杂化钴氧氢氧化物/泡沫镍石墨烯的高电化学性能。
High electrochemical performance of hybrid cobalt oxyhydroxide/nickel foam graphene.
机构信息
Department of Physics, Institute of Applied Materials, SARCHI Chair in Carbon Technology and Materials, University of Pretoria, Pretoria 0028, South Africa.
Department of Physics, Institute of Applied Materials, SARCHI Chair in Carbon Technology and Materials, University of Pretoria, Pretoria 0028, South Africa.
出版信息
J Colloid Interface Sci. 2016 Dec 15;484:77-85. doi: 10.1016/j.jcis.2016.08.069. Epub 2016 Aug 29.
In this study, we report the in-situ hydrothermal synthesis of mesoporous nanosheets of cobalt oxyhydroxide (CoOOH) on nickel foam graphene (Ni-FG) substrate, obtained via atmospheric pressure chemical vapour deposition (AP-CVD). The produced composite were closely interlinked with Ni-FG, which enhances the synergistic effect between graphene and the metal hydroxide, CoOOH. It is motivating that the synthesized CoOOH on the Ni-FG substrate showed a homogenous coating of well-ordered intersected nanosheets with porous structure. The electrochemical properties of the material as electrode showed a maximum specific capacity of 199mAhg with a capacity retention of 98% after 1000 cycling in a three electrode measurements.
在这项研究中，我们报告了在镍泡沫石墨烯（Ni-FG）基底上通过常压化学气相沉积（AP-CVD）原位水热合成介孔纳米片状钴氢氧化物（CoOOH）的方法。所制备的复合材料与 Ni-FG 紧密相连，增强了石墨烯和金属氢氧化物 CoOOH 之间的协同效应。令人鼓舞的是，在 Ni-FG 基底上合成的 CoOOH 呈现出均匀的、有序交叉纳米片的涂覆，具有多孔结构。该材料作为电极的电化学性能在三电极测试中表现出最大比容量为 199mAhg，经过 1000 次循环后容量保持率为 98%。
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