Tailored texture synthesized LDH catalysts in the presence of quaternary ammonium salts

Bogdan Cojocaru; Bogdan Ciprian Jurca; Rodica Zăvoianu; Ruxandra Bîrjega; Vasile I. Pârvulescu; Octavian Dumitru Pavel

Catalysis Communications (Oct 2022)

Tailored texture synthesized LDH catalysts in the presence of quaternary ammonium salts

Bogdan Cojocaru,
Bogdan Ciprian Jurca,
Rodica Zăvoianu,
Ruxandra Bîrjega,
Vasile I. Pârvulescu,
Octavian Dumitru Pavel

Affiliations

Bogdan Cojocaru: University of Bucharest, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, 4-12 Regina Elisabeta Blv., S3, 030018 Bucharest, Romania; University of Bucharest, Faculty of Chemistry, Research Center for Catalysts & Catalytic Processes, 4-12 Regina Elisabeta Blv., S3, 030018 Bucharest, Romania
Bogdan Ciprian Jurca: University of Bucharest, Faculty of Chemistry, Research Center for Catalysts & Catalytic Processes, 4-12 Regina Elisabeta Blv., S3, 030018 Bucharest, Romania; University of Bucharest, Faculty of Chemistry, Department of Physical Chemistry, 4-12 Regina Elisabeta Blv., S3, 030018 Bucharest, Romania
Rodica Zăvoianu: University of Bucharest, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, 4-12 Regina Elisabeta Blv., S3, 030018 Bucharest, Romania; University of Bucharest, Faculty of Chemistry, Research Center for Catalysts & Catalytic Processes, 4-12 Regina Elisabeta Blv., S3, 030018 Bucharest, Romania
Ruxandra Bîrjega: National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, PO Box MG-16, 077125 Măgurele, Romania
Vasile I. Pârvulescu: University of Bucharest, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, 4-12 Regina Elisabeta Blv., S3, 030018 Bucharest, Romania; University of Bucharest, Faculty of Chemistry, Research Center for Catalysts & Catalytic Processes, 4-12 Regina Elisabeta Blv., S3, 030018 Bucharest, Romania; Corresponding authors at: University of Bucharest, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, 4-12 Regina Elisabeta Blv., S3, 030018 Bucharest, Romania.
Octavian Dumitru Pavel: University of Bucharest, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, 4-12 Regina Elisabeta Blv., S3, 030018 Bucharest, Romania; University of Bucharest, Faculty of Chemistry, Research Center for Catalysts & Catalytic Processes, 4-12 Regina Elisabeta Blv., S3, 030018 Bucharest, Romania; Corresponding authors at: University of Bucharest, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, 4-12 Regina Elisabeta Blv., S3, 030018 Bucharest, Romania.

Journal volume & issue: Vol. 170
p. 106485

Abstract

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Tetramethylammonium- and tetrabutylammonium-hydroxides operate as alternative bases to the traditional inorganic ones for the LDH structures synthesis with controlled texture. This is valuable for both co-precipitation and mechano-chemical routes, where these organic bases limited the production of wastewaters by more than ten times, the contamination of hydrotalcites with other metallic cations, an important decrease of the energy consumed in the synthesis and, also as a template for generating predetermined porosity. The crystallinity of the produced LDH is influenced by the nature of the alkyl ammonium cation. The catalytic behavior of the catalysts has been evaluated in the cyanoethylation, Claisen-Schmidt and self-cyclohexanone condensation.

Published in Catalysis Communications

ISSN: 1566-7367 (Print); 1873-3905 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/catalysis-communications

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