Anti-poisoning core-shell metal/ZIF-8 catalyst for selective alkene hydrogenation

Hang Yin, Jungkyu Choi, Alex C K Yip

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We report a synthesis strategy for preparing a core-shell zeolitic imidazolate framework-8 (ZIF-8)-supported metal (gold or palladium) composite with catalytic selectivity and anti-poisoning properties. The catalytic performance of this ZIF-8/metal/ZIF-8 composite was investigated in catalytic alkene hydrogenation. The prepared ZIF-8/Pd/ZIF-8 composites exhibited high catalytic selectivity for 1-hexene over cis-cyclooctene and effectively protected the Pd particles from poisoning by thiophene during hydrogenation. The spent catalyst was almost fully regenerated after removing the adsorbed sulfur impurities. The reported core-shell catalyst design could be applicable to reactions in which the reactants to be processed contain components that could potentially poison the active sites.

Original languageEnglish
Pages (from-to)203-209
Number of pages7
JournalCatalysis Today
Volume265
DOIs
Publication statusPublished - 2016 May 1

Keywords

  • Anti-poisoning
  • Catalyst
  • Core-shell structure
  • Zeolitic imidazolate framework

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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