Hierarchically MOx@Nb-zeolites for the ...
Document type :
Article dans une revue scientifique
Permalink :
Title :
Hierarchically MOx@Nb-zeolites for the selective oxidation of HMF to HMFCA
Author(s) :
El Fergani, Magdi [Auteur]
University of Bucharest [UniBuc]
Candu, Natalia [Auteur]
University of Bucharest [UniBuc]
Granger, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Coman, Simona M. [Auteur]
University of Bucharest [UniBuc]
Parvulescu, Vasile I. [Auteur]
University of Bucharest [UniBuc]
University of Bucharest [UniBuc]
Candu, Natalia [Auteur]
University of Bucharest [UniBuc]
Granger, Pascal [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Coman, Simona M. [Auteur]
University of Bucharest [UniBuc]
Parvulescu, Vasile I. [Auteur]
University of Bucharest [UniBuc]
Journal title :
Catalysis Today
Pages :
267-276
Publisher :
Elsevier BV
Publication date :
2022-12
ISSN :
0920-5861
HAL domain(s) :
Chimie/Catalyse
English abstract : [en]
The oxidation of 5-hydroxymethylfurfural (HMF) to 5-hydroxymethyl-2-furancarboxylic acid (HMFCA) has been investigated on MOx@Nb-zeolite catalytic systems (where MOx = CoOx, MnOx or FeOx and zeolite - USY and Beta) with ...
Show more >The oxidation of 5-hydroxymethylfurfural (HMF) to 5-hydroxymethyl-2-furancarboxylic acid (HMFCA) has been investigated on MOx@Nb-zeolite catalytic systems (where MOx = CoOx, MnOx or FeOx and zeolite - USY and Beta) with hierarchical texture and acid-base properties. These catalysts were exhaustively characterized by several techniques such as XRD, adsorption-desorption of liquid nitrogen at 77 K, CO2- and NH3-TPD, DRIFT, XPS, and SS NMR. The new hierarchically catalysts produced HMFCA with a selectivity of 97.0% for a XHMF = 95.0% (Mn@Nb-Y30). A synergetic effect between MOx and Nb species in the activation of t-BuOOH and oxidation of HMF has been identified. The absence of FDCA in the reaction products using MOx@Nb-zeolite catalysts can be due to the preponderant presence of the acidic sites (associated to both framework and extra framework AlOx) which prevent a further oxidation of HMFCA to FDCA.Show less >
Show more >The oxidation of 5-hydroxymethylfurfural (HMF) to 5-hydroxymethyl-2-furancarboxylic acid (HMFCA) has been investigated on MOx@Nb-zeolite catalytic systems (where MOx = CoOx, MnOx or FeOx and zeolite - USY and Beta) with hierarchical texture and acid-base properties. These catalysts were exhaustively characterized by several techniques such as XRD, adsorption-desorption of liquid nitrogen at 77 K, CO2- and NH3-TPD, DRIFT, XPS, and SS NMR. The new hierarchically catalysts produced HMFCA with a selectivity of 97.0% for a XHMF = 95.0% (Mn@Nb-Y30). A synergetic effect between MOx and Nb species in the activation of t-BuOOH and oxidation of HMF has been identified. The absence of FDCA in the reaction products using MOx@Nb-zeolite catalysts can be due to the preponderant presence of the acidic sites (associated to both framework and extra framework AlOx) which prevent a further oxidation of HMFCA to FDCA.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois
CNRS
Centrale Lille
ENSCL
Univ. Artois
Collections :
Research team(s) :
Remédiation et matériaux catalytiques (REMCAT)
Submission date :
2024-04-05T12:01:35Z