超级电容器
材料科学
电容
碳纳米管
纳米技术
电容感应
纳米材料
电极
二极管
电化学
化学工程
光电子学
电气工程
化学
工程类
物理化学
作者
Jai Bhagwan,Jeong In Han
标识
DOI:10.1016/j.ceramint.2023.12.382
摘要
In this work, LiCo2O4 nanoplates are prepared by simplest and most adoptable co-precipitation technique. The prepared nanomaterial is figured out by several characteristic techniques. Thereafter, LiCo2O4 nanoplates are used for supercapacitor and specific capacitance of 951 F g−1 is observed at 1 A g−1. Further, capacitive performance of LiCo2O4 nanoplates is enhanced by adding up the appropriate quantity of multi-walled carbon nanotubes (MWCNTs) and high specific capacitance of 1373 F g−1 is observed at 1 A g−1. Owing the good specific capacitance of MWCNT/LiCo2O4, hybrid supercapacitor is designed where MWCNT/LiCo2O4 and activated carbon (AC) are utilized as positive (+ve) and negative (-ve) electrodes, correspondingly. Furthermore, the electrochemical performance of MWCNT/LiCo2O4//AC is investigated. The high energy density of 54.84 W h kg−1 at 775 W kg−1 is received from MWCNT/LiCo2O4//AC hybrid supercapacitor. Additionally, two red color light emitted diodes (LEDs), toy motor fan and kitchen timer are functionalized by two MWCNT/LiCo2O4//AC hybrid supercapacitors connected in series.
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