Hierarchical nanostructures of nitrogen-doped porous carbon polyhedrons confined in carbon nanosheets for high-performance supercapacitors. Z. Zhao, S. L. Liu, J. X. Zhu, J. S. Xu, L. Li, Z.Q. Huang, C. Zhang*, T. X. Liu*. ACS Appl. Mater. Interfaces 2018, 10(23), 19871-19880. [12.pdf]