Catalytic effect of MWCNTs on the dehydrogenation behavior of LiAlH 4

Wei Che Hsu, Cheng Hsien Yang, Wen Ta Tsai

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17 Citations (Scopus)

Abstract

Dehydrogenation behavior of LiAlH4 (lithium alanate) admixed with multi-walled carbon nanotubes (MWCNTs) was investigated by using high-pressure thermal gravimetric analysis (HPTGA) and in-situ synchrotron X-ray diffraction (XRD) technique. HPTGA results indicated that MWCNTs play a catalytic role in the dehydrogenation of LiAlH4, subsequently decreasing the dehydrogenation temperature and improving the desorption kinetics. With the proper amount of MWCNT, the initial dehydrogenation temperature of LiAlH4 decreased by approximately 60 °C. Furthermore, in-situ synchrotron XRD analysis confirmed the dehydrogenation reaction products and paths of LiAlH4, with and without MWCNT addition.

Original languageEnglish
Pages (from-to)927-933
Number of pages7
JournalInternational Journal of Hydrogen Energy
Volume39
Issue number2
DOIs
Publication statusPublished - 2014 Jan 13

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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