{"title":"Fourier IR spectroscopy study of the radiation-thermal decomposition of water in the nano-ZrO2+nano-Al2O3+H2O system","authors":"T. Agayev, S. Melikova, N. Gadzhieva","doi":"10.30970/jps.24.2701","DOIUrl":null,"url":null,"abstract":"This paper presents the results of Fourier transform infrared spectroscopic studies of the radiation-thermal decomposition of water in the heterogeneous system nano-ZrO 2 +nano-Al 2 O 3 +H 2 O at various weight ratios of nano-oxides in the temperature range T = 373 ÷ 673 K and during radiation exposure. It has been established that the main intermediate products of radiation-heterogeneous decomposition of water are molecular oxygen and other oxygen-containing radical ion groups generated by gamma irradiation, as well as surface hydrides of zirconium and aluminum. Based on a comparative analysis of changes in the intensity of the absorption bands of molecular water and surface hydroxyl groups characterizing nano-ZrO 2 and nano-Al 2 O 3 as a function of temperature, the radiation-catalytic activity of nano-ZrO 2 was detected at a (cid:28)xed value of the absorbed dose. W RT (H 2 ) and its radiation-chemical yields G (H 2 ) were determined. A stimulating role in the radiation-thermal decomposition of H 2 O in a heterogeneous nano-ZrO 2 +nano-Al 2 O 3 system ( T = 373 ÷ 673 K) has been established. Fourier IR spectroscopy, nano-zirconium oxide, nano-aluminum oxide, γ -irradiation, radiation-thermal decomposition.","PeriodicalId":43482,"journal":{"name":"Journal of Physical Studies","volume":"12 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Physical Studies","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.30970/jps.24.2701","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
This paper presents the results of Fourier transform infrared spectroscopic studies of the radiation-thermal decomposition of water in the heterogeneous system nano-ZrO 2 +nano-Al 2 O 3 +H 2 O at various weight ratios of nano-oxides in the temperature range T = 373 ÷ 673 K and during radiation exposure. It has been established that the main intermediate products of radiation-heterogeneous decomposition of water are molecular oxygen and other oxygen-containing radical ion groups generated by gamma irradiation, as well as surface hydrides of zirconium and aluminum. Based on a comparative analysis of changes in the intensity of the absorption bands of molecular water and surface hydroxyl groups characterizing nano-ZrO 2 and nano-Al 2 O 3 as a function of temperature, the radiation-catalytic activity of nano-ZrO 2 was detected at a (cid:28)xed value of the absorbed dose. W RT (H 2 ) and its radiation-chemical yields G (H 2 ) were determined. A stimulating role in the radiation-thermal decomposition of H 2 O in a heterogeneous nano-ZrO 2 +nano-Al 2 O 3 system ( T = 373 ÷ 673 K) has been established. Fourier IR spectroscopy, nano-zirconium oxide, nano-aluminum oxide, γ -irradiation, radiation-thermal decomposition.