| 초록 |
Recently, the porous carbon solids have received significant attentions for the pollutant removal, acidic gas capture, and energy storage due to their structural tuability, thermal stability, low density, and diverse chemistries. Herein, we demonstrate large surface area (＞1600 m2/g) and ultrahigh porosity (＞98%) of three-dimensional (3D) ultralight, macro- and micro-porous reduced graphene oxide (m2-rGO) monoliths by simple and clean physical activation chemistry. The resultant physical actived m2-rGO adsorbents are applied into solvent & dye adsorption, acidic gas capture, and supercapacitor to demonstrate the superiority of hierarchical structures. The physical activated 3D m2-rGO monoliths are attractive as high capacitive materials because of facile accessibility to adsorption site and fast mass transport. Furthermore, the macroscopically monolithic adsorbents assembled by nanoscopic graphene multilayers can expand their applicative fields because handling them is easier than doing powdery sorbents and monoliths are more fitted to process applications. |
