High-purity hydrogen gas production by catalytic thermal decomposition using mechanochemical treatment

Kanatip Kumproa, Apinon Nuntiya, Kibu Chiyo, Junya Kano, Fumio Saito

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The objectives of this work, were to produce high-purity hydrogen gas from rice husk by two-step process and to study the effect of nickel hydroxide/nickel acetate/sodium acetate and calcium hydroxide on the concentration of gaseous products. The samples were characterized by X-ray diffraction (XRD) and thermogravimetry-mass spectroscopy (TG/MS). The gaseous products were analyzed by gas chromatography (GC). The results indicated that hydrogen gas was produced from the milled samples by heating at 400-600 °C with the low concentrations of methane, carbon monoxide and carbon dioxide. The highest concentration of hydrogen gas from milled samples with the catalyst, was approximately 95-97 %mol. Furthermore, the milled samples with the carbon dioxide capture agent gave the carbon dioxide concentration, was below 2 %mol.

Original languageEnglish
Pages (from-to)17554-17562
Number of pages9
JournalInternational Journal of Hydrogen Energy
Issue number31
Publication statusPublished - 2014 Oct 22


  • Catalyst
  • Hydrogen gas
  • Mechanochemical
  • Planetary ball mill
  • Rice husk
  • Thermal decomposition

ASJC Scopus subject areas

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


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