Electrochemical evaluation of ZnO and PAN-based carbon nanofibers composite for high-performance supercapacitor application

IF 2.4 4区化学 Q3 CHEMISTRY, PHYSICAL

Ionics Pub Date : 2024-10-07 DOI:10.1007/s11581-024-05869-8

Dadaso D. Mohite, Sachin S. Chavan, Sumit Dubal, P. E. Lokhande, Vishal Kadam, Chaitali Jagtap, Udayabhaskar Rednam, Sabah Ansar, Yedluri Anil Kumar

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Abstract

The material used for electrodes greatly affects the electrochemical performance of a supercapacitor. This study utilized electrospinning to create ZnO/Polyacrylonitrile (PAN) composite-based nanofibers, which were then heat-treated to form carbon nanofibers (CNFs). The ZnO/PAN-NFs and the resulting ZnO and PAN CNFs were thoroughly characterized for their crystallographic and morphological properties. Electrodes made from ZnO and PAN-based CNFs demonstrated a peak capacitance of 163.44 F g⁻¹ at a scan rate of 10 mV s⁻¹, which is a 64% increase over electrodes made from PAN CNFs, in addition to enhanced cyclic stability and rate capability. An asymmetric supercapacitor constructed with ZnO/PAN-CNFs//AC showed an energy density of 6.1 Wh kg⁻¹ and a power density of 1000 W kg⁻¹. The device also exhibited outstanding longevity and electrochemical reversibility, maintaining 84% of its specific capacitance after 5000 cycles. This research seeks to investigate the unique structural and electrochemical properties of the electrospun ZnO/PAN nanocomposite material, contributing to the advancement of high-performance supercapacitor electrodes.

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来源期刊

Ionics 化学-电化学

CiteScore

5.30

自引率

7.10%

发文量

427

审稿时长

2.2 months

期刊介绍： Ionics is publishing original results in the fields of science and technology of ionic motion. This includes theoretical, experimental and practical work on electrolytes, electrode, ionic/electronic interfaces, ionic transport aspects of corrosion, galvanic cells, e.g. for thermodynamic and kinetic studies, batteries, fuel cells, sensors and electrochromics. Fast solid ionic conductors are presently providing new opportunities in view of several advantages, in addition to conventional liquid electrolytes.