Hydrogen yield from water radiolysis in the presence of zeolites

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 (GH2) 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. © Central European Science Journals. All rights reserved.