Preparation of graphene oxides with different sheet sizes by temperature control Project supported by the National Natural Science Foundation of China (Grant Nos. 41473090, 41430644, 11675098, 41373098, 41430644, and 21490585). |
Size distributions of graphene oxide sheets of samples A. B, C, and D prepared at (a) 6 °C, (b) 20 °C, (c) 40 °C, and (d) 60 °C, respectively. |