Article
Nanoscience & Nanotechnology
Yanliang Zhao, Fei Liu, Zhanyong Zhao, Peikang Bai, Yong Ma, A. Alhadhrami, Gaber A. M. Mersal, Zhiping Lin, Mohamed M. Ibrahim, Zeinhom M. El-Bahy
Summary: In this study, a novel method using two-dimensional lamellar graphene oxide and nano-rod KCu7S4 to prepare ink suitable for 3D printing is proposed. The printed rGO/KCu7S4 electrode shows excellent capacitance performance and cycle stability.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Chemistry, Analytical
Likun Li, Junfu Chen, Haitao Gao, Fengmei Liu, Zhenglong Li, Qi Li, Jun Zhang
Summary: In this study, a hierarchical sandwich-type NiFe layered double hydroxide/reduced graphene oxide (NiFe-LDHs/rGO) composite electrode material was successfully synthesized. The composite electrode exhibited high specific capacitance and good cycling performance. Additionally, an asymmetric supercapacitor assembled with NiFe-LDHs/rGO as the positive electrode demonstrated high energy density and cycling stability. These results indicate the potential application of NiFe-LDHs/rGO composite in high-performance supercapacitors.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Electrochemistry
Yuru Ge, Zaichun Liu, Yuping Wu, Rudolf Holze
Summary: This study examined and compared representative supercapacitor electrode materials including activated carbon, MgCo2O4, and MnO2 in terms of mass utilization, active layer thickness, rate of electrode potential change, and current density. The conclusions highlight the importance of utilization and rational design, with suggestions for proper data reporting for meaningful comparison of results.
ELECTROCHIMICA ACTA
(2021)
Review
Chemistry, Physical
Guangwei Shao, Rui Yu, Nanliang Chen, Meidan Ye, Xiang Yang Liu
Summary: This review comprehensively discusses the advantages, preparation strategies, and interface issues of stretchable supercapacitors, introduces the research progress of multifunctional stretchable supercapacitors, and highlights the challenges and possible solutions for future development.
Review
Energy & Fuels
Intan Syafiqah Ismail, Muhamad Farhan Haqeem Othman, Nor Adilla Rashidi, Suzana Yusup
Summary: There is a pressing need to mitigate and reduce the abundance of food waste globally. Biochar derived from food waste is a sustainable method that utilizes available biomass and helps to preserve the ecosystem by addressing environmental concerns. This review focuses on the utilization of food waste-based biochar as advanced electrode materials in energy storage devices. It discusses the current exploration and production technologies of food waste-based biochar through thermochemical conversion methods, such as combustion, gasification, and pyrolysis. The limitations and potential applications of food waste-based biochar are also elaborated.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Energy & Fuels
Sibel Yazar, Busra Arvas, Melih Besir Arvas, Cigdem Yolacan, Yucel Sahin
Summary: This study presents a supercapacitor designed for flexible and wearable textile systems operating in environments similar to biological fluids. The supercapacitor exhibits high specific capacitance, good charging/discharging stability, and high energy density, making it suitable for wearable electronic systems.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Zijie Guo, Wutao Wei, Juan Shi, Pengpeng Wang, Zisen Ye, Liwei Mi
Summary: Without adding any additional solvent, the crystal water in the reactant provides a liquid environment directly for the reaction, allowing the whole reaction to be carried out safely and efficiently in a less-liquid reaction system. Furthermore, NiS2 in a cotton-like form was synthesized under the spatial effect of NaCl solution in a confined space. The fabricated material has a tight structure and abundant active sites, which promote rapid charge transport. This study provides a general strategy for preparing metal sulfides and suggests a new direction for improving electrochemical performance in less-liquid reaction systems without additional solvents.
Article
Electrochemistry
Sara Yaseen, Abdul Ghafar Wattoo, Abid Inayat, Tauseef Shahid, Mohammed Rafi Shaik, Mujeeb Khan, Zhenlun Song, Syed Mustansar Abbas
Summary: This study presents the synthesis of bimetallic oxide (NiO/Mn2O3) as a positive electrode material for supercapacitor applications. The optimized composition, structure, and morphology of the material result in exceptional electrochemical performance. The unique bipyramid-like morphology provides a large specific surface area and active sites for efficient ion transfer. The NiO-50 % Mn2O3 electrode exhibits the highest specific capacitance and long-term cycling stability, making it a promising candidate for supercapacitor electrodes.
ELECTROCHIMICA ACTA
(2023)
Article
Nanoscience & Nanotechnology
Lin Shan, Yu Zhang, Ying Xu, Minjie Gao, Ting Xu, Chuanling Si
Summary: In this study, a supercapacitor electrode with high-rate performance was successfully constructed using readily available cedar branches through carbonization and activation. The carbonization temperature and process were optimized, resulting in a high specific capacitance and good rate capability. After compounding with MnO2, the composite electrode exhibited even higher specific capacitance. The assembled symmetric supercapacitor showed a high energy density, offering an idea for developing clean and efficient new energy technologies with high-rate performance.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Review
Biotechnology & Applied Microbiology
Qidi Liang, Yaxuan Wang, Yanfan Yang, Ting Xu, Ying Xu, Qingshuang Zhao, Su-Hak Heo, Min-Seok Kim, Young-Hwan Jeong, Shuangquan Yao, Xueping Song, Sun-Eun Choi, Chuanling Si
Summary: This review summarizes the research progress of nanocellulose/two dimensional nanomaterials composites for supercapacitors, focusing on applications of nanocellulose/MXene and nanocellulose/graphene composites. The article highlights the potential application prospects of nanocellulose in supercapacitor electrode materials due to its excellent performance.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Energy & Fuels
Ukrit Jitropas, Worasarit Saengsui, Worawat Meevasana
Summary: One of the remarkable characteristics of supercapacitors is their ability to rapidly charge/discharge compared to a battery. To address the adverse effect of increased charging rate on capacitance reduction, a planar interdigitated electrode is implemented. By utilizing cyclic voltammetry, the specific capacitance of different patterns of carbon-based planar electrodes and conventional sandwich supercapacitors are investigated. All planar samples show increased capacitance even after a 50-fold increase in scan rate, and the narrow planar electrode fringe enhances capacitance. The study also proposes a simplified model of charge storage behavior and discusses the influence of electrolyte concentration and scan rate on total capacitance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Chaoran Qin, Xiaoyi Wu, Cui Huang, Bo Duan, Jinping Zhou, Hongye Yang, Ang Lu
Summary: In this study, a tooth-derived supercapacitor was fabricated for the first time, demonstrating excellent performance and potential for applications in energy storage field.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Green & Sustainable Science & Technology
Arun Kumar, Manika Khanuja
Summary: In this study, template-free acid-etched graphitic carbon nitride nanosheets were prepared using an eco-friendly and facile in-situ polymerization method, with PANI nanofibers optimized for large surface area and high porosity. The TGCN/PANI nanocomposites showed superior electrochemical performance as highly efficient electrode materials for high-performance supercapacitor applications. The optimized TCP50 nanocomposite exhibited high specific capacitance, long cycling stability, low capacitance loss, low leakage current, self-discharge, and superior energy density.
Article
Energy & Fuels
Shuai Zhang, Ying Huang, Yifeng Ruan, Jiaming Wang, Xiaopeng Han, Xu Sun
Summary: To meet the demands of future high-tech systems, such as smart wearables, internet of things, and smart cities, lightweight, flexible, patterned, and environmentally friendly electronic devices need to be developed. MXene and citrus-based carbon nanosheet composites (MX/CCNS) are prepared via electrostatic self-assembly, showing excellent energy storage properties and cyclic stability. MX/CCNS can be easily fabricated into flexible self-supporting electrodes and ink for screen printing and large-scale continuous preparation of patterned electrodes. They exhibit high specific capacitance and cycling stability, making them ideal for scalable and sustainable production of next-generation wearable intelligent electronics.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Biny R. Wiston, Kasinathan Dhivyaprasath, Shivangi Tewatia, M. Ashok
Summary: In this study, an optimized composite electroactive material was developed by adjusting the ratio of nickel and manganese, demonstrating improved electrochemical performance and high-rate capability. The material exhibited a high specific capacity and excellent cycle life under high-rate charging and discharging, indicating its potential as an electrode material for supercapacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
