ZnO Nano-Flowers Assembled on Carbon Fiber Textile for High-Performance Supercapacitor’s Electrode

Qasim Abbas,Rafael Luque,Idrees Asim,Munirah Albaqami,Sajid Siyal,Ammar Tighezza,Awais Ahmad,Muhammad Javed

doi:10.3390/coatings11111337

Abstract

Herein, a crystalline nano-flowers structured zinc oxide (ZnO) was directly grown on carbon fiber textile (CFT) substrate via a simple hydrothermal process and fabricated with a binder-free electrode (denoted as ZnO@CFT) for supercapacitor (SC) utilization. The ZnO@CFT electrode revealed a 201 F·g−1 specific capacitance at 1 A·g−1 with admirable stability of >90% maintained after 3000 cycles at 10 A·g−1. These impressive findings are responsible for the exceedingly open channels for well-organized and efficient diffusion of effective electrolytic conduction via ZnO and CFT. Consequently, accurate and consistent structural and morphological manufacturing engineering is well regarded when increasing electrode materials’ effective surface area and intrinsic electrical conduction capability. The crystalline structure of ZnO nano-flowers could pave the way for low-cost supercapacitors.

Highlights

Significant efforts have been made to develop electrochemically efficientenergy storing and converting devices such as batteries, supercapacitors (SCs), and fuel cells [1]
A number of studies have shown that transition metal oxides, such as RuO2 [6,7], MnO2 [8], Fe3O4 [9], and zinc oxide (ZnO) [10], in their respective oxidation states have been studied extensively for SC applications
Studies on the ZnO-flower electrode’s electrochemical properties revealed a high excellent specific capacitance of 201 F·g−1 at a current density of 1 and high stability of >90% capacitance maintained after 3000 cycles at 10 A·g−1

Summary

Introduction

Significant efforts have been made to develop electrochemically efficientenergy storing and converting devices such as batteries, supercapacitors (SCs), and fuel cells [1].

Results

Conclusion