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 journalArticle

2 Citations (Scopus)

Abstract

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
Volume16
Issue number2
DOIs
Publication statusPublished - 2016 Feb 1

Fingerprint

Nanoreactors
Egg Shell
eggs
Metals
infiltration
Cobalt
Infiltration
catalysts
Silicon Dioxide
Catalysts
cobalt
synthesis
Silica
silicon dioxide
Fischer-Tropsch synthesis
bears
beads
metals
Nanoparticles
Oxides

Keywords

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

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering
  • Biomedical Engineering

Cite this

A facile synthesis of SiO2@Co/mSiO2 egg-shell nanoreactors for Fischer-Tropsch reaction. / Kwon, Jae In; Kim, Taewan; Park, Ji Chan; Yang, Jung Il; Lee, Kwan Young.

In: Journal of Nanoscience and Nanotechnology, Vol. 16, No. 2, 01.02.2016, p. 1787-1792.

Research output: Contribution to journalArticle

Kwon, Jae In ; Kim, Taewan ; Park, Ji Chan ; Yang, Jung Il ; Lee, Kwan Young. / A facile synthesis of SiO2@Co/mSiO2 egg-shell nanoreactors for Fischer-Tropsch reaction. In: Journal of Nanoscience and Nanotechnology. 2016 ; Vol. 16, No. 2. pp. 1787-1792.
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