Affiliation:
1. Department of Electrical Engineering Kwangwoon University Seoul 01897 South Korea
2. Department of Physics Riphah International University Campus Lahore 54000 Pakistan
3. Department of Bioinformatics, School of Medical Informatics and Engineering Xuzhou Medical University Xuzhou 221004 P. R. China
4. Chemistry Department, College of Science King Saud University Riyadh 11451 Saudi Arabia
5. Department of Electrical Engineering College of Engineering King Saud University P.O. Box 800 Riyadh 11421 Saudi Arabia
6. Department of Electrical and Biological Physics Kwangwoon University Seoul South Korea
Abstract
Hybrid supercapacitor or supercapattery devices have gained significant attention for their impressive power (Pd) and energy densities (Ed), as well as their exceptional cyclic stability compared to traditional storage devices. In this study, manganese niobium sulfide (MnNbS) is synthesized using a hydrothermal method. To enhance the electrochemical performance of MnNbS, polyaniline (PANI) is blended at varying mass ratios. Initially, the electrochemical properties of MnNbS/PANI are evaluated using a three‐electrode configuration, consisting of working, counter, and reference electrodes. At a current density of 2 A g−1, MnNbS/PANI exhibits an improved specific capacity () of 1366 C g−1. Subsequently, to develop a supercapattery energy storage device, a two‐electrode system is constructed. This setup offers enhanced performance and flexibility, making it an ideal choice for high‐performance supercapacitors. Activated carbon (AC) and MnNbS/PANI are employed as the negative and positive electrodes, respectively, in the two‐electrode system. Notably, the device demonstrates outstanding energy density (Ed) of 26.2 Wh kg−1, power density (Pd) of 2072 W kg−1, and specific capacity of 118 C g−1. Furthermore, durability tests involving 1000 charge–discharge cycles reveal a capacity retention of 79%. This study suggests that MnNbS/PANI (at a weight ratio of 80/20%) holds promise as an electrode material for supercapattery applications.
Subject
Materials Chemistry,Electrical and Electronic Engineering,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics,Electronic, Optical and Magnetic Materials
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献