Synthesis of Nano-engineered Catalysts Consisting of Co3O4 Nanoparticles Confined in Porous SiO2

  • Simone Louise Zacho
  • Dorotea Gajdek
  • Jerrik Mielby
  • Søren KegnæsEmail author
Original Paper


Here we exploit zeolitic imidazolate frameworks ZIF-67 and ZIF-8 as precursors to obtain nanorattle catalysts with Co3O4 nanoparticles confined inside porous SiO2 shells. The method is simple and uses zeolitic imidazolate frameworks as both structural templates and sacrificial precursors. Nanorattle catalysts of different sizes and metal loadings are designed by varying the Co/Zn ratio in the zeolitic imidazolate frameworks. It is possible to obtain different metal loadings by introduction and removal of Zn using evaporation. Moreover, all produced catalysts contained small Co3O4 nanoparticles. Finally, the different catalysts are tested in CO oxidation to demonstrate the effect of variations as a proof of concept. Thus, the use of metal–organic frameworks to control properties in nanorattle catalysts proposes an alternative method for the preparation of novel catalysts and shows a new pathway for synthesis of nanostructured materials.


Metal–organic framework Mesoporous materials Templating Nanorattle catalysts CO oxidation 



The authors thank the Independent Research Fund Denmark (Grant Nos. 5054-00119 and 6111-00237), Villum fonden (Grant No. 13158), and Haldor Topsøe A/S for financial support.

Supplementary material

11244_2019_1134_MOESM1_ESM.docx (221 kb)
Supplementary material 1 (DOCX 220 KB)


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Simone Louise Zacho
    • 1
  • Dorotea Gajdek
    • 1
  • Jerrik Mielby
    • 1
  • Søren Kegnæs
    • 1
    Email author
  1. 1.Department of ChemistryTechnical University of DenmarkKgs. LyngbyDenmark

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