{"title":"Effect of Preparation Methods on the Surface Characteristics of SiO2 and Al2O3 Nanoparticles","authors":"S. V. Mjakin, V. V. Syzrantsev","doi":"10.1134/S1087659624600534","DOIUrl":null,"url":null,"abstract":"<p>The acid–base properties of the surface of SiO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub> nanoparticles obtained by various methods are characterized by the adsorption of acid–base indicators and dynamic pH-metry. The effects of the applied synthetic approaches (including liquid phase and plasma-chemical processes, as well as electric explosion) on the functional composition of the studied materials (predominance of Lewis or Brønsted acid or basic sites with different p<i>K</i><sub>a</sub> values) and properties of suspensions prepared using the synthesized nanopowders are studied.</p>","PeriodicalId":580,"journal":{"name":"Glass Physics and Chemistry","volume":"50 3","pages":"295 - 300"},"PeriodicalIF":0.6000,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Glass Physics and Chemistry","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1087659624600534","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0
Abstract
The acid–base properties of the surface of SiO2 and Al2O3 nanoparticles obtained by various methods are characterized by the adsorption of acid–base indicators and dynamic pH-metry. The effects of the applied synthetic approaches (including liquid phase and plasma-chemical processes, as well as electric explosion) on the functional composition of the studied materials (predominance of Lewis or Brønsted acid or basic sites with different pKa values) and properties of suspensions prepared using the synthesized nanopowders are studied.
期刊介绍：
Glass Physics and Chemistry presents results of research on the inorganic and physical chemistry of glass, ceramics, nanoparticles, nanocomposites, and high-temperature oxides and coatings. The journal welcomes manuscripts from all countries in the English or Russian language.
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