Facile synthesis of hierarchical MnO2 sub-microspheres composed of nanosheets and their application for supercapacitors

Lian Lifang; Yang Jie; Xiong Peixun; Zhang Weifeng; Wei Mingdeng

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Facile synthesis of hierarchical MnO2 sub-microspheres composed of nanosheets and their application for supercapacitors

机译：纳米片组成的分级MnO2亚微球的简便合成及其在超级电容器中的应用

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Hierarchical MnO2 sub-microspheres were fabricated by using a simple, green and efficient low-temperature route. These sub-microspheres were formed via the aggregation of ultrathin nanosheets with a thickness of 2-4 nm. An electrode made of hierarchical MnO2 sub-microspheres exhibited a specific capacitance of 120 F g(-1) at a current density of 0.167 A g(-1). For an asymmetric AC//MnO2 supercapacitor, it exhibited a superior electrochemical stability in 1 M Na2SO4 aqueous solution with 88% retention of the initial specific capacitance after 1000 cycles, and the Coulombic efficiency was above 97%, indicating good charge-discharge reversibility and electrochemical stability.

机译：MnO2分层亚微球是通过使用简单，绿色和高效的低温途径制备的。这些亚微球是通过聚集厚度为2-4 nm的超薄纳米片形成的。由分层MnO2亚微球制成的电极在0.167 A g（-1）的电流密度下具有120 F g（-1）的比电容。对于不对称AC // MnO2超级电容器，它在1 M Na2SO4水溶液中表现出优异的电化学稳定性，在1000次循环后保留了88％的初始比电容，库仑效率高于97％，表明具有良好的充放电可逆性和电化学稳定性。

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《RSC Advances》 |2014年第77期|共5页
作者
Lian Lifang; Yang Jie; Xiong Peixun; Zhang Weifeng; Wei Mingdeng;
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1. Facile synthesis of hierarchical MnO2 sub-microspheres composed of nanosheets and their application for supercapacitors [J] . Lian Lifang, Yang Jie, Xiong Peixun, RSC Advances . 2014,第77期

机译：纳米片组成的分级MnO2亚微球的简便合成及其在超级电容器中的应用
2. Hierarchical nanocomposite composed of layered V2O5/PEDOT/MnO2 nanosheets for high-performance asymmetric supercapacitors [J] . Guo Chun Xian, Yilmaz Gamze, Chen Shucheng, Nano Energy . 2015,第Null期

机译：由分层的V2O5 / PEDOT / MnO2纳米片组成的多层纳米复合材料，用于高性能不对称超级电容器
3. Facile interfacial synthesis of flower-like hierarchical a-MnO2 suub-microspherical superstructures constructed by two-dimension mesoporous nanosheets and their application in electrochemical capacitors [J] . Changzhou Yuan, Linrui Hou, Long Yang Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology . 2011,第40期

机译：二维介孔纳米片构建的花状a-MnO2层状微球超结构的轻松界面合成及其在电化学电容器中的应用
4. Facile hydrothermal synthesis of zinc cobalt sulfide nanosheets with enhanced electrochemical performance as supercapacitor electrode materials [C] . M. Dakshana, S. Meyvel, M. Silambarasan, International Conference on Multifunctional Materials . 2020

机译：硫化锌硫化锌纳固液的含有高层电化学性能作为超级电化学器电极材料的锌硫化锌纳米片的水热合成
5. Facile synthesis of cis-2-alkyl-3-trialkylsilyloxycycloalkanones via the non-aldol aldol rearrangement of 2,3-epoxycycloalkanols and use of 4-cyanocoumarins as dienophiles in a facile synthesis of highly substituted dibenzopyranones and progress toward the total synthesis of N-methylwelwitindolinone C isothiocyanate. [D] . Allen, Damian Arthur. 2009

机译：通过2,3-环氧环烷醇的非醛醇缩醛重排轻松合成顺式-2-烷基-3-三烷基甲硅烷氧基环烷酮，并在高度取代的二苯并吡喃酮的简便合成中使用4-氰基香豆素作为亲二烯体，并逐步发展为N-甲基welwitindolinone C异硫氰酸酯。
6. Facile Synthesis of Novel Nanostructured MnO2Thin Films and Their Application in Supercapacitors [O] . H Xia, W Xiao, MO Lai, 2009

机译：新型纳米结构MnO2薄膜的简便合成及其在超级电容器中的应用
7. Facile Synthesis of Na-Doped MnO2 Nanosheets on Carbon Nanotube Fibers for Ultrahigh-Energy-Density All-Solid-State Wearable Asymmetric Supercapacitors [O] . -1

机译：用于碳纳米管纤维的Na掺杂MnO2纳米片的容易合成超高能密度全固态可耐磨不对称超级电容器的碳纳米管纤维

Facile synthesis of hierarchical MnO2 sub-microspheres composed of nanosheets and their application for supercapacitors

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