Enhancement of electrochemical capacitance using Ni-modified carbon nanofibers prepared by a hydrothermal process

Chih Ming Chuang; Cheng Wei Huang; Hsisheng Teng; Jyh Ming Ting

doi:10.1149/1.3355939

Enhancement of electrochemical capacitance using Ni-modified carbon nanofibers prepared by a hydrothermal process

Chih Ming Chuang, Cheng Wei Huang, Hsisheng Teng, Jyh Ming Ting

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

5 Citations (Scopus)

Abstract

A hydrothermal method was used to graft Ni nanoparticles onto the surfaces of carbon nanofibers (CNFs). The Ni nanoparticles have a narrow size distribution and are well dispersed over the CNF surfaces. Electrochemical capacitors were fabricated using CNFs and Ni-grafted CNFs as the electrodes. The electrochemical capacitance was enhanced due to the presence of the Ni nanoparticles. This is attributed to the occurrence of the pseudocapacitance effect, enhanced electric double layer capacitance, and increased electrical conductivity. The enhancement was proportional to the Ni content and can be as high as 214%. The stability of the Ni-grafted CNF capacitor was demonstrated by subjecting the capacitor to a potential sweep at 500 mV s^-1 for 500 cycles.

Original language	English
Pages (from-to)	K113-K117
Journal	Journal of the Electrochemical Society
Volume	157
Issue number	5
DOIs	https://doi.org/10.1149/1.3355939
Publication status	Published - 2010 Apr 27

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1149/1.3355939

Cite this

@article{eb9461264f13441ba3179575191e7799,

title = "Enhancement of electrochemical capacitance using Ni-modified carbon nanofibers prepared by a hydrothermal process",

abstract = "A hydrothermal method was used to graft Ni nanoparticles onto the surfaces of carbon nanofibers (CNFs). The Ni nanoparticles have a narrow size distribution and are well dispersed over the CNF surfaces. Electrochemical capacitors were fabricated using CNFs and Ni-grafted CNFs as the electrodes. The electrochemical capacitance was enhanced due to the presence of the Ni nanoparticles. This is attributed to the occurrence of the pseudocapacitance effect, enhanced electric double layer capacitance, and increased electrical conductivity. The enhancement was proportional to the Ni content and can be as high as 214%. The stability of the Ni-grafted CNF capacitor was demonstrated by subjecting the capacitor to a potential sweep at 500 mV s-1 for 500 cycles.",

author = "Chuang, {Chih Ming} and Huang, {Cheng Wei} and Hsisheng Teng and Ting, {Jyh Ming}",

year = "2010",

month = apr,

day = "27",

doi = "10.1149/1.3355939",

language = "English",

volume = "157",

pages = "K113--K117",

journal = "Journal of the Electrochemical Society",

issn = "0013-4651",

publisher = "Electrochemical Society, Inc.",

number = "5",

}

TY - JOUR

T1 - Enhancement of electrochemical capacitance using Ni-modified carbon nanofibers prepared by a hydrothermal process

AU - Chuang, Chih Ming

AU - Huang, Cheng Wei

AU - Teng, Hsisheng

AU - Ting, Jyh Ming

PY - 2010/4/27

Y1 - 2010/4/27

N2 - A hydrothermal method was used to graft Ni nanoparticles onto the surfaces of carbon nanofibers (CNFs). The Ni nanoparticles have a narrow size distribution and are well dispersed over the CNF surfaces. Electrochemical capacitors were fabricated using CNFs and Ni-grafted CNFs as the electrodes. The electrochemical capacitance was enhanced due to the presence of the Ni nanoparticles. This is attributed to the occurrence of the pseudocapacitance effect, enhanced electric double layer capacitance, and increased electrical conductivity. The enhancement was proportional to the Ni content and can be as high as 214%. The stability of the Ni-grafted CNF capacitor was demonstrated by subjecting the capacitor to a potential sweep at 500 mV s-1 for 500 cycles.

AB - A hydrothermal method was used to graft Ni nanoparticles onto the surfaces of carbon nanofibers (CNFs). The Ni nanoparticles have a narrow size distribution and are well dispersed over the CNF surfaces. Electrochemical capacitors were fabricated using CNFs and Ni-grafted CNFs as the electrodes. The electrochemical capacitance was enhanced due to the presence of the Ni nanoparticles. This is attributed to the occurrence of the pseudocapacitance effect, enhanced electric double layer capacitance, and increased electrical conductivity. The enhancement was proportional to the Ni content and can be as high as 214%. The stability of the Ni-grafted CNF capacitor was demonstrated by subjecting the capacitor to a potential sweep at 500 mV s-1 for 500 cycles.

UR - http://www.scopus.com/inward/record.url?scp=77951188699&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77951188699&partnerID=8YFLogxK

U2 - 10.1149/1.3355939

DO - 10.1149/1.3355939

M3 - Article

AN - SCOPUS:77951188699

VL - 157

SP - K113-K117

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

SN - 0013-4651

IS - 5

ER -

Enhancement of electrochemical capacitance using Ni-modified carbon nanofibers prepared by a hydrothermal process

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this