Issue 16, 2023

Upgrading the reflux method as novel route for competitive catalysts in alkane selective oxidation

Abstract

In the present article we show that, although the reflux method is not common for the synthesis of multicomponent MoVTeNbO catalysts, an optimized reflux synthesis of metallic precursors leads to efficient materials for the oxidative dehydrogenation of ethane and the selective oxidation of propane into acrylic acid, with the results at the same level as those of the best catalysts reported in the literature to date. It has been demonstrated that the reflux temperature is of paramount importance to achieve active and selective catalysts. Thus, the incorporation of vanadium and niobium to a polyoxometalate in the catalyst precursors is favored by refluxing at 110 °C, promoting the formation of the desired orthorhombic M1 phase. Additionally, the incorporation in the synthesis gel of cations such as ammonium or methylammonium provokes a further improvement of the catalytic performance whenever the activation procedure is carefully controlled.

Graphical abstract: Upgrading the reflux method as novel route for competitive catalysts in alkane selective oxidation

Supplementary files

Article information

Article type
Paper
Submitted
16 mar 2023
Accepted
09 iyl 2023
First published
10 iyl 2023
This article is Open Access
Creative Commons BY-NC license

Catal. Sci. Technol., 2023,13, 4802-4812

Upgrading the reflux method as novel route for competitive catalysts in alkane selective oxidation

A. Massó Ramírez, A. de Arriba, F. Ivars-Barceló, A. Ykrelef, B. Solsona and J. M. López Nieto, Catal. Sci. Technol., 2023, 13, 4802 DOI: 10.1039/D3CY00372H

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