Fourier-IR Spectroscopic Study of Radiation-Thermal Water Decomposition in the Nano-ZrO<sub>2</sub> + Nano-SiO<sub>2</sub> + H<sub>2</sub>O System

Agayev T. N., Melikova S. Z., Gadzhieva N. N., Tagiyev M. M.

NANOTECHNOLOGIES IN RUSSIA, vol.15, no.2, pp.158-162, 2020 (ESCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 15 Issue: 2
  • Publication Date: 2020
  • Doi Number: 10.1134/s1995078020020032
  • Journal Name: NANOTECHNOLOGIES IN RUSSIA
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus, FRANCIS, Compendex
  • Page Numbers: pp.158-162
  • Azerbaijan State University of Economics (UNEC) Affiliated: Yes

Abstract

Using Fourier transform IR spectroscopy, the radiation-thermal decomposition of water in the nano-ZrO2 + nano-SiO2 + H2O system in the temperature range of T = 373-673 K under the influence of gamma-rays was studied. It is shown that water adsorption in zirconium and silicon nanooxides occurs by the molecular and dissociative mechanisms. Intermediate-active products of the radiation-heterogeneous decomposition of water-zirconium and silicon hydrides, hydroxyl groups-have been registered. The values of the velocities and radiation-chemical yields of molecular hydrogen during the radiolysis of water in the presence of nano-ZrO2 + nano-SiO2 mixtures were determined. It was revealed that the values of the velocities and radiation-chemical yields decrease on going from nano-ZrO2 to nano-SiO2. The stimulating role of radiation in the radiation-thermal decomposition of water in the temperature range of T = 373-673 K is shown.