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Prabha Materials Science Letters

ISSN: 2583-5114 . Open Access


Zinc Selenide (ZnSe) for Supercapacitor and Photocatalytic Applications

Zinc Selenide (ZnSe) for Supercapacitor and Photocatalytic Applications

S. Pavithra
Solid State Ionics Lab, Department of Applied Physics, Karunya Institute of Technology and Sciences, Coimbatore-641 114, Tamil Nadu, India.

C. Joelin
Solid State Ionics Lab, Department of Applied Physics, Karunya Institute of Technology and Sciences, Coimbatore-641 114, Tamil Nadu, India.

S. Rajesh
Solid State Ionics Lab, Department of Applied Physics, Karunya Institute of Technology and Sciences, Coimbatore-641 114, Tamil Nadu, India.

A. Sakunthala
Solid State Ionics Lab, Department of Applied Physics, Karunya Institute of Technology and Sciences, Coimbatore-641 114, Tamil Nadu, India.

DOI https://doi.org/10.33889/PMSL.2022.1.1.003

Received on April 26, 2022
  ;
Accepted on May 25, 2022

Abstract

Commercial Zinc Selenide (ZnSe) was explored as an electrode material for aqueous supercapacitor systems. The material was found to have a cubic structure with no impurities and hence as such subjected to the electrochemical properties in a three electrode system. The material was found to deliver a first cycle discharge capacitance of 106 F/g for a current density of 0.125A/g in the wide potential window of -0.8 to 0.5 V. The cycling efficiency of the commercial material was tested at a high current rate of 3 A/g. The material delivered a discharge capacitance of 16 F/g even after 1000 cycles. The used electrode after 1000 cycles was then explored for the photocatalytic efficiency. The dye degradation was about 78.96 % for methylene blue, indicating ZnSe to be a promising material for both the energy and environmental applications.

Keywords- Zinc selenide, Aqueous supercapacitor, Photocatalysis, Dye degradation, Environment.

Citation

Pavithra, S., Joelin, C., Rajesh, S., & Sakunthala, A. (2022). Zinc Selenide (ZnSe) for Supercapacitor and Photocatalytic Applications. Prabha Materials Science Letters, 1(1), 11-20. https://doi.org/10.33889/PMSL.2022.1.1.003.