Enhancing the Performance of Supercapacitor Activated Carbon Electrodes by Oxidation

被引：0

作者：

Grishchenko, Liudmyla M. ^{[1
]}

Tsapyuk, Galyna G. ^{[1
]}

Ricco, Mauro ^{[2
]}

Diyuk, Vitally E. ^{[1
]}

Boldyrieva, Olga Yu ^{[1
]}

Mariychuk, Ruslan ^{[3
]}

Matushko, Igor P. ^{[1
]}

Pontiroli, Daniele ^{[2
]}

Lisnyak, Vladyslav V. ^{[4
]}

Scaravonati, Silvio ^{[2
]}

机构：

[1] Taras Shevchenko Natl Univ Kyiv, Chem Fac, Dept Phys Chem, Kiev, Ukraine

[2] Univ Parma, Dept Math Phys & Comp Sci, Parma, Italy

[3] Univ Presov, Fac Humanities & Nat Sci, Presov, Slovakia

[4] Taras Shevchenko Natl Univ Kyiv, Chem Fac, Dept Analyt Chem, Kiev, Ukraine

来源：

2020 IEEE 40TH INTERNATIONAL CONFERENCE ON ELECTRONICS AND NANOTECHNOLOGY (ELNANO) | 2020年

关键词：

activated carbon; oxidation; supercapacitor electrode; specific capacity; ELECTROCHEMICAL-BEHAVIOR;

D O I：

10.1109/elnano50318.2020.9088845

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Oxidation of activated carbon (AC) with nitric acid was carried out, and the resulting AC/HNO3 showed high capacity when used as supercapacitor electrode material operated in the KOH electrolyte. Oxidation caused different structural changes in the AC, reducing the specific surface area and the total pore volume. After oxidation, the content of all types of oxygen-containing groups and, especially, carboxyl groups showed a significant increase. Despite the significant reduction of the specific surface area, the specific capacitance of the oxidized AC in symmetric supercapacitor electrodes is 1.4 times larger than that for the pristine AC.

引用

页码：173 / 177

页数：5

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