Liquid-Phase Epitaxially Grown Metal-Organic Framework Thin Films for Efficient Tandem Catalysis Through Site-Isolation of Catalytic Centers

M. Hassan Beyzavi, Nicolaas A. Vermeulen, Kainan Zhang, Monica So, Chung Wei Kung, Joseph T Hupp, Omar K. Farha

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A functional metal-organic framework (MOF) composed of robust porphyrinic material (RPM) based on the pillared-paddlewheel topology is prepared with large 3D channels, and is used to perform a tandem epoxidation/CO2 insertion reaction. The designated system benefits from two metalloporphyrins: 1)a Mn-porphyrin, which catalyzes the epoxidation of an olefin substrate, and 2)a Zn-porphyrin, which catalyzes the epoxide opening. By using an automated liquid-phase epitaxial growth system, the RPM-MOF is also prepared in layer-by-layer fashion as an ultrathin film on a self-assembled-monolayer-coated silicon platform. Deployed as a tandem catalyst, the film version yields a substantially higher catalytic turnover number for tandem methoxy-styrene epoxidation followed by CO2 insertion than the bulk crystalline MOF samples.

Original languageEnglish
JournalChemPlusChem
DOIs
Publication statusAccepted/In press - 2016

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Keywords

  • Cyclic carbonates
  • Epoxidation
  • Liquid-phase epitaxy
  • Metal-organic frameworks
  • Tandem catalysis

ASJC Scopus subject areas

  • Chemistry(all)

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