Synergistic Multioxide Nanoheterostructures for High-Performance Supercapacitors.

Authors

Amuthameena Subramanian, Balraj Baskaran, Rathinam Angamuthu, Jeeva Thangaraj

Published in

ChemPlusChem. Volume 91. Issue 7. Pages e70199.

Abstract

Advancing multifunctional electrode materials is crucial for next-generation energy technologies. In this work, SnO₂/ZnO/CdO nanocomposites were engineered to synergistically enhance charge transfer and electrochemical performance for efficient energy storage, which was evaluated through supercapacitor studies. Structural analysis confirmed the tetragonal rutile phase of SnO₂, the hexagonal phase of ZnO and the face-centered cubic structure of CdO. Energy-dispersive X-ray spectroscopy verified elemental composition, while optical and Raman analyses revealed size and surface defect characteristics. Electrochemical measurements through cyclic voltammetry and galvanostatic charge-discharge exhibited a high specific capacitance of 556.81 F g^-1, reflecting superior charge storage behavior. It was inferred that ZnO improved electronic conductivity, CdO increased carrier density and ion mobility inside the electrode, while SnO₂ offered structural stability and high theoretical capacity.

PMID:
42402220
Bibliographic data and abstract were imported from PubMed on 06 Jul 2026.

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