Hydrogenation of furfural-to-furfuryl alcohol over La-based inorganic perovskites: A study of oxygen vacancies as catalytic descriptors

Yamkela Nzuzo; Sinemihlali Ntshibongo; Leah Matsinha; Adedapo Adeyinka; Kingsley O. Obodo; Ndzondelelo Bingwa

Catalysis Communications (Aug 2023)

Hydrogenation of furfural-to-furfuryl alcohol over La-based inorganic perovskites: A study of oxygen vacancies as catalytic descriptors

Yamkela Nzuzo,
Sinemihlali Ntshibongo,
Leah Matsinha,
Adedapo Adeyinka,
Kingsley O. Obodo,
Ndzondelelo Bingwa

Affiliations

Yamkela Nzuzo: Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, PO Box 524, Auckland Park, 2006 Johannesburg, South Africa
Sinemihlali Ntshibongo: Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, PO Box 524, Auckland Park, 2006 Johannesburg, South Africa
Leah Matsinha: Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, PO Box 524, Auckland Park, 2006 Johannesburg, South Africa
Adedapo Adeyinka: Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, PO Box 524, Auckland Park, 2006 Johannesburg, South Africa
Kingsley O. Obodo: HySA Infrastructure Centre of Competence, Faculty of Engineering, North-West University, Private Bag X6001, Potchefstroom 2531, South Africa
Ndzondelelo Bingwa: Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, PO Box 524, Auckland Park, 2006 Johannesburg, South Africa; Corresponding author.

Journal volume & issue: Vol. 181
p. 106717

Abstract

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Herein we report chemoselective hydrogenation of furfural to furfuryl-alcohol over ABO3 inorganic perovskites containing inexpensive and abundant transition metals (LaMO3 M = Co, Mn, Fe). Firstly, the perovskite catalysts were fully characterized and found to have surface areas ranging from 10 to 30 m2/g. Secondly, the anionic defects within the perovskite lattices were determined using X-ray photoelectron spectroscopy (XPS) and Density Functional Theory (DFT) calculations and quantified in terms of the amount of oxygen vacancies. The catalysts with the highest amount of oxygen vacancies were found to be the least active in the hydrogenation of furfural at high H2 pressure.

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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