One pot synthesis of poly m-toluidine incorporated silver and silver oxide nanocomposite as a promising electrode for supercapacitor devices

Résumé

Abstract The design and fabrication of novel electrodes with strong electrochemical responses are crucial in advanced supercapacitor technology. In this study, a poly(m-toluidine)/silver-silver oxide (PMT/Ag-Ag 2 O) nanocomposite was prepared using the photopolymerization method. Various characterization techniques were employed to analyze the prepared nanomaterials. The resulting structure of Ag-Ag 2 O minimizes ion diffusion distances, increases active sites, and accelerates redox reactions. The electrochemical response of PMT and PMT/Ag-Ag 2 O electrodes was evaluated in three different electrolyte solutions (Na 2 SO 4 , H 2 SO 4 , and HCl). The specific capacitance of PMT/Ag-Ag 2 O nanocomposite was found to be higher than that of PMT alone. Among the tested electrolytes, HCl exhibited the highest specific capacitance of 443 F g −1 at a gravimetric current density of 0.4 A g −1 , surpassing H 2 SO 4 (104 F g −1 ) and Na 2 SO 4 (32 F g −1 ). Also, the PMT/Ag-Ag 2 O nanocomposite has demonstrated good cycling stability. It exhibited a high specific power density of 156 W Kg −1 and a specific energy density of 1.8 Wh Kg −1 . These results highlight the potential of the prepared PMT/Ag-Ag 2 O nanocomposite as a nanoelectrode material for high-performance supercapacitors.

Citer ce document

Accès au document

Texte intégral en lecture en ligne, réservé aux abonnés SPHAERO et aux membres de l'institution. Se connecter

Auteur(s)

Statistiques

Consultations : 1

Téléchargements : 0