Basivi Praveen Kumar, Ramesh Sivalingam, Kakani Vijay, Yadav H M, Bathula Chinna, Afsar N, Sivasamy Arumugam, Kim Heung Soo, Pasupuleti Visweswara Rao, Lee Handol
Department of Chemistry, Sri Venkateswara University, Tirupati, Andhra Pradesh, 517502, India.
Department of Mechanical, Robotics and Energy Engineering, Dongguk University -Seoul, Pil-dong, Jung-gu, 04620, Seoul, Republic of Korea.
Sci Rep. 2021 May 10;11(1):9918. doi: 10.1038/s41598-021-89430-x.
In this study, a novel nanohybrid composite containing nitrogen-doped multiwalled carbon nanotubes/carboxymethylcellulose (N-MWCNT/CMC) was synthesized for supercapacitor applications. The synthesized composite materials were subjected to an ultrasonication-mediated solvothermal hydrothermal reaction. The synthesized nanohybrid composite electrode material was characterized using analytical methods to confirm its structure and morphology. The electrochemical properties of the composite electrode were investigated using cyclic voltammetry (CV), galvanic charge-discharge, and electrochemical impedance spectroscopy (EIS) using a 3 M KOH electrolyte. The fabricated composite material exhibited unique electrochemical properties by delivering a maximum specific capacitance of approximately 274 F g at a current density of 2 A g. The composite electrode displayed high cycling stability of 96% after 4000 cycles at 2 A g, indicating that it is favorable for supercapacitor applications.
在本研究中，合成了一种用于超级电容器应用的新型纳米杂化复合材料，其包含氮掺杂多壁碳纳米管/羧甲基纤维素（N-MWCNT/CMC）。将合成的复合材料进行超声介导的溶剂热-水热反应。使用分析方法对合成的纳米杂化复合电极材料进行表征，以确认其结构和形态。使用3M KOH电解质，通过循环伏安法（CV）、恒流充放电和电化学阻抗谱（EIS）研究复合电极的电化学性能。所制备的复合材料通过在2 A g的电流密度下提供约274 F g的最大比电容，展现出独特的电化学性能。该复合电极在2 A g下经过4000次循环后显示出96%的高循环稳定性，表明其有利于超级电容器应用。
