Synthesis and characterization of spherical carbon and polymer capsules with hollow macroporous core and mesoporous shell structures

Minsuk Kim, Suk Bon Yoon, Kwonnam Sohn, Jeong Yeon Kim, Chae Ho Shin, Taeghwan Hyeon, Jong Sung Yu

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98 Scopus citations

Abstract

The synthesis and characterization of spherical carbon hollow capsules with mesoporous shell (HCMS) structures is reported. Silica spheres with sub-micrometer sized solid cores and mesoporous shell (SCMS) structures were used as templates in the synthesis. The resulting carbon capsules inversely replicated the morphology of the silica template and had uniform pores with a narrow pore size distribution centered at 3 nm. The carbon capsules exhibited a BET surface area of >1000 m2/g and a total pore volume of >1.0 cm3/g. The diameter of the hollow core and the mesoporous shell thickness of the carbon capsules could easily be controlled using appropriate SCMS silica materials as templates. Using a similar synthetic procedure, hollow poly(divinylbenzene) capsules were also synthesized.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalMicroporous and Mesoporous Materials
Volume63
Issue number1-3
DOIs
StatePublished - 18 Sep 2003

Bibliographical note

Funding Information:
T. Hyeon would like to thank the National Creative Research Initiative Program of the Korean Ministry of Science and Technology for the financial support. J.-S. Yu thanks Korean Research Foundation (KRF-2002-015-CP0194) for the financial support.

Keywords

  • Carbon capsules
  • Hollow core/mesoporous shell (HCMS)
  • Poly(divinylbenzene) capsules
  • Solid core/mesoporous shell (SCMS)

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