Facile Synthesis of Polypyrrole Coated Nickel Oxide Nanosheets for Electrochemical Supercapacitor Application

Udayraj T. Pawar

doi:10.1016/j.synthmet.2026.118168

Facile Synthesis of Polypyrrole Coated Nickel Oxide Nanosheets for Electrochemical Supercapacitor Application

2026-04-25

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AI

U

Udayraj T. Pawar

A

Avinash C. Molane

S

Shivani S. Gavande

K

Kranti P. Patil

P

Prakash A. Mahanwar

V

V. B. Patil *

DOI：10.1016/j.synthmet.2026.118168

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• Facile electrodeposition yields high-performance NiO/PPy nanocomposites with a tailored hybrid morphology. • NiO/PPy exhibits a high specific capacitance of 1351.46 F/g, significantly outperforming individual NiO and PPy components. • Optimized NiO/PPy retains 91.52% of its capacitance after extended cycling, demonstrating excellent stability. • The composite delivers high specific power (5.69 kW/kg) and energy density (74.77 Wh/kg), indicating strong energy storage capability. • Symmetric supercapacitor devices based on NiO/PPy show outstanding electrochemical stability and practical applicability.

Keywords:

NiO/PPy nanocomposite

electrochemical supercapacitor

specific capacitance

energy density

electrodeposition

Facile Synthesis of Polypyrrole Coated Nickel Oxide Nanosheets for Electrochemical Supercapacitor Application

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