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

Hang Yin; Jungkyu Choi; Alex C.K. Yip

doi:10.1016/j.cattod.2015.08.030

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

Hang Yin, Jungkyu Choi, Alex C.K. Yip

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

9 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 language	English
Pages (from-to)	203-209
Number of pages	7
Journal	Catalysis Today
Volume	265
DOIs	https://doi.org/10.1016/j.cattod.2015.08.030
Publication status	Published - 2016 May 1

Keywords

Anti-poisoning
Catalyst
Core-shell structure
Zeolitic imidazolate framework

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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title = "Anti-poisoning core-shell metal/ZIF-8 catalyst for selective alkene hydrogenation",

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.",

keywords = "Anti-poisoning, Catalyst, Core-shell structure, Zeolitic imidazolate framework",

author = "Hang Yin and Jungkyu Choi and Yip, {Alex C.K.}",

note = "Funding Information: We would like to thank the Royal Society of New Zealand for funding this work under the NZ-Korea Joint Research Projects. We also acknowledge technical support from our technician, Mr. Stephen Hood (University of Canterbury), regarding reactor design and manufacturing. This work was also supported by the Korea CCS R&D Center (KCRC) grant funded by the Korea government ( Ministry of Science, ICT & Future Planning ) (No. 2014M1A8A1049309 ) and the Human Resources Development Program (No. 20134010200600 ) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry and Energy. ",

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journal = "Catalysis Today",

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AU - Yin, Hang

AU - Choi, Jungkyu

AU - Yip, Alex C.K.

N1 - Funding Information: We would like to thank the Royal Society of New Zealand for funding this work under the NZ-Korea Joint Research Projects. We also acknowledge technical support from our technician, Mr. Stephen Hood (University of Canterbury), regarding reactor design and manufacturing. This work was also supported by the Korea CCS R&D Center (KCRC) grant funded by the Korea government ( Ministry of Science, ICT & Future Planning ) (No. 2014M1A8A1049309 ) and the Human Resources Development Program (No. 20134010200600 ) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry and Energy.

PY - 2016/5/1

Y1 - 2016/5/1

N2 - 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.

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KW - Core-shell structure

KW - Zeolitic imidazolate framework

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