Arrêt de service programmé du vendredi 10 juin 16h jusqu’au lundi 13 juin 9h. Pour en savoir plus
Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Direct introduction of redox centers at activated carbon substrate based on acid-substituent-assisted diazotization

Abstract :

Redox properties have been imparted to activated carbon with a high degree of functionalization by chemical grafting of 2-amino-4,5-dimethoxybenzoic add in situ diazotized. The diazotization reaction was accomplished in the presence or in the absence of HCl for estimating the positive or negative effect of the carboxylic acid substituent on the grafting yield. Thermal gravimetric analysis, X-ray photoelectron spectroscopy and cyclic voltammetry experiments show that when the carboxylic acid group participates to the diazotization reaction. the grafting yield is improved and becomes even better than when the carboxylic group is not present, increasing the capacitance of pristine carbon electrode from 120 to 200 F/g.

Type de document :
Article dans une revue
Domaine :
Liste complète des métadonnées

https://hal.univ-angers.fr/hal-03344556
Contributeur : Okina Univ Angers Connectez-vous pour contacter le contributeur
Soumis le : mercredi 15 septembre 2021 - 10:15:45
Dernière modification le : jeudi 9 décembre 2021 - 15:46:05

Identifiants

Citation

Estelle Lebègue, Thierry Brousse, O. Crosnier, Joël Gaubicher, Charles Cougnon. Direct introduction of redox centers at activated carbon substrate based on acid-substituent-assisted diazotization. Electrochemistry Communications, Elsevier, 2012, 25, pp.124-127. ⟨10.1016/j.elecom.2012.09.034⟩. ⟨hal-03344556⟩

Partager

Métriques

Consultations de la notice

4