Solid-State Preparation of MnOx catalysts for selective aerobic oxidation of 5-HMF to 2,5-FDCA in aqueous medium.
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| Title: | Solid-State Preparation of MnOx catalysts for selective aerobic oxidation of 5-HMF to 2,5-FDCA in aqueous medium. |
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| Authors: | Gaafar, Mostafa M.1,2 (AUTHOR), Elsayed, Islam1,2 (AUTHOR) iae10@msstate.edu, Hassan, El Barbary1 (AUTHOR) e.hassan@msstate.edu |
| Source: | Molecular Catalysis. Aug2026, Vol. 601, pN.PAG-N.PAG. 1p. |
| Abstract: | • A highly active MnO x catalyst synthesized via a simple, cost-effective method. • Selective aerobic oxidation of biomass-derived HMF to FDCA. • A 96.4% yield of FDCA was achieved using 1:2 (HMF: MnO x) at 120 °C for 11 h. • MnO x catalyst was recovered and reused over multiple consecutive runs. • The study offers a green, sustainable route to bioplastic production. The selective oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) offers a green, sustainable route to bioplastic production. However, developing highly efficient and affordable non-noble metal catalysts for this oxidation remains a challenge. This study reports a highly active MnO x catalyst synthesized via a simple, cost-effective, and environmentally benign solid-state method. The catalyst was characterized with several analytical techniques, such as BET, XPS, SEM, and XRD, which showed diffraction peaks corresponding to various manganese oxidation states, while BET measurements confirmed a mesoporous material with a high surface area of 284 m²/g. The XPS shows a high Mn3+ ratio of 56% in the freshly prepared MnO x , and 26% of the used catalyst, which can be attributed to the catalyst's activity. The catalytic performance was evaluated for the aerobic oxidation of HMF in water. Key parameters, including reaction time, catalyst loading, and temperature, were systematically optimized. Under the established optimal conditions (11 h, 120 °C, HMF: MnO x weight ratio of 1:2), a 96.4% yield of FDCA was achieved, with complete HMF conversion and full selectivity. The results suggest that the reaction proceeds via the formation of an HMFCA intermediate. After completing the reaction, the catalyst was recovered and reused over multiple consecutive runs with no significant loss in the catalytic activity performance. [Display omitted] [ABSTRACT FROM AUTHOR] |
| Copyright of Molecular Catalysis is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 195276651 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Solid-State Preparation of MnOx catalysts for selective aerobic oxidation of 5-HMF to 2,5-FDCA in aqueous medium. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Gaafar%2C+Mostafa+M%2E%22">Gaafar, Mostafa M.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Elsayed%2C+Islam%22">Elsayed, Islam</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> iae10@msstate.edu</i><br /><searchLink fieldCode="AR" term="%22Hassan%2C+El+Barbary%22">Hassan, El Barbary</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> e.hassan@msstate.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Molecular+Catalysis%22">Molecular Catalysis</searchLink>. Aug2026, Vol. 601, pN.PAG-N.PAG. 1p. – Name: Abstract Label: Abstract Group: Ab Data: • A highly active MnO x catalyst synthesized via a simple, cost-effective method. • Selective aerobic oxidation of biomass-derived HMF to FDCA. • A 96.4% yield of FDCA was achieved using 1:2 (HMF: MnO x) at 120 °C for 11 h. • MnO x catalyst was recovered and reused over multiple consecutive runs. • The study offers a green, sustainable route to bioplastic production. The selective oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) offers a green, sustainable route to bioplastic production. However, developing highly efficient and affordable non-noble metal catalysts for this oxidation remains a challenge. This study reports a highly active MnO x catalyst synthesized via a simple, cost-effective, and environmentally benign solid-state method. The catalyst was characterized with several analytical techniques, such as BET, XPS, SEM, and XRD, which showed diffraction peaks corresponding to various manganese oxidation states, while BET measurements confirmed a mesoporous material with a high surface area of 284 m²/g. The XPS shows a high Mn3+ ratio of 56% in the freshly prepared MnO x , and 26% of the used catalyst, which can be attributed to the catalyst's activity. The catalytic performance was evaluated for the aerobic oxidation of HMF in water. Key parameters, including reaction time, catalyst loading, and temperature, were systematically optimized. Under the established optimal conditions (11 h, 120 °C, HMF: MnO x weight ratio of 1:2), a 96.4% yield of FDCA was achieved, with complete HMF conversion and full selectivity. The results suggest that the reaction proceeds via the formation of an HMFCA intermediate. After completing the reaction, the catalyst was recovered and reused over multiple consecutive runs with no significant loss in the catalytic activity performance. [Display omitted] [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Molecular Catalysis is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.mcat.2026.116164 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Titles: – TitleFull: Solid-State Preparation of MnOx catalysts for selective aerobic oxidation of 5-HMF to 2,5-FDCA in aqueous medium. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Gaafar, Mostafa M. – PersonEntity: Name: NameFull: Elsayed, Islam – PersonEntity: Name: NameFull: Hassan, El Barbary IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 24688231 Numbering: – Type: volume Value: 601 Titles: – TitleFull: Molecular Catalysis Type: main |
| ResultId | 1 |
