Fabrication and Electrochemical Properties of Nd-Doped Bismuth Ferriate@Ppy Nanocomposites via In Situ Polymerization

Neodymium-doped bismuth ferrite (Nd-BF) is a highly promising electrode material with unique properties, making it an excellent choice due to its wide voltage range and high specific capacitance. Additionally, it offers remarkable stability and can be easily synthesized through various methods. This paper presents the careful design and simple fabrication of Nd-BF@Ppy nanocomposites, specifically tailored for use in advanced supercapacitors. The architecture of the Nd-BF@Ppy nanocomposite is thoughtfully designed to maximize the electrode nanostructure's surface area and enhance porosity, thereby facilitating efficient electrolyte-ion mobility. The strategic arrangement of Ppy on Nd-BF has given the nanocomposite electrode a coral-like structure. This unique configuration has led to a reduction in ion pathways, enhanced accessibility to K+ ions, and a significant increase in surface area. The Nd-BF@Ppy nanocomposite electrode achieves a specific capacitance of 410 F g− 1. The improved electrochemical performance is mainly attributed to the innovative design and the synergistic properties of the nanocomposite components.