Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, College of Materials Science & Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China.
College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China.
Angew Chem Int Ed Engl. 2018 Mar 5;57(11):2894-2898. doi: 10.1002/anie.201712959. Epub 2018 Feb 8.
Although two-dimensional (2D) carbon materials are widely investigated, a well-defined 2D carbon nanosheet with an ordered mesostructure has rarely been realized. Monolayer-ordered mesoporous carbon nanosheets (OMCNS) were prepared through confinement assembly of resol and F127 in the interlayer of montmorillonite (MONT). The nanoscale distance of the interlayer space of MONT only allow the assembly of resol and F127 in the same plane, leading to ordered mesopores perpendicular to carbon nanosheets, and favor the formation of sp carbon, resulting in a high degree of graphitization. The mesopores on the carbon nanosheets provide efficient ion diffusion, and the high degree of graphitization provides a fast electron-transport route, enabling OMCNS as excellent electrode materials for electric double layer capacitors.
虽然二维（2D）碳材料得到了广泛的研究，但具有有序介孔结构的明确 2D 碳纳米片却很少被实现。通过在蒙脱石（MONT）层间限制组装酚醛树脂和 F127，制备了单层有序介孔碳纳米片（OMCNS）。MONT 层间空间的纳米级距离仅允许酚醛树脂和 F127 在同一平面上组装，导致垂直于碳纳米片的有序介孔，并有利于 sp 碳的形成，从而导致高度石墨化。碳纳米片上的介孔提供了有效的离子扩散途径，而高度石墨化则提供了快速的电子传输途径，使 OMCNS 成为双电层电容器的优秀电极材料。
