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Copper-Based Metal-Organic Framework with a Tetraphenylethylene-Tetrazole Linker for Visible-Light-Driven CO Photoconversion. | LitMetric

Copper-Based Metal-Organic Framework with a Tetraphenylethylene-Tetrazole Linker for Visible-Light-Driven CO Photoconversion.

Inorg Chem

National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Polyoxometalate Science of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun 130024, China.

Published: April 2022

AI Article Synopsis

  • * A new copper-based metal-organic framework (MOF) was created using a special bulky linker and demonstrated effective CO reduction, achieving high production rates and recyclability.
  • * The study found that only the 5-coordinated copper site in the MOF is active for CO reduction, effectively stabilizing the intermediate and enabling CO to be easily released.

Article Abstract

The design of efficient and inexpensive photocatalysts for CO photoreduction under visible light is of great significance for the sustainable development of the entire society. Herein, a copper-based metal-organic framework (MOF) () using a bulky tetraphenylethylene-tetrazole linker is synthesized and successfully used as a photocatalyst for CO reduction. The structural characterizations, as well as the photophysical properties, are investigated systematically. In the heterogeneous catalytic system, exhibits a robust CO production activity up to 2.71 mmol g h with excellent recyclability along with a selectivity of 82.8%, which is comparable with those of the reported copper-based MOF system. Theoretical calculations demonstrated that, among three kinds of coordinated model, only the 5-coordinated Cu site is active for CO reduction, in which the *COOH intermediate is stabilized and CO is readily desorbed. The results obtained herein can provide fresh insights into the realization of efficient copper-functionalized crystalline photocatalysts for CO reduction.

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Source
http://dx.doi.org/10.1021/acs.inorgchem.2c00235DOI Listing

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