Effects of the functional groups on the electrochemical properties of ordered porous carbon for supercapacitors

Li Zhen Fan; Suyan Qiao; Weili Song; Mao Wu; Xinbo He; Xuanhui Qu

doi:10.1016/j.electacta.2013.04.137

Effects of the functional groups on the electrochemical properties of ordered porous carbon for supercapacitors

Li Zhen Fan^*, Suyan Qiao, Weili Song, Mao Wu, Xinbo He, Xuanhui Qu

^*Corresponding author for this work

University of Science and Technology Beijing

Research output: Contribution to journal › Article › peer-review

167 Citations (Scopus)

Abstract

Ordered porous carbon with pore size of 80 nm (C80) was treated in concentrated nitric acid to investigate the effect of the functional groups on the electrochemical properties in supercapacitors. The optimum oxidation time for C80 with good supercapacitive performance in acidic and basic electrolytes was determined. The increase of nitrogen and oxygen groups in the surface results in the improvement of wettability. Though the decreased specific surface area, a remarkable increase in the specific capacitance was observed in the as-modified C80 due to the introduction of the nitrogen and oxygen functional groups. The modification of C80 via oxidation approach demonstrates an effective way to improve the wettability and electrochemical properties.

Original language	English
Pages (from-to)	299-304
Number of pages	6
Journal	Electrochimica Acta
Volume	105
DOIs	https://doi.org/10.1016/j.electacta.2013.04.137
Publication status	Published - 2013
Externally published	Yes

Keywords

Porous carbon
Supercapacitor
Surface chemistry
Surface modification
Wettability

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10.1016/j.electacta.2013.04.137

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title = "Effects of the functional groups on the electrochemical properties of ordered porous carbon for supercapacitors",

abstract = "Ordered porous carbon with pore size of 80 nm (C80) was treated in concentrated nitric acid to investigate the effect of the functional groups on the electrochemical properties in supercapacitors. The optimum oxidation time for C80 with good supercapacitive performance in acidic and basic electrolytes was determined. The increase of nitrogen and oxygen groups in the surface results in the improvement of wettability. Though the decreased specific surface area, a remarkable increase in the specific capacitance was observed in the as-modified C80 due to the introduction of the nitrogen and oxygen functional groups. The modification of C80 via oxidation approach demonstrates an effective way to improve the wettability and electrochemical properties.",

keywords = "Porous carbon, Supercapacitor, Surface chemistry, Surface modification, Wettability",

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T1 - Effects of the functional groups on the electrochemical properties of ordered porous carbon for supercapacitors

AU - Fan, Li Zhen

AU - Qiao, Suyan

AU - Song, Weili

AU - Wu, Mao

AU - He, Xinbo

AU - Qu, Xuanhui

PY - 2013

Y1 - 2013

N2 - Ordered porous carbon with pore size of 80 nm (C80) was treated in concentrated nitric acid to investigate the effect of the functional groups on the electrochemical properties in supercapacitors. The optimum oxidation time for C80 with good supercapacitive performance in acidic and basic electrolytes was determined. The increase of nitrogen and oxygen groups in the surface results in the improvement of wettability. Though the decreased specific surface area, a remarkable increase in the specific capacitance was observed in the as-modified C80 due to the introduction of the nitrogen and oxygen functional groups. The modification of C80 via oxidation approach demonstrates an effective way to improve the wettability and electrochemical properties.

AB - Ordered porous carbon with pore size of 80 nm (C80) was treated in concentrated nitric acid to investigate the effect of the functional groups on the electrochemical properties in supercapacitors. The optimum oxidation time for C80 with good supercapacitive performance in acidic and basic electrolytes was determined. The increase of nitrogen and oxygen groups in the surface results in the improvement of wettability. Though the decreased specific surface area, a remarkable increase in the specific capacitance was observed in the as-modified C80 due to the introduction of the nitrogen and oxygen functional groups. The modification of C80 via oxidation approach demonstrates an effective way to improve the wettability and electrochemical properties.

KW - Porous carbon

KW - Supercapacitor

KW - Surface chemistry

KW - Surface modification

KW - Wettability

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DO - 10.1016/j.electacta.2013.04.137

M3 - Article

AN - SCOPUS:84878745894

SN - 0013-4686

VL - 105

SP - 299

EP - 304

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Effects of the functional groups on the electrochemical properties of ordered porous carbon for supercapacitors

Abstract

Keywords

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