Ultrasonication-mediated nitrogen-doped multiwalled carbon nanotubes involving carboxy methylcellulose composite for solid-state supercapacitor applications

Praveen Kumar Basivi; Sivalingam Ramesh; Vijay Kakani; H M Yadav; Chinna Bathula; N Afsar; Arumugam Sivasamy; Heung Soo Kim; Visweswara Rao Pasupuleti; Handol Lee

doi:10.1038/s41598-021-89430-x

Ultrasonication-mediated nitrogen-doped multiwalled carbon nanotubes involving carboxy methylcellulose composite for solid-state supercapacitor applications

Sci Rep. 2021 May 10;11(1):9918. doi: 10.1038/s41598-021-89430-x.

Authors

Affiliations

¹ Department of Chemistry, Sri Venkateswara University, Tirupati, Andhra Pradesh, 517502, India.
² Department of Mechanical, Robotics and Energy Engineering, Dongguk University -Seoul, Pil-dong, Jung-gu, 04620, Seoul, Republic of Korea.
³ Department of Integrated System and Engineering, School of Global Convergence Studies, Inha University, 100 Inha-ro, Nam-gu, Incheon, 22212, Republic of Korea.
⁴ Department of Energy and Materials Engineering, Dongguk University -Seoul, Pil-dong, Jung-gu, Seoul, 04620, Republic of Korea.
⁵ Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Pildong-ro 1 gil, Jung-gu, Seoul, 04620, Republic of Korea.
⁶ PG & Research Department of Chemistry, L. N. Government College, Ponneri, Tamil Nadu, 601204, India.
⁷ Chemical Engineering Area, Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai, 600020, India.
⁸ Department of Biomedical Sciences and Therapeutics, Faculty of Medicine and Health Sciences, University of Malaysia Sabah, Kota Kinabalu, 88400, Sabah, Malaysia. pvrao@ums.edu.my.
⁹ Department of Biochemistry, Faculty of Medicine and Health Sciences, Abdurrab University, Jl Riau Ujung No. 73, Pekanbaru, Riau, 28292, Indonesia. pvrao@ums.edu.my.
¹⁰ Department of Environmental Engineering, Inha University, 100 Inha-ro, Nam-gu, Incheon, 22212, South Korea. leehd@inha.ac.kr.

Abstract

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^-1 at a current density of 2 A g^-1. The composite electrode displayed high cycling stability of 96% after 4000 cycles at 2 A g^-1, indicating that it is favorable for supercapacitor applications.