| 초록 |
Since hierarchical nanomaterials show high performances in catalysis or adsorption due to their high specific surface area, tremendous efforts have been devoted to synthesis and application of hierarchical nanomaterials with a high specific surface area. Paradoxically, however, several problems have occurred due to extremely small size and light weight of hierarchical nanomaterials upon applications. For reuse, it is difficult to collect hierarchical nanomaterials without loss owing to difficulty in separation, leading the decrease in performance and second-hand contamination of environment. These problems led us to synthesize large and massive microstructures containing numerous hierarchical nanomaterials that play the roles of catalysts and adsorbents. |
