Structural Evolution of Iron-Loaded Metal-Organic Framework Catalysts for Continuous Gas-Phase Oxidation of Methane to Methanol
Issued Date
2023-01-01
Resource Type
ISSN
19448244
eISSN
19448252
Scopus ID
2-s2.0-85162264093
Journal Title
ACS Applied Materials and Interfaces
Rights Holder(s)
SCOPUS
Bibliographic Citation
ACS Applied Materials and Interfaces (2023)
Suggested Citation
Rungtaweevoranit B., Abdel-Mageed A.M., Khemthong P., Eaimsumang S., Chakarawet K., Butburee T., Kunkel B., Wohlrab S., Chainok K., Phanthasri J., Wannapaiboon S., Youngjan S., Seehamongkol T., Impeng S., Faungnawakij K. Structural Evolution of Iron-Loaded Metal-Organic Framework Catalysts for Continuous Gas-Phase Oxidation of Methane to Methanol. ACS Applied Materials and Interfaces (2023). doi:10.1021/acsami.3c03310 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/87701
Title
Structural Evolution of Iron-Loaded Metal-Organic Framework Catalysts for Continuous Gas-Phase Oxidation of Methane to Methanol
Other Contributor(s)
Abstract
Catalytic partial oxidation of methane presents a promising route to convert the abundant but environmentally undesired methane gas to liquid methanol with applications as an energy carrier and a platform chemical. However, an outstanding challenge for this process remains in developing a catalyst that can oxidize methane selectively to methanol with good activity under continuous flow conditions in the gas phase using O2 as an oxidant. Here, we report a Fe catalyst supported by a metal-organic framework (MOF), Fe/UiO-66, for the selective and on-stream partial oxidation of methane to methanol. Kinetic studies indicate the continuous production of methanol at a superior reaction rate of 5.9 × 10-2 μmolMeOH gFe-1 s-1 at 180 °C and high selectivity toward methanol, with the catalytic turnover verified by transient methane isotopic measurements. Through an array of spectroscopic characterizations, electron-deficient Fe species rendered by the MOF support is identified as the probable active site for the reaction.