Titre :

Synthesis and investigation of two new crystalline organic inorganic nano-hybrids based on wells-dawson vanadotungstates and 1h-1, 2, 4-triazole as electro- and photocatalysts

Auteur(s) :

Hajizadeh, Fatemeh [Auteur]
Zonoz, Farrokhzad Mohammadi [Auteur]
Duval, Sylvain [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Maleki, Behrooz [Auteur]
Amiri, Amirhassan [Auteur]

Titre de la revue :

Journal of Molecular Structure

Nom court de la revue :

J. Mol. Struct.

Numéro :

1224

Date de publication :

2021-01-15

ISSN :

0022-2860

Mot(s)-clé(s) en anglais :

Inorganic-organic nano-hybrid
Crystal structure
Electrocatalytic activity
Photocatalyst
Wells-Dawson structure
Polyoxometalate

Discipline(s) HAL :

Chimie/Chimie inorganique

Résumé en anglais : [en]

Two new Wells–Dawson polyoxometalate-based organic-inorganic hybrid materials, namely, {[O]2.75[trz]7[α2-P2W17VO62]•12H2O}2(1) and {[O]11.5[trz]7[α2-P2W14.4V3.6O62]}2(2) (trz=1-H-1,2,4-triazole) were synthesized under ...
Lire la suite >Two new Wells–Dawson polyoxometalate-based organic-inorganic hybrid materials, namely, {[O]2.75[trz]7[α2-P2W17VO62]•12H2O}2(1) and {[O]11.5[trz]7[α2-P2W14.4V3.6O62]}2(2) (trz=1-H-1,2,4-triazole) were synthesized under mildconditions, and characterized by FT-IR, 1H NMR and 31P NMR spectroscopy, powder X-ray diffraction, TGA, field emission SEM and cyclic voltammetry. These hybrids constructed from trz ligand and Wells–Dawson polyoxoanions, in which trzis connected to a mono-vanadium substituted [α2-P2W17VO62]7− in 1 and a hexa-vanadium substituted [P2W12V6O62]12−in 2 by hydrogen bonding interactions. The structures of 1 and 2 were determined by single-crystal X-ray diffraction. Electrocatalytical activities of compounds 1 and 2 in the form of modified carbon paste electrode (MCPE) towards the reduction of nitrite ion have been studied in different pH values at acidic buffer solutions. Compounds 1-MCPE and 2-MCPE exhibit good electrocatalytical activity for reduction of NO2−. Also, the photocatalytical properties of the compounds 1 and 2 for the degradation of methylene blue have been studied.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Équipe(s) de recherche :

Matériaux hybrides (MATHYB)

Date de dépôt :

2022-03-02T07:15:10Z