ZrAl-和SnAl-BEA级沸石中Sn和Zr含量对过氧化氢氧化环己酮酸性和催化性能的影响

IF 0.7 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Theoretical and Experimental Chemistry Pub Date : 2023-05-19 DOI:10.1007/s11237-023-09765-6

M. M. Kurmach, A. O. Samotoi, S. O. Sotnik, P. S. Yaremov, O. V. Shvets, N. D. Scherban

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引用次数: 0

摘要

采用水热法合成了一系列具有BEA结构类型的ZrAl-和snal -硅酸盐分级沸石，并研究了它们在环己酮氧化与过氧化氢反应中的酸性和催化性能。对于SnAl-BEA分子筛，在0.83 ~ 2.5 mol %Sn范围内，随着样品中锡含量的增加和Lewis酸位浓度的增加，环己酮转化为ε-己内酯的转化率也随之增加，而对于ZrAl-BEA分子筛，当Zr为1.33 mol %时，转化率达到最大值(80%)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Effect of Sn and Zr Content in ZrAl- and SnAl-BEA Hierarchical Zeolites on Their Acidic and Catalytic Properties in the Process of Cyclohexanone Oxidation with Hydrogen Peroxide

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Effect of Sn and Zr Content in ZrAl- and SnAl-BEA Hierarchical Zeolites on Their Acidic and Catalytic Properties in the Process of Cyclohexanone Oxidation with Hydrogen Peroxide

Series of ZrAl- and SnAl-silicate hierarchical zeolites of the BEA structural type have been synthesized by hydrothermall method, and their acidic and catalytic properties in the reaction of cyclohexanone oxidation with hydrogen peroxide have been investigated. For SnAl-BEA zeolites, the conversion of cyclohexanone into ε-caprolactone increases as the tin content in the samples increases in the range of 0.83-2.5 mole%Sn and the concentration of Lewis acid sites increases, while for ZrAl-BEA zeolites, the maximum value of conversion (80%) is achieved for the sample with 1.33 mole % Zr.

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来源期刊

Theoretical and Experimental Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.60

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Theoretical and Experimental Chemistry is a journal for the rapid publication of research communications and reviews on modern problems of physical chemistry such as: a) physicochemical bases, principles, and methods for creation of novel processes, compounds, and materials; b) physicochemical principles of chemical process control, influence of external physical forces on chemical reactions; c) physical nanochemistry, nanostructures and nanomaterials, functional nanomaterials, size-dependent properties of materials.