A facile synthesis of SiO2@Co/mSiO2 egg-shell nanoreactors for Fischer-Tropsch reaction

Jae In Kwon, Taewan Kim, Ji Chan Park, Jung Il Yang, Kwan Young Lee

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Recently, a convenient melt-infiltration method, using a hydrated metal salt with porous support, was developed to prepare various metal/metal-oxide nanocatalysts. Until now, millimeter-scale, bead-shaped, cobalt egg-shell catalysts have been used to enhance the rate of reactant diffusion and catalyst performance. In the present work, new SiO2@Co/mSiO2 egg-shell nanoreactors (∼300 nm) were synthesized with controlled Co content of 10 and 20 wt%. This was accomplished using a selective melt-infiltration process with porous silica shells around solid-silica cores. The SiO2@Co(10 wt%)/mSiO2 egg-shell catalyst that bears small cobalt nanoparticles of ∼2 nm was successfully employed for the industrially valuable Fischer-Tropsch synthesis reaction, showing the high activity of ∼ 8.0×10-5 molCO ·g-1 Co · s-1.

Original languageEnglish
Pages (from-to)1787-1792
Number of pages6
JournalJournal of Nanoscience and Nanotechnology
Issue number2
Publication statusPublished - 2016 Feb 1

Bibliographical note

Funding Information:
This research was supported by the Research and Development Program of the Korea Institute of Energy Research (KIER) (B5-2456).

Publisher Copyright:
Copyright © 2016 American Scientific Publishers.


  • Cobalt
  • Egg-Shell
  • Fischer-Tropsch
  • Melt-infiltration
  • Mesoporous silica

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • Biomedical Engineering
  • General Materials Science
  • Condensed Matter Physics


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