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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Influence of Support Basic Sites in Green Oxidation of Biobased Substrates Using Au-Promoted Catalysts

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Ferraz, Camila P. [1, 2] ; Zielinski, Michal [3] ; Pietrowski, Mariusz [3] ; Heyte, Svetlana [1] ; Dumeignil, Franck [1] ; Rossi, Liane M. [2] ; Wojcieszak, Robert [1]
Total Authors: 7
[1] Univ Lille, Univ Artois, CNRS, Cent Lille, ENSCL, UMR 8181, UCCS, F-59000 Lille - France
[2] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, Ave Lineu Prestes 748, BR-05508000 Sao Paulo - Brazil
[3] Adam Mickiewicz Univ, Fac Chem, Umultowska 89b, PL-61614 Poznan - Poland
Total Affiliations: 3
Document type: Journal article
Source: ACS SUSTAINABLE CHEMISTRY & ENGINEERING; v. 6, n. 12, p. 16332-16340, DEC 2018.
Web of Science Citations: 4

We report herein HMF (5-hydroxymethylfurfural) and furfural oxidation to 2,5-furandicarboxylic (FDCA) and furoic acids, respectively, in water, under base-free conditions and using supported gold nanoparticles. Prepared catalysts showed high catalytic activity under environmentally friendly conditions. Especially, the use of base-free conditions enables getting rid of the most usually needed neutralization step generating salts that must be further handled/eliminated. We showed that the conversion and the selectivity to desired products depend on the basicity of the support. To this respect, the Au/MgO catalyst was the most active sample (100% and 90% yields to furoic acid and 2,5-furandicarboxylic acid, respectively), although a partial leaching of Mg was observed (89 ppm). Novel Au/MgF2-MgO catalysts were also very active (97% yield of furoic acid) with a final pH of 7.5. High yields of acid were also obtained (78%) with an acid final pH of 3.8, actually enabling the isolation of products under their acid form directly from the reaction medium without a neutralization step. (AU)

FAPESP's process: 17/03235-0 - Biomass valorization through 5-hydroxymethylfurfural (HMF) oxidation catalyzed by AuPd nanoparticles
Grantee:Camila Palombo Ferraz
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor