Spontaneous Weaving of Graphitic Carbon Networks Synthesized by Pyrolysis of ZIF-67 Crystals
Spontaneous Weaving of Graphitic Carbon Networks Synthesized by Pyrolysis of ZIF-67 Crystals
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ZIF-67 晶体热解合成石墨碳网络的自发编织
DOI：
10.1002/anie.201701252
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Hu Ming
中科院分区：
文献类型：
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作者：
Zhang Wei;Jiang Xiangfen;Wang Xuebin;Kaneti Yusuf Valentino;Chen Yinxiang;Liu Jian;Jiang Ji-Sen;Yamauchi Yusuke;Hu Ming
碳颗粒之间良好的相互连接促进了三维(3D)网络的导电性，使其成为一种很有前途的储能和转换材料。然而，直接合成这样的碳网络仍然是困难的。在这里，我们报道了通过热解纳米ZIF-67晶体来合成三维石墨化碳网络的新方法。有趣的是，ZIF-67晶体尺寸减小和加入催化钴纳米颗粒的不同寻常的效果是自发形成了石墨化网络。所得到的石墨化碳网络对钾离子的插入和提取表现出良好的电化学性能。
Three‐dimensional (3D) networks of graphitic carbon are promising materials for energy storage and conversion devices because of their high electrical conductivity, which is promoted by the good interconnection between the carbon particles. However, it is still difficult to directly synthesize such carbon networks. Herein, we report the novel synthesis of 3D graphitic carbon networks through the pyrolysis of nanosized ZIF‐67 crystals. Interestingly, the unusual effect of downsizing the ZIF‐67 crystals and the incorporation of catalytic Co nanoparticles was the spontaneous formation of graphitic networks. The obtained graphitic carbon networks show excellent electrochemical performance for the insertion and extraction of potassium ions.