resumo
The microporous framework copper silicates CuSH-1NaK (1) and SGU-29 (2) - prepared using hydrothermal conditions - are effective heterogeneous oxidation catalysts for producing benzaldehyde (BzAld) and benzoic acid (BzAcid) from benzyl alcohol (BzOH), under mild reaction conditions (approximately atmospheric pressure, 70 degrees C). The copper silicate heterogeneous catalysts triggered a radical reaction mechanism leading to the target products; in particular, BzAcid was formed in up to 94 % yield and 100 % selectivity from BzAld. The type of oxidant and solvent influenced the catalytic performances.
palavras-chave
CATALYTIC FAST PYROLYSIS; SELECTIVE OXIDATION; COMPLEXES; ACETONITRILE; BIOMASS
categoria
Chemistry
autores
Neves, P; Valente, AA; Lin, Z
nossos autores
Anabela Tavares Aguiar Valente
Investigador Principal
Patrícia dos Santos Neves
Investigador Auxiliar
Zhi Lin
Investigador Principalagradecimentos
This work was developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020 & UIDP/50011/2020, financed by national funds through the FCT/MEC and when appropriate co-financed by FEDER under the PT2020 Partnership Agreement, and the project POCI-01-0145-FEDER-030075 co-funded by POCI (Programa Operacional Competitividade e Internacionalizacao), FEDER (Fundo Europeu de Desenvolvimento Regional) and by national funds (OE), through FCT/MCTES. P. N. thanks OE, through FCT, I.P., in the scope of the framework contract foreseen in the numbers 4, 5 and 6 of the article 23, of the Decree-Law 57/2016, of August 29, changed by Law 57/2017, of July 19.