Low-temperature CO oxidation using a metal organic framework with unsaturated Co2+ sites

Takhyeon Kim, Dae Han Kim, Seungik Kim, Young Dok Kim, Youn Sang Bae, Chang Yeon Lee

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11 Citations (Scopus)

Abstract

A series of isostructural metal-organic frameworks (MOFs), i.e.; M-MOF-74 (M = Co2+, Mg2+, and Zn2+), were prepared and tested as gas-phase catalysts for CO oxidation reactions. Maintenance of the porous structure of M-MOF-74 after degassing at high temperature and exposure to air for 24 h enabled a successful gas-phase catalytic study of CO oxidation. Among the M-MOF-74 materials tested, only Co-MOF-74 exhibited catalytic activity because of the unrivalled Lewis acidic character of the coordinatively unsaturated sites (CUSs) in Co-MOF-74. Moreover, the catalytic activity of Co-MOF-74 was superior to that of previously reported MOF-based CO oxidation catalysts in terms of the light-off temperature and specific rate. The high density of CUSs and remarkable porosity of Co-MOF-74 are responsible for the efficient catalytic activity.

Original languageEnglish
Pages (from-to)18-22
Number of pages5
JournalPolyhedron
Volume90
DOIs
Publication statusPublished - 2015 Apr 18

Bibliographical note

Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2013R1A1A1058839). This work was also supported by the Technology Innovation Program (10048649) funded by the Ministry of Trade, Industry and Energy (MI, Korea).

Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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