A microstructural and neutron-diffraction study on the interactions between microwave-irradiated multiwalled carbon nanotubes and hydrogen

Y. T. Lee, P. J. Tsai, V. K. Peterson, B. Yang, K. S. Lin, M. Zhu, Kean Long Lim, Y. S. Tseng, S. L I Chan

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Microwave irradiation is a simple yet effective way of altering the properties of multiwalled carbon nanotubes (MWNTs). This work studies the interactions between microwave-irradiated MWNTs and hydrogen. Effects of MWNT diameter and irradiation duration on the hydrogen-storage capacity have been investigated. We find that microwave irradiation induces damage to the MWNTs that can enhance hydrogen-storage capacity, with excessive damage being detrimental. Smaller-diameter tubes suffer less damage than larger tubes do. MWNTs with a diameter of 20–40 nm irradiated for 10 min had the highest hydrogen uptake of the samples measured, of 0.87 wt% at room temperature and under a hydrogen pressure of 3 MPa. Neutron powder-diffraction data revealed structural changes that were consistent with the insertion of hydrogen in the interstitial cavities of the microwave-irradiated MWNTs, as well as an expansion between the graphene layers of samples that were microwave irradiated. Hence, this simple treatment could be a promising solution to improve the hydrogen-storage capacities of MWNTs.

Original languageEnglish
Pages (from-to)1308-1315
Number of pages8
JournalJournal of Materials Science
Volume51
Issue number3
DOIs
Publication statusPublished - 1 Feb 2016

Fingerprint

Multiwalled carbon nanotubes (MWCN)
Neutron diffraction
Hydrogen
Microwaves
Hydrogen storage
Microwave irradiation
Neutron powder diffraction
Graphite
Graphene
Irradiation

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

A microstructural and neutron-diffraction study on the interactions between microwave-irradiated multiwalled carbon nanotubes and hydrogen. / Lee, Y. T.; Tsai, P. J.; Peterson, V. K.; Yang, B.; Lin, K. S.; Zhu, M.; Lim, Kean Long; Tseng, Y. S.; Chan, S. L I.

In: Journal of Materials Science, Vol. 51, No. 3, 01.02.2016, p. 1308-1315.

Research output: Contribution to journalArticle

Lee, Y. T. ; Tsai, P. J. ; Peterson, V. K. ; Yang, B. ; Lin, K. S. ; Zhu, M. ; Lim, Kean Long ; Tseng, Y. S. ; Chan, S. L I. / A microstructural and neutron-diffraction study on the interactions between microwave-irradiated multiwalled carbon nanotubes and hydrogen. In: Journal of Materials Science. 2016 ; Vol. 51, No. 3. pp. 1308-1315.
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AU - Lin, K. S.

AU - Zhu, M.

AU - Lim, Kean Long

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