电位滴定法
滴定法
格兰图
化学
无机化学
滴定曲线
有机化学
离子
作者
А. В. Швец,M. M. Kurmach,K. M. Konysheva,O.I. Lozovytska,Nataliya Shcherban
标识
DOI:10.1016/j.mtchem.2024.101921
摘要
The method of potentiometric titration and corresponding determination of pKa of acid sites by the Gran method was applied for hierarchical zeolite materials. For hierarchical Al-, Ga- and B-silicate zeolites of MOR, BEA, MFI and MTW structural types with the morphology of aggregated nanosheets, nanorods or close to spherical nanoparticles, the distribution of acid sites by strength was determined. The dependence of the acidity spectrum (strength of acid sites) on the type of zeolite structure and the nature of an isomorphously substituted cation, on the one hand, and on the morphology of zeolite nanocrystals, on the other hand, was demonstrated.
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