2 , Podyacheva O.Y. ³ , Salnikov A.V. ^1,3 , Zakharov Y.A. ^1,4 , Ismagilov Z.R. ^1,3

Affiliations

1	Institute of Coal Chemistry and Materials Science SB RAS, Pr. Sovetskiy, 18, Kemerovo, 650000, Russia
2	T.F. Gorbachev Kuzbass State Technical University, 50 Let Oktyabrya str., 17, Kemerovo, 650000, Russia
3	Boreskov Institute of Catalysis SB RAS, Pr. Akad. Lavrentieva, 5, Novosibirsk, 630090, Russia
4	Kemerovo State University, Krasnaya str., 6, Kemerovo, 650043, Russia

Funding (1)

Russian Science Foundation

15-13-10043

Carbon nanotubes are widely employed as catalyst supports and electrode materials. In our earlier studies, capacitance characteristics of carbon nanotubes (CNTs) and nitrogen-doped carbon nanotubes (N-CNTs) were measured. Voltammetric curves obtained for nitrogen-doped nanotubes in an acid electrolyte showed pseudocapacitance peaks that were caused by electrochemical processes involving nitrogen-containing functional groups. In this study, measurements were made in a two-electrode cell of a supercapacitor with a hydrophilic polypropylene PORP-A1 film serving as a separator in alkaline (6 M KOH solution) and acid (1 M H2SO4 solution) electrolytes using a PARSTAT 4000 potentiostat/galvanostat. A technique was developed to estimate the contribution of electrical double layer (EDL) by subtracting pseudocapacitance from total capacitance of a cell using the Origin 9 software. The contribution of EDL and pseudocapacitance to the capacitance of supercapacitor cells was estimated. The highest capacitance of an electrode material equal to 97.2 F/g (including the EDL capacitance of 65 F/g) was reached for nanotubes doped with 8.5% of nitrogen in an acid electrolyte at a potential scanning rate of 10 mV/s.

Simenyuk G.Y. , Puzynin A.V. , Podyacheva O.Y. , Salnikov A.V. , Zakharov Y.A. , Ismagilov Z.R.
Development of a Technique and Investigation of Capacitance Characteristics of Electrode Materials for Supercapacitors Based on Nitrogen-Doped Carbon Nanotubes

Eurasian Chemico-Technological Journal. 2017. V.19. N3. P.201-208. DOI: 10.18321/ectj663 WOS Scopus РИНЦ AN OpenAlex

Full text from publisher

Submitted:	Jan 8, 2017
Accepted:	May 18, 2017
Published print:	Sep 15, 2017
Published online:	Sep 30, 2017

Web of science:	WOS:000419757300001
Scopus:	2-s2.0-85034834250
Elibrary:	30633896
Chemical Abstracts:	2019:696933
OpenAlex:	W2769353329

DB	Citing
Web of science	4
Scopus	2
Elibrary	5
OpenAlex	2