Structural, Morphological, and Electrochemical Characterization of Polypyrrole-Enhanced Reduced Graphene Oxide/NiCoFe2O4 Ternary Composite for High-Performance Supercapacitors

IF 3.6 4区工程技术 Q3 ENERGY & FUELS

Energy technology Pub Date : 2025-02-09 DOI:10.1002/ente.202402142

Ansari Novman Nabeel, Alok Jain, Kailash Chandra Juglan, Sunita Bhagwa, Sajid Naeem

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引用次数: 0

Abstract

Supercapacitors’ exceptional energy density, quick charge and discharge rates, and long cycle life make them extremely promising energy storage technologies. The investigation of electrochemical performance is improved by mixing conductive polymers with reduced graphene oxide (rGO) and nickel cobalt ferrite (NiCoFe₂O₄). It produces a binary rGO/NiCoFe₂O₄ composite synthesized by sol–gel autocombustion, which has a specific capacitance of 216.5 F g⁻¹ at 10 mV s⁻¹. A ternary PPy/rGO/NiCoFe₂O₄ composite is synthesized by adding polypyrrole (PPy), and at the same scan rate, it achieves a specific capacitance of 664.98 F g⁻¹. Nickel foam is used as a substrate material for the electrode, and 3 M KOH is used as an electrolyte for electrochemical analysis. A high energy density of 90 W kg⁻¹ and a power density of 1167.14 W kg⁻¹ are also observed by electrochemical investigation and it can be used for supercapacitor applications.

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高性能超级电容器用聚吡咯增强还原氧化石墨烯/NiCoFe2O4三元复合材料的结构、形态和电化学表征

超级电容器卓越的能量密度、快速的充放电速率和长循环寿命使其成为极有前途的储能技术。将导电聚合物与还原氧化石墨烯（rGO）和镍钴铁氧体（NiCoFe2O4）混合，改善了导电聚合物的电化学性能。采用溶胶-凝胶自燃烧法制备了rGO/NiCoFe2O4二元复合材料，该材料在10 mV s−1下的比电容为216.5 F g−1。通过添加聚吡咯（PPy）合成了三元PPy/rGO/NiCoFe2O4复合材料，在相同扫描速率下，其比电容达到664.98 F g−1。泡沫镍作为电极的衬底材料，3m KOH作为电解液进行电化学分析。电化学研究还发现，该材料具有90 W kg - 1的高能量密度和1167.14 W kg - 1的功率密度，可用于超级电容器。

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来源期刊

Energy technology ENERGY & FUELS-

CiteScore

7.00

自引率

5.30%

发文量

审稿时长

1.3 months

期刊介绍： Energy Technology provides a forum for researchers and engineers from all relevant disciplines concerned with the generation, conversion, storage, and distribution of energy. This new journal shall publish articles covering all technical aspects of energy process engineering from different perspectives, e.g., new concepts of energy generation and conversion; design, operation, control, and optimization of processes for energy generation (e.g., carbon capture) and conversion of energy carriers; improvement of existing processes; combination of single components to systems for energy generation; design of systems for energy storage; production processes of fuels, e.g., hydrogen, electricity, petroleum, biobased fuels; concepts and design of devices for energy distribution.