Enhanced Electrochemical Performance of Cuco2o4@Nitrogen-Doped Carbon Composite As a Promising Electrode for High-Performance Supercapacitors Publisher



Narimisa S ; Mouradzadegun A ; Ganjali MR ; Zargar B
Source: Results in Engineering Published:2025

Abstract

In this study, we report the preparation of a composite comprising the unique structure of copper cobaltite and N-doped porous carbon. This composite, designated CuCo2O4@NDC(1), features a meticulously engineered three-dimensional rimous architecture of CuCo2O4 that facilitates extensive interfacial contact between the electrolyte solution and the electrode. Such a design is pivotal in enhancing both ion and electron transport, which significantly improves the material's ability to store charge. Simultaneously, the nitrogen-doped carbon materials (NDC) significantly improve electrochemical characteristics. In these modified materials, there is plentiful nitrogen doping and a high specific surface area, which boosts conductivity and electron transfer in carbon materials. The CuCo2O4@NDC(1) composite exhibits a high specific capacitance of 1107 F g−1 at 1 A g−1 and excellent cycling stability of 81 % after 1000 cycles. Moreover, the asymmetric supercapacitor assembled by CuCo2O4@NDC(1) (as a positive electrode) and NDC (as a negative electrode) displayed an energy density of 43.55 W h kg−1 at 800 W kg−1. Copyright © 2025. Published by Elsevier B.V.