High performance flexible solid-state asymmetric supercapacitors from MnO2/ZnO core shell nanorods//specially reduced graphene oxide
High performance flexible solid-state asymmetric supercapacitors from MnO2/ZnO core shell nanorods//specially reduced graphene oxide
复制标题
DOI：
10.1039/c3tc31476f
复制
发表时间：
2014-02-21
影响因子：
6.4
通讯作者：
Yang, Shihe
中科院分区：
文献类型：
--
作者：
Wang Zilong;Zhu, Zonglong;Yang, Shihe
为了开发柔性固态非对称超级电容器，我们特别设计并在纳米尺度上制造了两种类型的电极：MnO2/ZnO核壳纳米棒阵列和hi还原氧化石墨烯组件，两者都沉积在碳布上。用结构和光谱技术对这些材料进行了彻底的表征。用这些材料制成的柔性固态非对称阴极和阳极超级电容器表现出优异的性能特点。它们可以在0-1.8 V的宽电位窗口内循环5000次，电容损失仅为1.5%。所证明的体积能量密度为0.234 mW h cm(-3)，体积功率密度为0.133 W cm(-3)，远远高于先前文献中报道的同类器件。
With a view to developing flexible solid-state asymmetric supercapacitors, we have specially designed and nanoscopically engineered two types of electrodes: a MnO2/ZnO core-shell nanorod array and a HI-reduced graphene oxide assembly, both deposited in situ on a carbon cloth. These materials were thoroughly characterized by structural and spectroscopic techniques. The flexible solid-state asymmetric supercapacitors with cathodes and anodes made of these materials have demonstrated superior performance characteristics. They can be cycled in a wide potential window of 0-1.8 V for 5000 cycles with only 1.5% capacitance loss. The demonstrated volumetric energy density of 0.234 mW h cm(-3) and volumetric power density of 0.133 W cm(-3) are much higher than those of similar devices reported previously in the literature.