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Catalysts 2019, 9(3), 248; https://doi.org/10.3390/catal9030248

Zeolites as Acid/Basic Solid Catalysts: Recent Synthetic Developments

1
Institute of Biostructures and Bioimaging, National Research Council, 80134 Naples, Italy
2
Institute of Crystallography, National Research Council, 70126 Bari, Italy
*
Author to whom correspondence should be addressed.
Received: 13 February 2019 / Revised: 28 February 2019 / Accepted: 1 March 2019 / Published: 8 March 2019
(This article belongs to the Special Issue Catalytic Transformation of Renewables (Olefin, Bio-sourced, et. al))

Abstract

The zeolites are porous solid structures characterized by a particular framework of aluminosilicates, in which the incorporation of the Al+3 ions generates an excess of negative charge compensated by cations (usually alkali or alkali earth) or protons. In the latter case, they are employed as catalysts for a wide variety of reactions, such as dehydration, skeletal isomerization and cracking, while the catalytic activity of basic zeolites has not found, up to now, any industrial or whatever relevant application in chemical processes. In the present review, we firstly intend to give an overview of the fundamental chemical composition, as well as the structural features of the zeolite framework. The purpose of this paper is to analyze their key properties as acid, both Lewis and Brønsted, and basic solid support. Their application as catalysts is discussed by reviewing the already published works in that field, and a final remark of their still unexplored potential as green, mild, and selective catalyst is also reported. View Full-Text
Keywords: zeolites; catalysis; solid acid; solid base; chemical modification; alkylation; glycosidation zeolites; catalysis; solid acid; solid base; chemical modification; alkylation; glycosidation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Verdoliva, V.; Saviano, M.; De Luca, S. Zeolites as Acid/Basic Solid Catalysts: Recent Synthetic Developments. Catalysts 2019, 9, 248.

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