Selective oxidation of methane by the bis(mu-oxo)dicopper core stabilized on ZSM-5 and mordenite zeolites

J Am Chem Soc. 2005 Feb 9;127(5):1394-5. doi: 10.1021/ja047158u.

Abstract

This work reports on the capability of the O2-activated Cu-ZSM-5 and Cu-MOR zeolites to selectively convert methane into methanol at a temperature of 398 K. A strong correlation between (i) the activity and (ii) the intensity of the 22 700 cm-1 UV-vis band, assigned to the bis(mu-oxo)dicopper core, is found (i) as a function of the reaction temperature, (ii) as a function of the Cu loading of the zeolite, and (iii) in comparison to other Cu materials. These three lines of evidence firmly support the key role of the bis(mu-oxo)dicopper core in this selective, low-temperature hydroxylation of methane.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aluminum Silicates / chemistry*
  • Biomimetic Materials / chemistry
  • Copper / chemistry*
  • Kinetics
  • Methane / chemistry*
  • Monophenol Monooxygenase / chemistry
  • Organometallic Compounds
  • Oxidation-Reduction
  • Oxygen / chemistry*
  • Oxygenases / chemistry
  • Oxyquinoline / analogs & derivatives*
  • Zeolites / chemistry*

Substances

  • Aluminum Silicates
  • Organometallic Compounds
  • bis(8-quinolinolato)copper(II)
  • mordenite
  • Zeolites
  • Oxyquinoline
  • Copper
  • Oxygenases
  • methane monooxygenase
  • Monophenol Monooxygenase
  • Methane
  • Oxygen