| Texto completo | |
| Autor(es): |
Ferraz, Camila P.
[1, 2]
;
Zielinski, Michal
[3]
;
Pietrowski, Mariusz
[3]
;
Heyte, Svetlana
[1]
;
Dumeignil, Franck
[1]
;
Rossi, Liane M.
[2]
;
Wojcieszak, Robert
[1]
Número total de Autores: 7
|
| Afiliação do(s) autor(es): | [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
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ACS SUSTAINABLE CHEMISTRY & ENGINEERING; v. 6, n. 12, p. 16332-16340, DEC 2018. |
| Citações Web of Science: | 4 |
| Resumo | |
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) | |
| Processo FAPESP: | 17/03235-0 - Valorização da biomassa oxidação do 5-hidroximetilfurfural (HMF) catalisada por nanopartículas |
| Beneficiário: | Camila Palombo Ferraz |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado |