Self-assembly of three-dimensional interconnected graphene-based aerogels and its application in supercapacitors
Self-assembly of three-dimensional interconnected graphene-based aerogels and its application in supercapacitors
复制标题
三维互连石墨烯基气凝胶的自组装及其在超级电容器中的应用
DOI：
10.1016/j.jcis.2013.06.054
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发表时间：
2013-10-01
影响因子：
9.9
通讯作者：
Wei, Hua
中科院分区：
文献类型：
--
作者：
Ji, Chen-Chen;Xu, Mao-Wen;Wei, Hua
采用三种类型的碳水化合物（葡萄糖、β-环糊精和壳聚糖），通过简单的水热路线制备了具有3D互连孔的均匀分布的自组装混合石墨烯基气凝胶。使用三种碳水化合物作为形貌导向剂和还原剂可以有效地调整产物的微观结构、物理性能和电化学性能。系统讨论了不同碳水化合物对氧化石墨烯还原形成不同微观形貌和物理性能的石墨烯基气凝胶的影响。所有石墨烯基气凝胶样品的电化学性能均表现出显著的强稳定性，表明所有具有良好多孔纳米结构和互连导电网络的三维互穿结构石墨烯基气凝胶样品都可以为电化学储能提供快速离子通道。这些结果表明，这种策略将提供一种简单有效的方法来制备石墨烯基材料。(c)2013 Elsevier Inc. All rights reserved.
Homogeneously distributed self-assembling hybrid graphene-based aerogels with 3D interconnected pores, employing three types of carbohydrates (glucose, beta-cyclodextrin, and chitosan), have been fabricated by a simple hydrothermal route. Using three types of carbohydrates as morphology oriented agents and reductants can effectively tailor the microstructures, physical properties, and electrochemical performances of the products. The effects of different carbohydrates on graphene oxide reduction to form graphene-based aerogels with different microcosmic morphologies and physical properties were also systemically discussed. The electrochemical behaviors of all graphene-based aerogel samples showed remarkably strong and stable performances, which indicated that all the 3D interpenetrating microstructure graphene-based aerogel samples with well-developed porous nanostructures and interconnected conductive networks could provide fast ionic channels for electrochemical energy storage. These results demonstrate that this strategy would offer an easy and effective way to fabricate graphene-based materials. (c) 2013 Elsevier Inc. All rights reserved.