Hydrogen production by water spliting using (RaO)<sub>x</sub>(SiO<sub>2</sub>)<sub>y</sub>.H<sub>2</sub>O and gamma radiation

Ali I., Imanova G., Agayev T., Garibov A., Mansimov Z., Kurniawan T. A., ...More

RADIATION PHYSICS AND CHEMISTRY, vol.218, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 218
  • Publication Date: 2024
  • Doi Number: 10.1016/j.radphyschem.2024.111597
  • Journal Name: RADIATION PHYSICS AND CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Pollution Abstracts, Civil Engineering Abstracts
  • Azerbaijan State University of Economics (UNEC) Affiliated: No

Abstract

The (RaO)(x)(SiO2)(y).H2O compounds with various combinations have been produced, and characterized. The radium activities of these compounds were determined. These compounds were used to split water at different temperatures under the influence of gamma radiation. The yields of hydrogen at surface decomposition level with 6100 Bq/gr.s were 3-4 times higher than those at surface decomposition. The hydrogen production was about 30 times higher at 573 K with Ra-226 of 6100 Bk/gr.s activity in comparison to obtained at 300 K. The yield of hydrogen (573 K) was similar to 1.5 high in comparison to non-radioactive SiO2, which was owing to the stimulating impact of inner radiation. Molecular yields of hydrogen increased at different temperatures (300-573 K), H(H-2) = 2.61-160.3 molecule/100 eV.