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Tremendous development in the field of portable electronics and hybrid electric vehicles has led to urgent and increasing demand in the field of high-energy storage devices. In recent years, many research efforts have been made for the development of more efficient energy-storage devices such as supercapacitors, batteries, and fuel cells. In particular, supercapacitors have great potential to meet the demands of both high energy density and power density in many advanced technologies. For the last half decade, graphene has attracted intense research interest for electrical double-layer capacitor (EDLC) applications. The unique electronic, thermal, mechanical, and chemical characteristics of graphene, along with the intrinsic benefits of a carbon material, make it a promising candidate for supercapacitor applications. This Review focuses on recent research developments in graphene-based supercapacitors, including doped graphene, activated graphene, graphene/metal oxide composites, graphene/polymer composites, and graphene-based asymmetric supercapacitors. The challenges and prospects of graphene-based supercapacitors are also discussed.
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http://dx.doi.org/10.1002/chem.201403649 | DOI Listing |
Langmuir
September 2025
Key Laboratory of Advanced Light Conversion Materials and Biophotonics, School of Chemistry and Life Resources, Renmin University of China, Beijing 100872, China.
Supercapacitors serve as an important complement to batteries in sustainable energy storage and utilization systems, necessitating the efficient preparation of high-performance electrodes for practical applications. Here, we present a scalable one-step strategy for fabricating integrated graphene/polyaniline electrodes directly on current collectors, enabled by the dual functionality of HSO in a rapid 20 min process. Initially, dilute HSO acts as a protonation medium to facilitate the oxidative polymerization of aniline by ammonium persulfate.
View Article and Find Full Text PDFNanomaterials (Basel)
July 2025
Department of Applied Science and Technology, DISAT, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
The increasing demand for efficient and sustainable energy conversion technologies has driven extensive research into alternative electrocatalysts for the oxygen reduction reaction (ORR). Platinum-based catalysts, while highly efficient, suffer from high costs, scarcity, and long-term instability Laser-Induced Graphene (LIG) has recently attracted considerable interest as an effective metal-free electrocatalyst for oxygen reduction reaction (ORR), owing to its remarkable electrical conductivity, customizable surface functionalities, and multi-scale porous architecture. This review explores the synthesis strategies, physicochemical properties, and ORR catalytic performance of LIG.
View Article and Find Full Text PDFLangmuir
July 2025
School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China.
Electrochemical exfoliation of graphite is a cost-effective and eco-friendly method for producing graphene, which is regarded as a promising electrode material for supercapacitor, and the electrolyte may affect the product structure and capacitance properties remarkably. In this work, we examine the effects of anions in the electrolyte on the internal and surficial structures of the synthesized graphene. SO anions help produce graphene with the highest specific surface area and a moderate amount of oxygen groups, leading to optimal double-layer capacitance and pseudocapacitance.
View Article and Find Full Text PDFChem Commun (Camb)
June 2025
Centre for Nano and Material Sciences, Jain (Deemed-to-be University), Jain Global Campus, Kanakapura Road, Bangalore 562112, Karnataka, India.
The most intriguing 2D form of carbon, graphene, is composed of a thin layer of tightly spaced carbon atoms. Since its discovery, graphene has fascinated researchers owing to its distinct electrical, chemical, and mechanical properties and large surface area. Graphene is the most efficient electrode material for supercapacitor applications because of its distinctive properties.
View Article and Find Full Text PDFNanoscale Adv
June 2025
Chemistry Department, College of Natural and Computational Sciences, Wollega University P.O. Box 395 Nekemte Ethiopia
Graphene is suitable for aerospace and space engineering because its single carbon layer exhibits excellent mechanical, electrical and thermal characteristics. Its tensile strength, which exceeds that of steel by 100 times, together with its high conductivity and thermal stability position graphene as an effective performance booster for spacecraft systems. Herein, we examine how graphene serves different space-based functions, starting with reinforcement supports and moving to thermal applications and radiative safety, before investigating energy storage methods.
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