https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37280 4) to organic oxygenates utilizing heterogeneous and homogeneous processes conducted in the gaseous or liquid phase is reviewed. The most active catalytic systems are examined in terms of rates, longevity, and reaction mechanisms. Despite significant effort, the successful heterogeneous mimicking of selective CH₄ oxidation performed in an enzymatic system (methane monooxygenase) is still elusive. Under mild reaction conditions, the reaction is too slow, and under harsh conditions, total oxidation prevails. Thus, of particular interest herein is the assessment of oxidation at intermediate temperatures to 1) reduce total oxidation and 2) obtain sufficient concentration of activated oxygen and CH₄ species. Important operational parameters such as reaction conditions, catalyst preparation methods, and cofeeding of chemicals, which significantly affect the yield of desired products, are discussed. One particular system that is successful is the catalytic conversion of CH₄ to methanol under mild conditions using nitrous oxide (N₂O) with Fe-based catalysts or oxygen (O₂) with Cu-based catalysts. Special attention is paid to the controversy related to the identification of active sites, where the oxygen species suitable for CH₄ oxidation are purportedly formed.]]> Wed 16 Sep 2020 18:36:19 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36551 Tue 30 Jun 2020 11:56:24 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50988 Tue 14 Nov 2023 14:56:57 AEDT ]]>