Liquid‐Phase Epitaxially Grown Metal–Organic Framework Thin Films for Efficient Tandem Catalysis Through Site‐Isolation of Catalytic Centers
Abstract
A functional metal–organic framework (MOF) composed of robust porphyrinic material (RPM) based on the pillared‐paddlewheel topology is prepared with large 3 D 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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 13, 2016
- Source ID
- 10.1002/cplu.201600046
Entities
People
- Chung‐wei Kung
- Joseph T. Hupp
- Kainan Zhang
- M. Hassan Beyzavi
- Monica So
- Nicolaas A. Vermeulen
- Omar Farha
Organizations
- Army Research Office
- California State University
- Gates Foundation
- German Research Foundation
- King Abdulaziz University
- Northwestern University