MOF-templated core-shell Co(II/III)@ZnO hexagonal prisms for selective oxidation of vanillyl alcohol

Le Yang*, Rui Ma, Hui Zeng, Zebao Rui, Yongdan Li

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

This work provides a facile strategy to prepare core-shell structured catalysts with MOF-templated metal active species embedded carbon matrix core and a functional metal oxide shell in a controllable way. The procedure features with the facile introduction of functional shell metal oxide and delivery of MOF morphology. Co(II/Ⅲ)@ZnO hexagonal prisms are fabricated with this procedure and ZIF-67 as the template. When being used in the selective oxidation of vanillyl alcohol to produce vanillin, ZnO shell plays an important role by faciliating redox of Co 3+ /Co 2+ for promoting vanillyl alcohol oxidation to vanillin and protecting the Co species against leaching into the reaction system. Co(II/Ⅲ)@ZnO exhibits a conversion of 20% with a selectivity of 80% after a 2 h reaction and shows stability after 3 catalytic cycles.

Original languageEnglish
Pages (from-to)280-285
Number of pages6
JournalCatalysis Today
Volume355
Issue numberSpecial issue
Early online date13 Feb 2019
DOIs
Publication statusPublished - 15 Sep 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • Core-shell
  • MOF-templated
  • Selective oxidation
  • Vanillin
  • ZnO

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