Controlling the dispersion of Co3O4 nanoparticles inside mesoporous nanorattle catalysts

Simone Louise Zacho, Jes Æ. Hyllested, Takeshi Kasama, Jerrik Jørgen Mielby*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review


Here we report a simple method to synthesize cobalt nanoparticles inside mesoporous nanorattle catalysts. In this method, zeolitic imidazolate framework ZIF-67 is used as structural template for the preparation of a mesoporous metal oxide shell as well as sacrificial precursor to form cobalt nanoparticles inside the shell. Furthermore, we demonstrate that the introduction of a carbonization step prior to the final calcination can decrease the required calcination temperature from 550 °C to 300 °C. This has a large effect on the dispersion and catalytic activity of Co3O4 for CO oxidation and decreases the light-of temperature (temperature at 50% conversion) from 160°C to 134°C. Exploiting metal-organic frameworks as both structural template and sacrificial precursor offers precise control of size, shape and structure and opens up new exiting opportunities for design of advanced nanostructured catalysts.
Original languageEnglish
JournalCatalysis Communications
Pages (from-to)6-9
Number of pages4
Publication statusPublished - 2019


  • Metal-organic frameworks
  • Mesoporous materials
  • Templating
  • Nanorattle catalysts
  • CO oxidation

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