| Texto completo | |
| Autor(es): |
Bitencourt, Gustavo F.
;
Vasconcelos, Sancler
;
Andrade, Luana S.
;
Rossa, Vinicius
;
Quattrociocchi, Daniel G. S.
;
Carvalho, Wagner A.
;
Roz, Mohamad El
;
Mandelli, Dalmo
;
Lima, Thiago M.
Número total de Autores: 9
|
| Tipo de documento: | Artigo Científico |
| Fonte: | APPLIED ORGANOMETALLIC CHEMISTRY; v. 39, n. 8, p. 20-pg., 2025-08-01. |
| Resumo | |
Furfural (FUR), a valuable platform molecule derived from lignocellulosic biomass, is a promising feedstock for producing furfural acetone (FAc) through aldol condensation reactions, offering pathways to various chemical products. However, identifying efficient and sustainable catalysts for FAc production remains challenging. Here, we introduce a novel strategy employing Fe-MIL-88B and Fe-MIL-88B-NH2 metal-organic frameworks (MOFs) composed of nonnoble metals designed to enhance catalytic efficiency in FUR conversion. In contrast to conventional synthesis methods, our approach integrates magnetic stirring during solvothermal synthesis, promoting defect formation that improves the structural and catalytic properties of the MOFs without requiring additional reagents. Extensive characterization confirmed these structural improvements, while a statistical design of experiments guided the optimization of catalytic parameters for the FUR-acetone reaction. Thermal pretreatment emerged as a critical factor in driving high FAc selectivity. Catalytic tests showed that MOFs synthesized with stirring exhibited significantly greater selectivity than those synthesized without stirring. Furthermore, functionalization with amino groups (-NH2) reduced FUR conversion. The optimized catalyst, Fe-MIL-88B-s, achieved a remarkable 99.4% conversion and 99.9% selectivity for FAc, demonstrating stability across three cycles. This work provides a sustainable approach to catalyzing furanic conversions using defect-engineered, nonnoble metal MOFs. It underscores the potential of simplified, scalable methods for defect induction to expand MOF applications in sustainable chemical transformations. (AU) | |
| Processo FAPESP: | 23/08875-8 - Redes metalorgânicas (MOFs) como catalisadores heterogêneos para obtenção de produtos oxigenados a partir da oxidação direta do metano |
| Beneficiário: | Gustavo Felix Bitencourt |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado Direto |
| Processo FAPESP: | 21/09775-1 - Novos catalisadores multifuncionais de estruturas metal-orgânicas para oxidação leve de metano a metanol |
| Beneficiário: | Luana dos Santos Andrade |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 18/01258-5 - Novos processos catalíticos e fotocatalíticos para a conversão direta de metano e CO2 em produtos |
| Beneficiário: | José Maria Correa Bueno |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 21/10885-6 - Catalisadores híbridos de clusters de óxido metálico@MOF: síntese via deposição por camada atômica e aplicação na oxidação catalítica de metano |
| Beneficiário: | Gustavo Felix Bitencourt |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado Direto |