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Central European Journal of Chemistry

, Volume 2, Issue 1, pp 247–253 | Cite as

Hydrogen yield from water radiolysis in the presence of zeolites

  • Alexandru Cecal
  • Dan Colisnic
  • Karin Popa
  • Andrei O. Paraschivescu
  • Nicolae Bilba
  • Danut G. Cozma
Article
  • 45 Downloads

Abstract

This paper reports a study of the decomposition of water by gamma radiolysis in the presence of zeolites ZSM-5, SAPO-5, and MOR. The irradiation is performed using 60Co as a source with 1.12×1015 Bq activity at a 8.3 kGy/h dose rate. The stable products of radiolysis as well as the other chemical species are measured by mass spectrometry. The calculated radiation yield (GH 2) generally decreases in the order: H-ZSM-5>Na-ZSM-5>H-SAPO-5>MOR under the given experimental conditions; the yield is higher in the presence of these catalysts than in their absence.

Keywords

γ irradiation source hydrogen production zeolites 

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Copyright information

© Central European Science Journals 2004

Authors and Affiliations

  • Alexandru Cecal
    • 1
  • Dan Colisnic
    • 2
  • Karin Popa
    • 1
    • 2
  • Andrei O. Paraschivescu
    • 1
  • Nicolae Bilba
    • 1
  • Danut G. Cozma
    • 1
  1. 1.Faculty of Chemistry“Al. I. Cuza” UniversityIa§iRomania
  2. 2.Department of Radioisotopes, Institute of Organic Chemistry and BiochemistryAcademy of Sciences of the Czech RepublicPrague 6Czech Republic

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