The Development of Yolk–Shell-Structured Pd&ZnO@Carbon Submicroreactors with High Selectivity and Stability

Hao Tian, Fei Huang, Yihan Zhu, Shaomin Liu, Yu Han, Mietek Jaroniec, Qihua Yang, Hongyang Liu*, Gao Qing Max Lu, Jian Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

Design of multicomponent yolk–shell structures is crucial for the fabrication of micro/nanoreactors for a variety of applications. This work reports the rational design and synthesis of yolk–shell-structured submicroreactors with loaded metal nanoparticles into ZnO–microporous carbon core–shell structures. The solvothermal treatment and carbonization process of uniform zeolitic imidazolate framework-8 (ZIF-8)@resin polymer core–shell structures leads to the generation of yolk–shell-structured ZnO@carbon. The synthesis conditions are optimized to track the evolution of ZIF-8 in a confined space of resin polymer as a submicroreactor itself. It is found that nanoribbon evolution occurs via the formation of the intermediate needle-like particles. The Pd&ZnO@carbon submicroreactor is shown to be a highly selective catalyst (selectivity >99%) for hydrogenation of phenylacetylene to phenylethylene. The excellent performance of Pd&ZnO@carbon particles is evidenced by higher conversion and selectivity than that of Pd/ZnO and Pd/C with similar Pd loading. Furthermore, Pd&ZnO@carbon submicroreactors show superior catalytic stability, and no deactivation after 25 h of reaction. The proposed strategy is promising for the design of multifunctional micro/nanoreactors or nanocontainers for construction of artificial cells.

Original languageEnglish (US)
Article number1801737
JournalAdvanced Functional Materials
Volume28
Issue number32
DOIs
StatePublished - Aug 8 2018

Keywords

  • metal–organic frameworks
  • phenylacetylene hydrogenation
  • submicroreactors
  • yolk–shell particles
  • zeolite imidazolate frameworks

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrochemistry

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