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A triblock-copolymer-templating route to carbon spheres@SBA-15 large mesopore core-shell and hollow structures
| Content Provider | Semantic Scholar |
|---|---|
| Author | Yang, Jianping Qian, Xianghong Chen, Minjun Fan, Jianwei Liu, Hua-Kun Zhang, Wei-Xian |
| Copyright Year | 2014 |
| Abstract | The fabrication of mesoporous core–shell and hollow spheres with ordered mesostructures and tunable large pore sizes is highly desirable for fundamental research and practical applications. A direct triblock-copolymer-templating coating approach has been provided for the synthesis of carbon sphere@mesoporous silica core–shell (CS@SBA-15) and hollow structures in an acidic medium at room temperature. These CS@SBA-15 core–shell structures possess large mesopores (6.3–8.4 nm), high surface areas (318.1–438.4 m2 g−1) and large pore volumes (0.31–0.36 cm3 g−1). The corresponding hollow mesoporous silica spheres (HMSS) with controllable mesopores (6.0–8.2 nm), high surface areas (239.9–326.5 m2 g−1) and pore volumes (0.37–0.62 cm3 g−1) can be obtained after the removal of the carbon sphere cores through calcination at 700 °C in air. The current research results provide an effective methodology for the synthesis of other mesoporous silica core–shell structures with large pore sizes and multilayer core–shells, and even nanorattle structures. |
| Starting Page | 48676 |
| Ending Page | 48681 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C4RA08850F |
| Volume Number | 4 |
| Alternate Webpage(s) | https://ro.uow.edu.au/cgi/viewcontent.cgi?article=2310&context=aiimpapers&httpsredir=1&referer= |
| Alternate Webpage(s) | https://doi.org/10.1039/C4RA08850F |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
