Article
Energy & Fuels
Chen Zhang, Aijuan Xie, Wanqi Zhang, Jianing Chang, Chenyang Liu, Linyang Gu, Xiaoxiao Duo, Fei Pan, Shiping Luo
Summary: The Copper manganese oxide-graphene (CuMn2O4-RGO) composite was prepared using the sol-gel method and physical grinding, and then applied as electrode materials for supercapacitors. Various characterization techniques were used to analyze the structure and morphology of the composites. Through electrochemical tests, it was found that the CuMn2O4-RGO composite at a mass ratio of 1:1 exhibited excellent electrochemical properties, with higher capacitance and energy density compared to pure CuMn2O4 and RGO. The composite shows promising potential as an electrode material for supercapacitors.
JOURNAL OF ENERGY STORAGE
(2021)
Review
Energy & Fuels
Ravikant Adalati, Meenakshi Sharma, Siddharth Sharma, Ashwani Kumar, Gaurav Malik, Rabah Boukherroub, Ramesh Chandra
Summary: Electrochemical supercapacitors are important energy storage devices that provide excellent power output. The electrode materials, especially those based on metal nitrides, play a crucial role in improving the capacitive performance of supercapacitors. Metal nitride electrodes exhibit high electrical conductivity, corrosion resistance, and chemical reactivity, making them promising candidates for supercapacitor applications.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
Artem A. Lobinsky, Ilya A. Kodintzev, Maxim I. Tenevich, Vadim I. Popkov
Summary: In this study, a novel reduction route for the synthesis of uniform MnO2 nanocoating with porous morphology on nickel foam was proposed as electrode material for high-effective pseudocapacitors. The nanocoatings synthesized via the reduction route were formed of amorphous uniform ultra-thick coating MnO2 with a porous morphology of nanoflakes. The electrodes based on this process demonstrated a high specific capacity and excellent cycling stability.
Article
Chemistry, Physical
Qianqian Fu, Hui Wang, Mengqi Cui, Xuyun Wang, Jianwei Ren, Rongfang Wang
Summary: This study presents the synthesis of NiCoP using the Kirkendall effect and the preparation of a three-di-mensional (3D) nanoflower-like structure of NiCoP/Co9S8. The optimized electrode sample exhibited high capacity and the assembled NiCoP/Co9S8 electrode/active carbon (AC)-based asymmetric supercapacitor demonstrated excellent capacity retention rate and power density. These findings highlight the potential of the 3D NiCoP/Co9S8 nanoflower-like structure for application in asymmetric supercapacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Ranjit Mishra, Prajnashree Panda, Sudip Barman
Summary: The study successfully synthesized a cobalt vanadium oxide/carbon nitride composite with superior supercapacitor performance through a simple solvothermal method. The composite exhibited high capacitance and stable cyclic performance at a current density, showcasing potential for application in hybrid energy storage devices.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Electrochemistry
Lin Ma, Rui Hu, Chenxia Kang, Likang Fu, Yucheng Chen, Huijun Liu, Qiming Liu
Summary: Binary system sulfides, particularly Ni3Sn2S2, are promising materials for high-performance supercapacitors due to their rich transition states. A 3D flower-like Ni3Sn2S2 material was successfully created and its growth mechanism was proposed. Electrochemical measurements demonstrated that Ni3Sn2S2 has high area-specific capacitance and energy density, making it a novel and potential electrode material for supercapacitors.
ELECTROCHIMICA ACTA
(2021)
Article
Materials Science, Ceramics
Purusottam Reddy Bommireddy, M. Chandra Sekhar, Young-Woong Lee, Mirgender Kumar, Youngsuk Suh, Si-Hyun Park
Summary: In this study, Co-Ni hexacyanoferrate electrodes were synthesized via a hydrothermal approach and their properties were studied. The binder-free composites exhibited battery-like electrochemical storage mechanisms, with CoNi2HCF@NF composite showing the best charge storage properties. Furthermore, a hybrid supercapacitor device using CoNi2HCF@NF as the battery type and activated carbon as supercapacitor electrodes achieved high energy density and good cycling performance.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Ketong Hou, Tianlei Wang, Xiudang Jing, Lei Zhang
Summary: With the increasing demand for energy, the energy crisis is becoming more severe. In this study, MnO/C/Sepiolite aerogel nanocomposites were prepared as electrode materials for supercapacitors, which exhibited higher specific capacity and capacitance compared to MnO/C aerogel. The introduction of sepiolite effectively improved the problems of particle agglomeration and low active site exposure of MnO/C active substances.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Environmental
Maryam Amiri, Seyyed Ebrahim Moosavifard, Saied Saeed Hosseiny Davarani, Saeid Kamari Kaverlavani, Mojtaba Shamsipur
Summary: This study successfully synthesized a hierarchical nanosheet-based MnCoP hollow nanocubes electrode with battery type feature, exhibiting high specific capacity, excellent cycling stability, and high energy and power density.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Shivraj M. Mahadik, Nilesh R. Chodankar, Young-Kyu Han, Deepak P. Dubal, Sarita Patil
Summary: This review elaborates on the recent advances in the use of nickel cobaltite (NiCo2O4) as a potential positive electrode for hybrid supercapacitors (HSCs) to achieve high energy density without sacrificing power density and cycling stability.Introduction of structural benefits, charge storage mechanisms, and composites of NiCo2O4 with various materials helps in enhancing the electrochemical performance of HSCs. Key scientific challenges and perspectives for building high-performance HSCs for future applications are also discussed.
Article
Energy & Fuels
M. Geerthana, S. Prabhu, R. Ramesh
Summary: Transition metal oxide decorated graphene nanosheets have shown great potential in electrochemical energy storage, especially in supercapacitors. In this study, ternary alpha-Fe2O3/MnO2/rGO composites were synthesized using a solvothermal route and demonstrated excellent performance in energy storage devices.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Muhammad Zia Ullah Shah, Muhammad Sajjad, Muhammad Sanaullah Shah, Muhammad Rahim, Shams ur Rahman, Hongying Hou, Afaq Ullah Khan, A. Shah
Summary: This study synthesized MnSe-based ZnO composites with different weight ratios and investigated their electrochemical characteristics for high-performance hybrid supercapacitors. The results showed that the composites exhibited improved capacitive energy storage performance, good reversibility, and high capacitances. The synergistic effect between MnSe and ZnO nanostructures in a hybrid supercapacitor contributes to their promising potential as electrode materials.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
S. Ezhil Arasi, R. Ranjithkumar, P. Devendran, M. Krishnakumar, A. Arivarasan
Summary: Manganese vanadate nano pebbles were synthesized using a simple co-precipitation method and calcination process. The nanoparticles exhibited a monoclinic structure with metallic bond vibrations, and were observed to have a pebble-like morphology through microscopic analysis.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Energy & Fuels
Xinrong Lv, Li Feng, Xiaoyun Lin, Yongnian Ni
Summary: A novel 3D MnNi2O4@MnNi2S4 core-shell nano array was grown on nickel foam via an in-situ growth method. The material exhibited a unique core-shell structure and provided abundant active sites for rapid electrochemical reactions, resulting in high specific capacitance and excellent electrochemical properties.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Environmental
Jianghang Cao, Yuzhen Hu, Yuying Zhu, Haijie Cao, Meiqiang Fan, Chenghao Huang, Kangying Shu, Maoxia He, Hai Chao Chen
Summary: By controlling the manganese composition in nickel-cobalt-manganese sulfide, the electrons of cobalt can be activated and the affinity with electrolyte ions can be enhanced, leading to improved electrochemical activity and rate performance. Furthermore, the manganese and nickel compositions greatly enhance the charge storage activity of the sulfide, while the nickel composition improves the rate performance.
CHEMICAL ENGINEERING JOURNAL
(2021)