ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Development of CeCuO₃ nanomaterials anchored on rGO sheets utilized as excellent electrode materials for supercapacitor

Muhammad Imtiaz, Saira Riaz, Haifa A. Alyousef, B. M. Alotaibi, Albandari .W. Alrowaily, Eman Alzahrani, Abhinav Kumar, and Rizwan Ul Hassan

Centre of Excellence in Solid State Physics, University of the Punjab, Lahore, Pakistan

E-mail: imtiazkhosa699@gmail.com

Received: 27 October 2025  Accepted: 25 May 2026

Abstract:

The rise in energy consumption requires the progression of effective energy storing systems to fulfil the energy necessities. A feasible approach is the development of unique nanostructures, which have proven to be excellent materials in hybrid supercapacitor electrodes. A cerium-based binary metal oxide in the perovskite phase, CeCuO₃ (CCO), for its outstanding performance and cost-effectiveness when combined with the remarkably versatile reduced graphene oxide, was developed via hydrothermal approach. The composite manufacturing process provides a substantial electroactive surface area (SA) of 52.1 m²/g for pristine sample and an increased SA of 81.96 m²/g for rGO@CCO, contributing via BET analysis and structurally validated using X-ray diffraction, Infrared spectroscopy and SEM (scanning electron microscopy). The key highlights of the study were to assess the electrochemical evaluation of rGO@CeCuO₃ by cyclic voltammetry, impedance spectroscopic analysis and galvanostatic charging-discharging tests. The rGO@CCO sample attained a outstanding capacitance of 1242 F/g at an 1 A/g applied current density and an exceptionally negligible solution resistance of 0.82 Ω in a 3 M KOH electrolytic medium, maintaining excellent stability after 10000th CV cycles. This suggests that the potential applications for the fabricated electrode in next-generation flexible electronics include energy storage and conversion devices.

Keywords: Electrode material; Carbon; rGO@CCO; Energy storage devices; Supercapacitor

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-026-05119-3

Chemical Papers 80 (10) 12105–12118 (2026)