Isacfranklin Melkiyur, Yuvakkumar Rathinam, Ravi Ganesan, Saravanakumar Balasubramaniam, Pannipara Mehboobali, Al-Sehemi Abdullah G, Velauthapillai Dhayalan
Department of Physics, Alagappa University, Karaikudi 630 003, Tamil Nadu, India.
SARP, LARPM, Central Institute of Plastic Engineering and Technology (CIPET), Bhubaneswar 751024, India.
ACS Omega. 2021 Mar 30;6(14):9471-9481. doi: 10.1021/acsomega.0c06167. eCollection 2021 Apr 13.
Electrochemical energy storage is a current research area to address energy challenges of the modern world. The CuFeSnS/PVP/rGO-decorated nanocomposite using PVP as the surface ligand was explored in a simple one-step solvothermal route, for studying their electrochemical behavior by designing asymmetric hybrid supercapacitor devices. The full cell three-electrode arrangements delivered 748 C/g (62.36 mA h/g) at 5 mV/s employing CV and 328 F/g (45.55 mA h/g) at 0.5 A/g employing GCD for the CuFeSnS/PVP/rGO electrode. The half-cell two-electrode device can endow with 73 W h/kg and 749 W/kg at 1 A/g energy and power density. Furthermore, two CuFeSnS/PVP/rGO//AC asymmetric devices connected in series for illuminating a commercial red LED more than 1 min were explored. This work focuses the potential use of transition-metal chalcogenide composite and introduces a new material for designing high-performance supercapacitor applications.
电化学储能是当前一个致力于应对现代世界能源挑战的研究领域。通过简单的一步溶剂热法探索了以聚乙烯吡咯烷酮（PVP）作为表面配体的CuFeSnS/PVP/rGO修饰的纳米复合材料，通过设计不对称混合超级电容器装置来研究其电化学行为。对于CuFeSnS/PVP/rGO电极，全电池三电极装置在5 mV/s下采用循环伏安法（CV）时的比电容为748 C/g（62.36 mA h/g），在0.5 A/g下采用恒流充放电法（GCD）时的比电容为328 F/g（45.55 mA h/g）。半电池双电极装置在1 A/g的能量和功率密度下可实现73 W h/kg和749 W/kg。此外，还探索了两个串联连接的CuFeSnS/PVP/rGO//活性炭（AC）不对称装置，用于点亮一个商用红色发光二极管超过1分钟。这项工作聚焦于过渡金属硫族化合物复合材料的潜在用途，并为设计高性能超级电容器应用引入了一种新材料。
