Effect of annealing temperature on electrochemical characteristics of ruthenium oxide/multi-walled carbon nanotube composites

Min Kang Seo; Abdelghani Saouab; Soo Jin Park

doi:10.1016/j.mseb.2010.01.028

Effect of annealing temperature on electrochemical characteristics of ruthenium oxide/multi-walled carbon nanotube composites

Min Kang Seo
, Abdelghani Saouab
, Soo Jin Park

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

Abstract

The preparation and characterization of high-surface-area ruthenium oxide (RuO₂)/multi-walled carbon nanotubes (MWCNTs) composite electrodes for use in supercapacitors is reported in this work. The RuO₂/MWCNTs composites were prepared by the polyol process of RuO₂ into MWCNTs and by Ru annealing in air before mixed with MWCNTs. The chemically oxidized and annealed Ru nanoparticles contribute a pseudocapacitance to the electrodes and dramatically improve the energy storage characteristics of the MWCNTs. These composites annealed at 200 °C demonstrate specific capacitances in excess of 130 F/g in comparison to 80 F/g for pristine MWCNTs. The annealing temperature is found to play an important role, as it affects the electrochemical performance of annealed RuO₂/MWCNTs composites critically due to its influence on the diffusion of protons into the structure.

Original language	English
Pages (from-to)	65-69
Number of pages	5
Journal	Materials Science and Engineering: B
Volume	167
Issue number	1
DOIs	https://doi.org/10.1016/j.mseb.2010.01.028
Publication status	Published - 25 Feb 2010
Externally published	Yes

Keywords

Annealing
Carbon nanotubes
Composites
Electrochemical properties
Ruthenium oxide

Access to Document

10.1016/j.mseb.2010.01.028

Cite this

@article{2b8821e84ebc416f8bcd3aba6be350d1,

title = "Effect of annealing temperature on electrochemical characteristics of ruthenium oxide/multi-walled carbon nanotube composites",

abstract = "The preparation and characterization of high-surface-area ruthenium oxide (RuO2)/multi-walled carbon nanotubes (MWCNTs) composite electrodes for use in supercapacitors is reported in this work. The RuO2/MWCNTs composites were prepared by the polyol process of RuO2 into MWCNTs and by Ru annealing in air before mixed with MWCNTs. The chemically oxidized and annealed Ru nanoparticles contribute a pseudocapacitance to the electrodes and dramatically improve the energy storage characteristics of the MWCNTs. These composites annealed at 200 °C demonstrate specific capacitances in excess of 130 F/g in comparison to 80 F/g for pristine MWCNTs. The annealing temperature is found to play an important role, as it affects the electrochemical performance of annealed RuO2/MWCNTs composites critically due to its influence on the diffusion of protons into the structure.",

keywords = "Annealing, Carbon nanotubes, Composites, Electrochemical properties, Ruthenium oxide",

author = "Seo, \{Min Kang\} and Abdelghani Saouab and Park, \{Soo Jin\}",

year = "2010",

month = feb,

day = "25",

doi = "10.1016/j.mseb.2010.01.028",

language = "English",

volume = "167",

pages = "65--69",

journal = "Materials Science and Engineering: B",

issn = "0921-5107",

number = "1",

}

TY - JOUR

T1 - Effect of annealing temperature on electrochemical characteristics of ruthenium oxide/multi-walled carbon nanotube composites

AU - Seo, Min Kang

AU - Saouab, Abdelghani

AU - Park, Soo Jin

PY - 2010/2/25

Y1 - 2010/2/25

N2 - The preparation and characterization of high-surface-area ruthenium oxide (RuO2)/multi-walled carbon nanotubes (MWCNTs) composite electrodes for use in supercapacitors is reported in this work. The RuO2/MWCNTs composites were prepared by the polyol process of RuO2 into MWCNTs and by Ru annealing in air before mixed with MWCNTs. The chemically oxidized and annealed Ru nanoparticles contribute a pseudocapacitance to the electrodes and dramatically improve the energy storage characteristics of the MWCNTs. These composites annealed at 200 °C demonstrate specific capacitances in excess of 130 F/g in comparison to 80 F/g for pristine MWCNTs. The annealing temperature is found to play an important role, as it affects the electrochemical performance of annealed RuO2/MWCNTs composites critically due to its influence on the diffusion of protons into the structure.

AB - The preparation and characterization of high-surface-area ruthenium oxide (RuO2)/multi-walled carbon nanotubes (MWCNTs) composite electrodes for use in supercapacitors is reported in this work. The RuO2/MWCNTs composites were prepared by the polyol process of RuO2 into MWCNTs and by Ru annealing in air before mixed with MWCNTs. The chemically oxidized and annealed Ru nanoparticles contribute a pseudocapacitance to the electrodes and dramatically improve the energy storage characteristics of the MWCNTs. These composites annealed at 200 °C demonstrate specific capacitances in excess of 130 F/g in comparison to 80 F/g for pristine MWCNTs. The annealing temperature is found to play an important role, as it affects the electrochemical performance of annealed RuO2/MWCNTs composites critically due to its influence on the diffusion of protons into the structure.

KW - Annealing

KW - Carbon nanotubes

KW - Composites

KW - Electrochemical properties

KW - Ruthenium oxide

UR - https://www.scopus.com/pages/publications/77049100699

U2 - 10.1016/j.mseb.2010.01.028

DO - 10.1016/j.mseb.2010.01.028

M3 - Article

AN - SCOPUS:77049100699

SN - 0921-5107

VL - 167

SP - 65

EP - 69

JO - Materials Science and Engineering: B

JF - Materials Science and Engineering: B

IS - 1

ER -

Effect of annealing temperature on electrochemical characteristics of ruthenium oxide/multi-walled carbon nanotube composites

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this