首页|Hydrothermal-deposition synthesis of MnO2/MnS nanorods as high-performance asymmetric supercapacitor positive electrode materials
Hydrothermal-deposition synthesis of MnO2/MnS nanorods as high-performance asymmetric supercapacitor positive electrode materials
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Nanostructuring has shown promise in enhancing the performance of MnO2 for energy storage in supercapacitors,highlighting its technological significance.This study introduces an innovative synthesis method,employing hydrothermal and constant-pressure deposition techniques,to produce nanostructured MnO2/MnS rod electrodes on nickel foam.The roded heterostructure enhances specific surface area,conductivity,and symbiotic effect between MnO2 and MnS.With optimized material and structural advantages,the electrode reaches a capacitance of 977.6 F g-1 at 1 A g-1,demonstrating extended cycling lifespan.Using MnO2/MnS-5h rods as the positive electrode and activated carbon as the negative electrode,the supercapacitor achieves an energy density of 122.23 Wh kg-1 at 898.75 W kg-1.Notably,it maintains 91.55％capacity retention after 5000 cycles at 10 A g-1,indicating outstanding cycling stability.This research presents a promising solution for efficient energy storage,emphasizing the potential application of the developed MnO2/MnS based supercapacitor in high-performance energy storage systems.
Nanostructured MnO2/MnS2 rodSupercapacitorsHigh energy densityOutstanding cycling stability
Ziming Wang、Hanbo Wang、Dongyu Pei、Sheng Wan、Yan Wang、Mingrui Yu、Haiyan Lu
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College of Chemistry,Jilin University,Changchun,130012,China
Key Laboratory of Physics and Technology for Advanced Batteries,Ministry of Education,Jilin University,Changchun,130012,China
Zhuhai Zhongli New Energy Sci-Tech Co.,Ltd.,Zhuhai,519000,Guangdong,China
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