Refinement of structural characteristics and supercapacitor performance of MnO2 nanosheets via CTAB-assisted electrodeposition
作者机构：College of Chemistry Jilin University Key Laboratory of Physics and Technology for Advanced Batteries Ministry of Education Jilin University Zhuhai Zhongli New Energy Sci-Tech Co. Ltd.
出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))
年 卷 期：2023年第33卷第6期
页 面：881-890页
核心收录：
学科分类：081702[工学-化学工艺] 080801[工学-电机与电器] 0808[工学-电气工程] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学]
基 金：supported by the Natural Science Foundation of China (Grant No. 21975100) the Zhuhai Innovative and Entrepreneurial Research Team Program (No. ZH01110405180053PWC)
主 题：Manganese dioxide CTAB Asymmetric capacitor Electrodeposition
摘 要：MnO2stands out as a highly promising material for electrochemical capacitors due to its impressive theoretical capacitance,cost-effectiveness,eco-friendliness,and abundant natural ***,its inherent low conductivity and structural fragility result in restricted specific capacitance and a shortened cycle life,posing a notable obstacle to its *** the introduction of CTAB(cetyltrimethylammonium bromide),we successfully tailored the surface morphology of the electrode material,yielding a robust and highly conductive layered MnO2electrode *** MnO2/CTAB composite synthesized through a simple electrodeposition method exhibits outstanding performance,achieving a specific capacitance of 665 F g-1at 1 A *** after30,000 cycles,it maintains 92.13% *** performance improvement is primarily attributed to increased conductivity,and additional electrochemically active ***,the assembled MnO2/CTAB//AC capacitor(ACs) achieves a specific capacitance of 70.06 F g-1at 1 A g-1,operating at a voltage of 1.8 *** a power density of 563.36 W kg-1,it reaches an energy density of 35.21 Wh *** work provides an effective approach for high-performance electrode of supercapacitor.
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