Three dimensional graphene aerogels and their electrically conductive composites
Three dimensional graphene aerogels and their electrically conductive composites
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DOI：
10.1016/j.carbon.2014.05.063
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发表时间：
2014-10
期刊：
影响因子：
10.9
通讯作者：
G. Tang;Zhi‐Guo Jiang;Xiaofeng Li;Hao‐Bin Zhang;A. Dasari;Zhongzhen Yu
中科院分区：
文献类型：
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作者：
G. Tang;Zhi‐Guo Jiang;Xiaofeng Li;Hao‐Bin Zhang;A. Dasari;Zhongzhen Yu
采用原位还原-组装法制备了三维石墨烯气凝胶。在氨水介质中，以对苯二胺(PPD)为氧化石墨烯的还原和功能化试剂。所合成的三维石墨烯-PPD气凝胶具有高孔道结构、低密度、高导电性和良好的力学性能。此外，采用真空辅助浸渍法制备了具有良好导电性和压缩性能的环氧树脂/气凝胶复合材料。
Three dimensional (3D) graphene aerogel was prepared by in situ reduction-assembly method. Paraphenylene diamine (PPD) was used as reducing and functionalizing agent of graphene oxide in an aqueous medium with ammonia. The synthesized 3D graphene-PPD aerogel has highly porous structure, low density, high electrical conductivity and good mechanical properties. Further, epoxy/aerogel composites were prepared by vacuum-assisted impregnation process, which exhibited good electrical conductivity and compressive properties.