Controllable Synthesis of Co/NC Catalysts with High-density Co-N Active Sites Derived from Co/Zn-ZIF for Cyclopropanation

Overview

Journal RSC Adv

Publisher Royal Society of Chemistry

Specialty Chemistry

Date 2024 Dec 18

PMID 39691230

Authors

Xin Yue

Jiangwei Li

Chunying Li

Zhixuan Wang

Yongmei Du

Daoan Sun

Hui Ma

Jian Lu

Affiliations

Soon will be listed here.

Abstract

Novel Co/NC heterogeneous catalysts were prepared by simply employing self-made Co/Zn-ZIF (zeolitic imidazolate framework) through pyrolysis. The samples were characterized by XRD, XPS, Raman, TEM and BET, and were successfully applied in a cyclopropanation reaction with a yield of 85%. Furthermore, this one-pot synthesized catalyst could be recycled several times without apparent deactivation. The content of Co-N active sites could be modified by adjusting the Co/Zn molar ratio of the ZIF precursor. The generation of Co-N could be attributed to the evaporation of Zn species, which provides rich micropores.

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