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Electrochemical hydrogen storage behavior of single-walled carbon nanotubes (SWCNTs) coated with Ni nanoparticles

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ijhydene.2010.01.007 Byline: Chun-Chen Yang, Yingjeng James Li, Wei-Huang Chen Abstract: The electrochemical hydrogen storage properties of Ni nanoparticle coated SWCNT electrodes were investigated. A surface... Full description

Journal Title: International Journal of Hydrogen Energy March, 2010, Vol.35(6), p.2336(8)
Main Author: Yang, Chun - Chen
Other Authors: Li, Yingjeng James , Chen, Wei - Huang
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: Cengage Learning, Inc.
ID: ISSN: 0360-3199
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recordid: gale_ofa219465374
title: Electrochemical hydrogen storage behavior of single-walled carbon nanotubes (SWCNTs) coated with Ni nanoparticles
format: Article
creator:
  • Yang, Chun - Chen
  • Li, Yingjeng James
  • Chen, Wei - Huang
subjects:
  • Nanoparticles -- Chemical Properties
  • Nanoparticles -- Analysis
  • Nanoparticles -- Electric Properties
  • Nanotubes -- Chemical Properties
  • Nanotubes -- Analysis
  • Nanotubes -- Electric Properties
ispartof: International Journal of Hydrogen Energy, March, 2010, Vol.35(6), p.2336(8)
description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ijhydene.2010.01.007 Byline: Chun-Chen Yang, Yingjeng James Li, Wei-Huang Chen Abstract: The electrochemical hydrogen storage properties of Ni nanoparticle coated SWCNT electrodes were investigated. A surface modification technique enabled different amounts of Ni nanoparticles to be deposited on the SWCNT surface, which was first chemically oxidized by 6 N HNO.sub.3. The characteristic properties of the SWCNT samples coated with 4-12 wt.%Ni nanoparticles were examined using a scanning electron microscope with energy dispersive spectroscopy (SEM/EDX); micro-Raman spectroscopy; thermal analysis techniques consisting of both thermogravimetric analysis (TGA) and differential thermal analysis (DTA), and Brunauer-Emmett-Teller (BET) measurements. It was found that all of the SWCNT samples coated with 4-12 wt.%Ni nanoparticles possessed a similar pore-size distribution. According to the electrochemical test results, the highest electrochemical discharge capacity of 1404 mA h g.sup.-1 was obtained for the SWCNT electrode coated with 8 wt.%Ni nanoparticles, which corresponded to 5.27 wt.% hydrogen storage. This enhancement of electrochemical hydrogen storage capacity was ascribed to the fact that the Ni nanoparticles act as a redox site, thus leading to an improved electrochemical hydrogen storage capacity. The results indicated that the SWCNT coated with Ni nanoparticles are a potential material for hydrogen storage. Author Affiliation: Department of Chemical Engineering, Mingchi University of Technology, Taipei Hsien 243, Taiwan, ROC Article History: Received 20 August 2008; Revised 20 November 2009; Accepted 5 January 2010
language: English
source: Cengage Learning, Inc.
identifier: ISSN: 0360-3199
fulltext: no_fulltext
issn:
  • 0360-3199
  • 03603199
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titleElectrochemical hydrogen storage behavior of single-walled carbon nanotubes (SWCNTs) coated with Ni nanoparticles
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descriptionTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ijhydene.2010.01.007 Byline: Chun-Chen Yang, Yingjeng James Li, Wei-Huang Chen Abstract: The electrochemical hydrogen storage properties of Ni nanoparticle coated SWCNT electrodes were investigated. A surface modification technique enabled different amounts of Ni nanoparticles to be deposited on the SWCNT surface, which was first chemically oxidized by 6 N HNO.sub.3. The characteristic properties of the SWCNT samples coated with 4-12 wt.%Ni nanoparticles were examined using a scanning electron microscope with energy dispersive spectroscopy (SEM/EDX); micro-Raman spectroscopy; thermal analysis techniques consisting of both thermogravimetric analysis (TGA) and differential thermal analysis (DTA), and Brunauer-Emmett-Teller (BET) measurements. It was found that all of the SWCNT samples coated with 4-12 wt.%Ni nanoparticles possessed a similar pore-size distribution. According to the electrochemical test results, the highest electrochemical discharge capacity of 1404 mA h g.sup.-1 was obtained for the SWCNT electrode coated with 8 wt.%Ni nanoparticles, which corresponded to 5.27 wt.% hydrogen storage. This enhancement of electrochemical hydrogen storage capacity was ascribed to the fact that the Ni nanoparticles act as a redox site, thus leading to an improved electrochemical hydrogen storage capacity. The results indicated that the SWCNT coated with Ni nanoparticles are a potential material for hydrogen storage. Author Affiliation: Department of Chemical Engineering, Mingchi University of Technology, Taipei Hsien 243, Taiwan, ROC Article History: Received 20 August 2008; Revised 20 November 2009; Accepted 5 January 2010
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abstractTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ijhydene.2010.01.007 Byline: Chun-Chen Yang, Yingjeng James Li, Wei-Huang Chen Abstract: The electrochemical hydrogen storage properties of Ni nanoparticle coated SWCNT electrodes were investigated. A surface modification technique enabled different amounts of Ni nanoparticles to be deposited on the SWCNT surface, which was first chemically oxidized by 6 N HNO.sub.3. The characteristic properties of the SWCNT samples coated with 4-12 wt.%Ni nanoparticles were examined using a scanning electron microscope with energy dispersive spectroscopy (SEM/EDX); micro-Raman spectroscopy; thermal analysis techniques consisting of both thermogravimetric analysis (TGA) and differential thermal analysis (DTA), and Brunauer-Emmett-Teller (BET) measurements. It was found that all of the SWCNT samples coated with 4-12 wt.%Ni nanoparticles possessed a similar pore-size distribution. According to the electrochemical test results, the highest electrochemical discharge capacity of 1404 mA h g.sup.-1 was obtained for the SWCNT electrode coated with 8 wt.%Ni nanoparticles, which corresponded to 5.27 wt.% hydrogen storage. This enhancement of electrochemical hydrogen storage capacity was ascribed to the fact that the Ni nanoparticles act as a redox site, thus leading to an improved electrochemical hydrogen storage capacity. The results indicated that the SWCNT coated with Ni nanoparticles are a potential material for hydrogen storage. Author Affiliation: Department of Chemical Engineering, Mingchi University of Technology, Taipei Hsien 243, Taiwan, ROC Article History: Received 20 August 2008; Revised 20 November 2009; Accepted 5 January 2010
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