Two-Dimensional Mesoporous Carbon Materials Derived from Fullerene Microsheets for Energy Applications.

Porous carbon materials with rich defects are promising candidates in energy storage and conversion applications. Herein, we report a facile template-free approach for the synthesis of a two-dimensional (2D) mesoporous carbon material derived from fullerene (C60) microsheets (FMSs) by simple heat-treatment. The sample obtained at 1000 o C (FMS1000) shows a large surface area of 1507.6 m 2 g -1 due to the presence of mesopores and rich defects which promote the electron and mass transfer in the electrocatalysis process of oxygen reduction reactions (ORR) showing excellent performances with an onset potential of 0.95 V, half-wave potential of 0.85 V and long-term durability of 2000 cycles which are comparable to that of commercial Pt/C. Moreover, FMS1000 displays a remarkable supercapacitive property with specific capacitance of 330.7 F g -1 at 0.2 A g -1 and long-term stability with capacitance retention of 97% over 50,000 cycles. Thus, a practical strategy for the production of mesoporous carbon materials with different morphological structures and porous defects as high-performance energy materials is advanced.