Regulation of sorption processes in natural nanoporous aluminosilicates. 2. Determination of the ratio between active sites

详细信息    查看全文

• 作者：L. I. Bel’chinskaya ; N. A. Khodosova…
• 刊名：Protection of Metals and Physical Chemistry of Surfaces
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：52
• 期：4
• 页码：599-606
• 全文大小：308 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Tribology, Corrosion and Coatings
  Materials Science
  Metallic Materials
  Inorganic Chemistry
  Industrial Chemistry and Chemical Engineering
  Characterization and Evaluation Materials
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：2070-206X
• 卷排序：52

文摘

The ratio of acidic and basic sites on natural aluminosilicates (clinoptilolite, nontronite, and glauconite) and their acidic and basic forms were determined based on the catalytic activity of the samples in the reaction of methylbutynol (MBOH) conversion. Conversion of MBOH took place most fully on the natural zeolite (clinoptilolite). The reagent modification of clinoptilolite(treatment with sulfuric acid and alkali) reduced the ratio of acidic and basic sites. Conversion of MBOH on clay minerals increased in the acid-modified samples and decreased upon the alkali treatment, which corresponds to the change in the ratio of acidic and basic sites in both nontronite and glauconite, but to a greater extent in spherulite-like clay mineral glauconite.Original Russian Text © L.I. Bel’chinskaya, N.A. Khodosova, L.A. Novikova, O.Yu. Strel’nikova, F. Roessner, G.A. Petukhova, A.V. Zhabin, 2016, published in Fizikokhimiya Poverkhnosti i Zashchita Materialov, 2016, Vol. 52, No. 4, pp. 363–370.