Article
Energy & Fuels
Xiaoqin Min, Xiaoyun Lin, Junhui Feng, Yongnian Ni
Summary: In order to alleviate the problem of resource shortage, it is necessary to develop efficient and environmentally friendly energy storage equipment. In this study, a novel MnSe2/Co0.85Se (MCSe) electrode was successfully prepared using a simple, green and environmentally friendly electrodeposition method. The MCSe electrode exhibited good electrochemical performance, and possesses a high specific capacity (Cs) of 1380C/g at a current density (CD) of 1 A/g. An asymmetric supercapacitor (ASC) assembled using a positive electrode (the MCSe electrode) and a negative electrode (active carbon (AC) electrode) delivered a high specific energy density (Es) of 49.63 Wh/kg at a specific power density (Ps) of 750 W/kg. Hence, this study provides a new approach for designing metal selenides for energy storage and conversion.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Yang Liu, Ke Zhong, Caixia Liu, Yu Yang, Zhe Zhao, Tiantian Li, Qingshan Lu
Summary: This study presents novel binder-free and self-supported electrodes of hierarchical nickel-cobalt phosphide films decorated with size-controlled silver quantum dots, which exhibit enhanced electrochemical performance and are successfully applied in an asymmetric supercapacitor with high energy density and cycling stability.
Article
Energy & Fuels
Ya Chen, Longjun Wang, Hui Gan, Yuanhe Jiang, Jiangbang Feng, Jiuqing Liu, Xichang Shi
Summary: This study reports a method for fabricating electrodes for supercapacitors using electrochemical deposition, hydrothermal conversion, and sulfurization. The binder-free NiCo2S4@NiS/CoS electrode exhibits high specific capacitance, excellent high-rate capability, and good cycling performance, making it a suitable cathode material for supercapacitors.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Liu Wan, Dianyu Jiang, Yuqi Wang, Yan Zhang, Cheng Du, Mingjiang Xie, Jian Chen
Summary: In this study, Co0.85Se@Ni3S2 hybrid nanosheet arrays supported on carbon cloth substrate were synthesized through an efficient two-step electrodeposition method. The Co0.85Se@Ni3S2 heterojunction exhibited enriched active sites, improved electrical conductivity, and reduced ion diffusion resistance. The as-synthesized Co0.85Se@Ni3S2 electrode showed high gravimetric and volumetric capacitance, excellent rate capability, and good cycling performance. Additionally, a hybrid supercapacitor device demonstrated a high energy density and cyclic durability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jin Li, Jie Luo, Shuo Yan
Summary: We fabricated 3D WO3 nanotube bundles on carbon cloth and demonstrated their excellent electrochemical performance in supercapacitors. The material showed a high specific capacitance and superior stability, thanks to the self-supported electrode, unique 3D structure, and special tube-like morphology.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Anna Khramenkova, Valentin V. Moshchenko, Daria N. Izvarina, Konstantin M. Popov, Lyubov G. Bulusheva, Alexander Okotrub
Summary: A new method for synthesizing hybrid electrode materials by depositing transition metal oxides on carbon fabrics using non-stationary electrolysis is proposed. The hybrid electrode material had a capacitance of 498 mF·cm-2 and a capacitance retention of 62% over 10,000 cycles. The power density and energy density of the hybrid electrode were 15·10-4 W·cm-2 and 6·10-7 Wh·cm-2, respectively. The synthesized metal oxide/carbon hybrids show promise as electrode materials for symmetrical supercapacitors with alkaline electrolytes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Souvik Ghosh, Prakas Samanta, Naresh Chandra Murmu, Tapas Kuila
Summary: A novel freestanding binder-free electrode material for flexible solid-state asymmetric supercapacitors was synthesized through a multistep hydrothermal route. The material exhibited high specific capacitance and energy density, with the ability to retain energy density even at high power densities. Capacitive properties varied significantly at different bending angles, but the device showed stable performance during cycle testing.
Article
Chemistry, Multidisciplinary
Khalida Mubeen, Muhammad Zia Ullah Shah, Muhammad Sajjad, Afshan Irshad, Zahid Ali, Zainab Zafar, A. Shah
Summary: We report a novel binary composite of ZnO/CuS with different ratios of CuS to investigate their electrochemical performance in hierarchical nanostructures. The synergistic effect of CuS as a nanostructure collector supports ZnO nanorods, resulting in remarkable stability and high power. These results demonstrate the importance of other transition metal oxide-based electrodes in achieving significantly improved performance.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Xueyan Lei, Zhengping Fu, Bin Xiang, Yalin Lu
Summary: Metal doping and hybridization of different materials can optimize the electronic structure of transition metal selenides and enhance their electrochemical performance in supercapacitors.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Energy & Fuels
Sangaraju Sambasivam, Chandu V. V. Muralee Gopi, Hammad Mueen Arbi, Yedluri Anil Kumar, Hee-Je Kim, Salem Al Zahmi, Ihab M. Obaidat
Summary: Binder-free hierarchical core-shell-like CoMn2O4@MnS heterostructures have been successfully grown on the surface of nickel foam, providing superhighways for ultra-fast transfer of electrons and ions. The as-prepared core-shell-like CoMn2O4@MnS NWAs electrode exhibits outstanding specific capacity, remarkable rate capability, and excellent cycling stability, making it an advanced battery-type electrode material for supercapacitor applications.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Engineering, Chemical
Yujia Zhou, Zidong Wang, Chunfang Zheng, Qun Fu, Minghong Wu, Huaping Zhao, Yong Lei
Summary: In this study, a novel Co0.85Se@NiNP hybrid electrode was proposed with enhanced specific surface area and efficient ion/electron transport, leading to improved specific capacity, rate performance, and cycle stability in supercapacitors. Furthermore, an asymmetric supercapacitor device was fabricated with Co0.85Se@NiNP//AC electrodes, demonstrating high energy density and outstanding cycle stability, suggesting great application potential in the field of supercapacitors.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Qian Zhang, Jie Zhu, Sudong Yang, Lin Chen, Maosong Sun, Xulin Yang, Pan Wang, Kui Li, Peng Zhao
Summary: In this study, an effective strategy to enhance electrochemical performance by combining Co3O4 with highly conductive transition metal phosphides Co2P to form a composite electrode was demonstrated. The as-synthesized Co2P decorated Co3O4 nanocomposites showed improved areal specific capacitance and volumetric capacitance, as well as excellent cycling performance.
NEW JOURNAL OF CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Xueyan Zhao, Kai Tao, Lei Han
Summary: This review summarizes the recent advances in the design, fabrication, and application of self-supported MOF-based nanostructures as binderless electrodes in supercapacitors over the last five years. By overviewing the synthesis strategies for constructing nanostructures and highlighting the advantages and challenges of different electrode materials, it provides insights into the rational design of MOF-based electrode materials.
Review
Chemistry, Multidisciplinary
Fei Yuan, Wenxin Zhang, Di Zhang, Qiujun Wang, Zhaojin Li, Wen Li, Huilan Sun, Yusheng Wu, Bo Wang
Summary: This review discusses the potential of potassium ion batteries (PIBs) as promising candidates for large-scale stationary energy storage, while facing challenges in practical applications, especially in electrode materials. The study analyzes in detail the electrochemical properties of different types of binder-free anode materials, including recent progress and challenges in binder-free electrodes for PIBs.
Article
Energy & Fuels
Kanmani Moorthi, Johnbosco Yesuraj, Kibum Kim, Sakar Mohan
Summary: Mixed transition-metal oxides (MTMOs) have been widely studied as battery-type electrodes for their high electrical conductivity and structural stability. However, capacity degradation has limited their practical use. In this study, nitrogen-doped carbon dots (NCDs) integrated bismuth molybdenum oxide (Bi2MoO6; BMO) composites were successfully synthesized using a hydrothermal method. The composites showed rod-like morphology and exhibited enhanced specific capacity and cyclic stability. The results demonstrate that the NCD/BMO composite is a promising electrode material for supercapacitor applications.
