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A triblock-copolymer-templating route to carbon spheres@SBA-15 large mesopore core-shell and hollow structures

Journal Article


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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 m(2) g(-1)) and large pore volumes (0.31-0.36 cm(3) g(-1)). The corresponding hollow mesoporous silica spheres (HMSS) with controllable mesopores (6.0-8.2 nm), high surface areas (239.9-326.5 m(2) g(-1)) and pore volumes (0.37-0.62 cm(3) g(-1)) can be obtained after the removal of the carbon sphere cores through calcination at 700 degrees 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.

UOW Authors


  •   Yang, Jianping (external author)
  •   Qian, Xianghong (external author)
  •   Chen, Minjun (external author)
  •   Fan, Jianwei (external author)
  •   Liu, Hua
  •   Zhang, Weixian (external author)

Publication Date


  • 2014

Citation


  • Yang, J., Qian, X., Chen, M., Fan, J., Liu, H. Kun. & Zhang, W. (2014). A triblock-copolymer-templating route to carbon spheres@SBA-15 large mesopore core-shell and hollow structures. RSC Advances: an international journal to further the chemical sciences, 4 (89), 48676-48681.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2310&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1309

Number Of Pages


  • 5

Start Page


  • 48676

End Page


  • 48681

Volume


  • 4

Issue


  • 89

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 m(2) g(-1)) and large pore volumes (0.31-0.36 cm(3) g(-1)). The corresponding hollow mesoporous silica spheres (HMSS) with controllable mesopores (6.0-8.2 nm), high surface areas (239.9-326.5 m(2) g(-1)) and pore volumes (0.37-0.62 cm(3) g(-1)) can be obtained after the removal of the carbon sphere cores through calcination at 700 degrees 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.

UOW Authors


  •   Yang, Jianping (external author)
  •   Qian, Xianghong (external author)
  •   Chen, Minjun (external author)
  •   Fan, Jianwei (external author)
  •   Liu, Hua
  •   Zhang, Weixian (external author)

Publication Date


  • 2014

Citation


  • Yang, J., Qian, X., Chen, M., Fan, J., Liu, H. Kun. & Zhang, W. (2014). A triblock-copolymer-templating route to carbon spheres@SBA-15 large mesopore core-shell and hollow structures. RSC Advances: an international journal to further the chemical sciences, 4 (89), 48676-48681.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2310&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1309

Number Of Pages


  • 5

Start Page


  • 48676

End Page


  • 48681

Volume


  • 4

Issue


  • 89