Highly Effective Non‐Noble MnO2 Catalysts for 5‐Hydroxymethylfurfural Oxidation to 2,5‐Furandicarboxylic Acid

• Published in: ChemSusChem Vol. 17; no. 14; pp. e202400115 - n/a
• Main Authors: Álvarez‐Hernández, Débora, Megías‐Sayago, Cristina, Penkova, Anna, Centeno, Miguel Ángel, Ivanova, Svetlana
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 22.07.2024
• Subjects: 2,5-furandicarboxylic acid; 5-hydroxymethylfurfural oxidation; Catalysts; Catalytic activity; Catalytic converters; crystal structure; Hydroxymethylfurfural; Manganese dioxide; MnO2; Noble metals; Oxidation
• ISSN: 1864-5631; 1864-564X; 1864-564X
• DOI: 10.1002/cssc.202400115

Noble metal‐free catalyst or catalytic oxidation of 5‐hydroxymethylfurfural into 2,5‐furandicarboxylic acid are proposed in this study as a proposal to solve one of the great disadvantages of this reaction of using preferably noble metal‐based catalysts. The catalytic activity of six MnO2 crystal structures is studied as alternative. The obtained results showed a strong connection between catalytic activity the type of MnO2 structure organization and redox behavior. Among all tested catalysts, ϵ‐MnO2 showed the best performance with an excellent yield of 74 % of 2,5‐furandicarboxylic acid at full ‐hydroxymethylfurfural conversion. Insert text for Table of Contents here. Use of transition metal oxide (MnO2) as an alternative to noble metal catalysts in the oxidation of 5‐hydroxymethylfurfural (HMF) into 2,5‐furandicarboxylic acid (FDCA). Evidence for structure and redox behavior dependence of the desired product yield.