Synthesis of a MnO2-graphene foam hybrid with controlled MnO2 particle shape and its use as a supercapacitor electrode
Synthesis of a MnO2-graphene foam hybrid with controlled MnO2 particle shape and its use as a supercapacitor electrode
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具有受控MnO2颗粒形状的MnO2-石墨烯泡沫混合物的合成及其作为超级电容器电极的用途
DOI：
10.1016/j.carbon.2012.06.014
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发表时间：
2012-11-01
期刊：
影响因子：
10.9
通讯作者：
Chen, Peng
中科院分区：
文献类型：
--
作者：
Dong, Xiaochen;Wang, Xuewan;Chen, Peng
开发了一种简单的方法来合成二氧化锰 (MnO2) 和石墨烯泡沫的三维 (3D) 混合物。 MnO2 纳米结构的形态可以通过溶液酸度轻松控制。此外，我们证明，作为独立式超级电容器电极，这种新型三维混合材料具有显着的比电容（在0.2 A/g的电流密度下为560 F/g）和优异的循环稳定性。 (C) 2012 Elsevier Ltd. 保留所有权利。
A simple approach was developed to synthesize the three-dimensional (3D) hybrid of manganese dioxide (MnO2) and graphene foam. The morphology of the MnO2 nanostructures can be readily controlled by the solution acidity. Furthermore, we demonstrate that, serving as a free-standing supercapacitor electrode, this novel three-dimensional hybrid gives a remarkable specific capacitance (560 F/g at the current density of 0.2 A/g) and excellent cycling stability. (C) 2012 Elsevier Ltd. All rights reserved.