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 language | English |
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Pages (from-to) | 203-209 |
Number of pages | 7 |
Journal | Catalysis Today |
Volume | 265 |
DOIs | |
Publication status | Published - 2016 May 1 |
Keywords
- Anti-poisoning
- Catalyst
- Core-shell structure
- Zeolitic imidazolate framework
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)