{"title":"Dual role of ZnO and its impact on thermal and structural properties of tellurium-vanadate glass system","authors":"","doi":"10.1016/j.jnoncrysol.2024.123137","DOIUrl":null,"url":null,"abstract":"<div><p>In the present study, we have reported the synthesis and characteristic properties of <em>x</em>ZnO-(60−<em>x</em>)TeO<sub>2</sub>-40V<sub>2</sub>O<sub>5</sub> (<em>x</em> = 20, 25, 30, 35, and 40 mol%) glass systems. The conventional melt-quenching method is adopted for the synthesis. The effect of ZnO concentration on the glass network has been studied using Raman and IR studies. The glass transition temperature (<span><math><msub><mi>T</mi><mi>g</mi></msub></math></span>) was found to increase with ZnO content. Structural analysis showed the presence of TeO<sub>4,</sub> TeO<sub>3+1</sub> and TeO<sub>3</sub> groups along with VO<sub>4</sub> and VO<sub>5</sub> coordinated vanadium groups. XPS analysis of oxygen (O 1s core level) spectra showed an initial increase in non-bridging oxygen by ∼ 62.27 %. However, it starts decreasing by ∼ 53.77 % with a further increase in ZnO content. The changes observed in the system are attributed to ZnO acting as a network modifier at lower concentrations however, as the ZnO content keeps increasing, it starts acting as a network former.</p></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":null,"pages":null},"PeriodicalIF":3.2000,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Non-crystalline Solids","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022309324003144","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0
Abstract
In the present study, we have reported the synthesis and characteristic properties of xZnO-(60−x)TeO2-40V2O5 (x = 20, 25, 30, 35, and 40 mol%) glass systems. The conventional melt-quenching method is adopted for the synthesis. The effect of ZnO concentration on the glass network has been studied using Raman and IR studies. The glass transition temperature () was found to increase with ZnO content. Structural analysis showed the presence of TeO4, TeO3+1 and TeO3 groups along with VO4 and VO5 coordinated vanadium groups. XPS analysis of oxygen (O 1s core level) spectra showed an initial increase in non-bridging oxygen by ∼ 62.27 %. However, it starts decreasing by ∼ 53.77 % with a further increase in ZnO content. The changes observed in the system are attributed to ZnO acting as a network modifier at lower concentrations however, as the ZnO content keeps increasing, it starts acting as a network former.
期刊介绍:
The Journal of Non-Crystalline Solids publishes review articles, research papers, and Letters to the Editor on amorphous and glassy materials, including inorganic, organic, polymeric, hybrid and metallic systems. Papers on partially glassy materials, such as glass-ceramics and glass-matrix composites, and papers involving the liquid state are also included in so far as the properties of the liquid are relevant for the formation of the solid.
In all cases the papers must demonstrate both novelty and importance to the field, by way of significant advances in understanding or application of non-crystalline solids; in the case of Letters, a compelling case must also be made for expedited handling.