Hierarchical MoO3/MnO2 core-shell nanostructures with enhanced pseudocapacitive properties
Hierarchical MoO3/MnO2 core-shell nanostructures with enhanced pseudocapacitive properties
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具有增强赝电容特性的分层MoO3/MnO2核壳纳米结构
DOI：
10.1016/j.jallcom.2017.07.182
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发表时间：
2017
影响因子：
6.2
通讯作者：
Hu Junqing
中科院分区：
文献类型：
--
作者：
Cao Yunjiu;Cui Zhe;Ji Tao;Li Wenyao;Xu Kaibing;Zou Rujia;Yang Jianmao;Qin Zongyi;Hu Junqing
采用水热法和原位氧化聚合法制备了层次化MoO3/ mno2核壳纳米结构，作为超级电容器的集成电极材料。MoO3/ mno2纳米复合材料具有优异的电化学性能，在1 A g−1时具有352.4 F g−1的高比电容，在1 M NaOH溶液中具有良好的倍率性能。MoO3/ mno2的核壳纳米结构使两种赝电容材料物理连接，显著提高了电解质的扩散效率和电子输运。这些具有优异电化学性能的MoO3/ mno2核壳纳米结构可以被认为是超级电容器应用的潜在候选材料。
Hierarchical MoO3/MnO2core-shell nanostructures were prepared by a hydrothermal process followed by in-situ oxidative polymerization as an integrated electrode material for supercapacitors. The core-shell MoO3/MnO2nanocomposites exhibited excellent electrochemical properties with high specific capacitance of 352.4 F g−1at 1 A g−1and desirable rate capability in 1 M NaOH solution. The superior electrochemical performances could be ascribed to the MoO3/MnO2core-shell nanostructures which make two types of pseudocapacitive materials connected physically and significantly improve electrolyte diffusion efficiency and electron transport. These MoO3/MnO2core-shell nanostructures with remarkable electrochemical performances could be considered as a prospective candidate for the application of supercapacitors.