Functional composition and electrochemical characteristics of oxidized nanosized carbon

Functional composition and electrochemical characteristics of oxidized nanosized carbon Full article

Journal

Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779

Output data

Year: 2017, Volume: 58, Number: 6, Pages: 1187-1195 Pages count : 9 DOI: 10.1134/S0022476617060178

Tags

nanosized carbon, oxidation, functional composition, XPS, NEXAFS, electrochemical processes, cyclic voltammetry, supercapacitors, long-term cycling

Authors

Popov K. M. ¹ , Fedoseeva Yu. V. ^1,2 , Kokhanovskaya O. A. ³ , Razd′yakonova G. I. ³ , Smirnov D. A. ⁴ , Bulusheva L. G. ^1,2 , Okotrub A. V. ^1,2

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences
2	Novosibirsk National Research State University, Russia
3	3 Institute of Problems of Hydrocarbon Processing, Siberian Branch, Russian Academy of Sciences, Omsk, Russia
4	4 Institute of Solid State Physics, TU Dresden, Dresden, Germany

The functional composition and electrochemical behavior of the samples of N121 oxidized nanosized technical carbon in aqueous electrolytes are studied. For oxidation a 30% aqueous hydrogen peroxide (H2O2) solution and 2% H2O2 with the addition of singlet oxygen or ozone were used. By means of X-ray photoelectron spectroscopy data and the analysis of the near edge X-ray absorption fine structure the features of the chemical structure of the samples are found. The oxygen concentration did not exceed 5 at.% in the samples. The analysis of cyclic voltammograms reveals that at low scan rates the specific capacitance of the material is determined by the functional composition of the surface. The sample oxidized by 30% H2O2 solution and containing the largest number of –OH and –COOH groups demonstrated the highest capacitance in 6M KOH and in 1М H2SO4 it was the sample with the highest concentration of C=O groups formed during the oxidation with singlet oxygen. The stability of carbon electrodes is studied in supercapacitor models.

Popov K.M. , Fedoseeva Y.V. , Kokhanovskaya O.A. , Razd′yakonova G.I. , Smirnov D.A. , Bulusheva L.G. , Okotrub A.V.
Functional composition and electrochemical characteristics of oxidized nanosized carbon
Journal of Structural Chemistry. 2017. V.58. N6. P.1187-1195. DOI: 10.1134/S0022476617060178 WOS Scopus РИНЦ OpenAlex

Попов К.М. , Федосеева Ю.В. , Кохановская О.А. , Раздьяконова Г.И. , Смирнов Д.А. , Булушева Л.Г. , Окотруб А.В.
Функциональный состав и электрохимические характеристики окисленного нанодисперсного углерода
Журнал структурной химии. 2017. Т.58. №6. С.1235-1243. DOI: 10.15372/JSC20170617 РИНЦ OpenAlex

Published print:	Nov 1, 2017
Published online:	Nov 26, 2017

Web of science:	WOS:000416232500017
Scopus:	2-s2.0-85036569589
Elibrary:	35495791
OpenAlex:	W2770519115

DB	Citing
Web of science	7
Scopus	7
Elibrary	1
OpenAlex	7