Ternary composite of unzipped multiwalled carbon nanotubes (curved graphenes) for next-generation capatteries

Title

Ternary composite of unzipped multiwalled carbon nanotubes (curved graphenes) for next-generation capatteries

Creator

Aswathi, V.P.; Sreeja, P.B.

Description

Polyaniline (PANI) and Nickel ferrite (NiFe2O4) based hybrid materials have garnered significant interest in energy storage applications because of their exceptional electrical conductivity, redox properties, and structural stability. In this study, a hybrid ternary composite combining UzMWCNT with NiFe2O4 and PANI (UzMWCNT/NiFe2O4/PANI) is successfully synthesized using a two-step synthesis method involving hydrothermal and in-situ polymerization, as an efficient electrode material for supercapacitor application. The crystalline structure, functional groups, and surface morphology of the synthesized composite materials were analyzed through X-ray diffraction studies (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The electrochemical performance was evaluated utilizing cyclic voltammetry (CV), galvanostatic chargedischarge (GCD), and electrochemical impedance spectroscopy (EIS). The interaction between the various components and the unique composition structure yields a specific capacitance of 1022 F g?1 at 1 A g?1, with a capacitance retention of 84 % after 2000 GCD cycles. The synthesized ternary hybrid composite maximizes the accessibility of multiple active sites while reinforcing structural stability, enhancing its energy storage performance. The research unveils the compelling advantages of the UzMWCNT/NiFe2O4/PANI ternary composite, positioning it as a cutting-edge candidate for next-generation energy storage devices. 2025 Elsevier Inc.

Source

Journal of Colloid and Interface Science;Volume;693;Issue;;Article No.;137637;

Date

01-01-2025

Publisher

Academic Press Inc.

Subject

Conducting polymer; Energy storage; Ferrites; Supercapacitor; UzMWCNT (Unzipped multiwalled carbon nanotubes)

Coverage

Aswathi V.P., CHRIST University, Department of Chemistry, Karnataka, Bengaluru, 560029, India; Sreeja P.B., CHRIST University, Department of Chemistry, Karnataka, Bengaluru, 560029, India

Rights

Restricted Access; Hardcopy may be available in the library

Relation

ISSN: 219797; CODEN: JCISA

Format

online

Language

English

Type

Article

Identifier

https://doi.org/10.1016/j.jcis.2025.137637

https://www.scopus.com/pages/publications/105002845230?origin=resultslist