Two-Dimensional Porous Carbon: Synthesis and Ion-Transport Properties
Two-Dimensional Porous Carbon: Synthesis and Ion-Transport Properties
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二维多孔碳：合成和离子传输性能
DOI：
10.1002/adma.201501452
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发表时间：
2015-09-23
影响因子：
29.4
通讯作者：
Yang, Quan-Hong
中科院分区：
文献类型：
--
作者：
Zheng, Xiaoyu;Luo, Jiayan;Yang, Quan-Hong
它们的化学稳定性、高比表面积和导电性使多孔碳材料成为电化学电容器（也称为超级电容器）最常用的电极材料。为了进一步提高能量和功率密度，广泛研究了具有更高的电化学可及表面积、更快的离子传输路径和与电解质更稳健的界面的孔结构的工程化。与传统的多孔炭相比，具有相互连接的多级孔结构的二维多孔炭片具有高纵横比的电极填充和电子传输、多级孔结构的离子传输以及短的离子传输长度等优点，是超级电容器的理想候选材料。本文报道了二维多孔碳合成的最新进展，以及由于增强的离子传输而改善的电化学行为，沿着。还讨论了具有所需性能的2D多孔碳的可控制备的挑战;这些需要精确调整的层次结构和澄清的形成机制。
Their chemical stability, high specific surface area, and electric conductivity enable porous carbon materials to be the most commonly used electrode materials for electrochemical capacitors (also known as supercapacitors). To further increase the energy and power density, engineering of the pore structures with a higher electrochemical accessible surface area, faster ion-transport path and a more-robust interface with the electrolyte is widely investigated. Compared with traditional porous carbons, two-dimensional (2D) porous carbon sheets with an interlinked hierarchical porous structure are a good candidate for supercapacitors due to their advantages in high aspect ratio for electrode packing and electron transport, hierarchical pore structures for ion transport, and short ion-transport length. Recent progress on the synthesis of 2D porous carbons is reported here, along with the improved electrochemical behavior due to enhanced ion transport. Challenges for the controlled preparation of 2D porous carbons with desired properties are also discussed; these require precise tuning of the hierarchical structure and a clarification of the formation mechanisms.