Glycerol Oxidation over Supported Gold Catalysts: The Combined Effect of Au Particle Size and Basicity of Support

Ekaterina Pakrieva; Ekaterina Kolobova; Dmitrii German; Marta Stucchi; Alberto Villa; Laura Prati; Sónia. A.C. Carabineiro; Nina Bogdanchikova; Vicente Cortés Corberán; Alexey Pestryakov

LAPSE

Living Archive for Process Systems Engineering

LAPSE:2021.0007

Published Article

LAPSE:2021.0007

Glycerol Oxidation over Supported Gold Catalysts: The Combined Effect of Au Particle Size and Basicity of Support

Ekaterina Pakrieva, Ekaterina Kolobova, Dmitrii German, Marta Stucchi, Alberto Villa, Laura Prati, Sónia. A.C. Carabineiro, Nina Bogdanchikova, Vicente Cortés Corberán, Alexey Pestryakov

February 3, 2021

Gold nanoparticles supported on various oxides (CeO2, CeO2/TiO2, MgO, MgO/TiO2, La2O3, La2O3/TiO2) (with 4 wt.% Au loading) were investigated in the liquid (aqueous) phase oxidation of glycerol by molecular oxygen under mild conditions, in the presence of alkaline earth (CaO, SrO and MgO) or alkaline (NaOH) bases. Full conversion and selectivity between 38 and 68% to sodium glycerate were observed on different Au supported catalysts (Au/MgO/TiO2, Au/La2O3/TiO2, Au/CeO2 and Au/CeO2/TiO2). The combined effect of Au particle size and basicity of the support was suggested as the determining factor of the activity. Agglomeration of gold nanoparticles, found after the reaction, led to the deactivation of the catalysts, which prevents the further oxidation of sodium glycerate into sodium tartronate. Promising results were obtained with the use of alkaline earth bases (CaO, SrO, MgO), leading to the formation of free carboxylic acids instead of salts, which are formed in the presence of the more usual base, NaOH.

Record ID

LAPSE:2021.0007

Keywords

base additives, catalyst selectivity, glyceric acid, glycerol oxidation, glycolic acid, gold catalysts, tartronic acid

Subject

Reaction Engineering

Suggested Citation

Pakrieva E, Kolobova E, German D, Stucchi M, Villa A, Prati L, Carabineiro SA, Bogdanchikova N, Cortés Corberán V, Pestryakov A. Glycerol Oxidation over Supported Gold Catalysts: The Combined Effect of Au Particle Size and Basicity of Support. (2021). LAPSE:2021.0007

Author Affiliations

Pakrieva E: Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Lenin Av. 30, 634050 Tomsk, Russia; Instituto de Catálisis y Petroleoquímica, Consejo Superior de Investigaciones Científicas, Marie Curie 2, 28 [ORCID]
Kolobova E: Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Lenin Av. 30, 634050 Tomsk, Russia
German D: Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Lenin Av. 30, 634050 Tomsk, Russia
Stucchi M: Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy [ORCID]
Villa A: Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy [ORCID]
Prati L: Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy [ORCID]
Carabineiro SA: LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal [ORCID]
Bogdanchikova N: Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, 22800 Ensenada, Mexico [ORCID]
Cortés Corberán V: Instituto de Catálisis y Petroleoquímica, Consejo Superior de Investigaciones Científicas, Marie Curie 2, 28049 Madrid, Spain [ORCID]
Pestryakov A: Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Lenin Av. 30, 634050 Tomsk, Russia

Journal Name

Processes

Volume

8

Issue

9

Article Number

E1016

Year

2020

Publication Date

2020-08-20