Densely-stacked N-doped porous carbon monolith derived from sucrose for high-volumetric energy storages

作者：Dong, Xinwei; Yang, Zhen; Wu, Xu; Luo, Yongsong^*; Chen, Taiqiang; Li, Ming; Hu, Nantao^*; Zhang, Yafei^*

来源：Electrochimica Acta, 2017, 251: 263-269.

DOI：10.1016/j.electacta.2017.08.108

• porous carbon
• densely-stacked
• sucrose-derived
• super-high volumetric
• energy storage

Development of carbon electrodes with high volumetric electrochemical performance is challenging for high-performance energy storage devices. In this work, we demonstrate a novel sucrose-derived porous carbon monolith (NPC-m) constructed by holey carbon nanosheets for super-high volumetric energy storages. @@@ NPC-m, derived from sucrose via a facile yet scalable and economic "bottom-up" synthesis route, exhibits a high specific surface area of 1376 m(2) g(-1), a narrow hole size distribution, and a high N content (similar to 6.65 at. %). Most importantly, a self-stacking density as high as 1.26 g cm(-3) can be achieved via simple drying processes. The electrodes based on NPC-m in carbon electrodes deliver super-high volumetric capacities of 1385 mAh cm(-3) (0.1 A g(-1)) for Li-ion batteries and 380 F cm(-3) (0.5 A g(-1)) for supercapcacitors, highlighting their great potentials for high-performance energy storages.

• 出版日期2017-10-10
• 单位上海交通大学; 信阳师范学院; 华东师范大学