Homogeneous catalytic systems for the oxidative functionalization of alkanes: design, oxidants, and mechanisms

Чепайкин, Е. Г.; Menchikova, G. N.; Pomogailo, S. I.

doi:10.1007/s11172-019-2581-5

Cited by 14 publications

(4 citation statements)

References 56 publications

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“…Indeed, these authors propose mechanisms for methane activation involving Rh oxo or peroxo complexes formed in the presence of hypoiodous acid (HOI) itself derived from cooxidation of HI and CO (i.e., HI + O 2 + CO → HOI + CO 2 ). 219 4.1.3. Overview.…”

Section: Methane To Aceticmentioning

confidence: 99%

“…The very considerable body of work on methane functionalization by homogeneous catalysis has been comprehensively reviewed by Periana and colleagues , and by Chepaikin et al Homogeneous catalysis often provides a greater opportunity for mechanistic analysis than heterogeneous catalysis, and we refer readers to these insightful, expert reviews for this interpretation. In this article, we will limit our comments to summaries of selected work to exemplify some of the approaches taken, focusing on catalytic systems using O 2 or O 2 regenerable oxidants.…”

Section: Liquid Phase Selective Methane Oxidationmentioning

confidence: 99%

“…In summary, work with homogeneous catalysts has provided important insights into mechanisms and strategies for methane functionalization, as discussed much more comprehensively in the reviews referenced above. , However, to date, these do not provide a basis for the development of practical processes. One interesting new direction could be combination with electrochemistry (Figure ).…”

Section: Liquid Phase Selective Methane Oxidationmentioning

confidence: 99%

“…Importantly, these authors also quantify CO 2 formation (from CO), which is always more than an order of magnitude greater than liquid products from methane, showing that neither CO nor O 2 are used efficiently. Indeed, these authors propose mechanisms for methane activation involving Rh oxo or peroxo complexes formed in the presence of hypoiodous acid (HOI) itself derived from co-oxidation of HI and CO (i.e., HI + O 2 + CO → HOI + CO 2 ) …”

Section: Liquid Phase Selective Methane Oxidationmentioning

confidence: 99%

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Methane Oxidation to Methanol

et al. 2022

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The direct transformation of methane to methanol remains a significant challenge for operation at a larger scale. Central to this challenge is the low reactivity of methane at conditions that can facilitate product recovery. This review discusses the issue through examination of several promising routes to methanol and an evaluation of performance targets that are required to develop the process at scale. We explore the methods currently used, the emergence of active heterogeneous catalysts and their design and reaction mechanisms and provide a critical perspective on future operation. Initial experiments are discussed where identification of gas phase radical chemistry limited further development by this approach. Subsequently, a new class of catalytic materials based on natural systems such as iron or copper containing zeolites were explored at milder conditions. The key issues of these technologies are low methane conversion and often significant overoxidation of products. Despite this, interest remains high in this reaction and the wider appeal of an effective route to key products from C–H activation, particularly with the need to transition to net carbon zero with new routes from renewable methane sources is exciting.

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Section: Methane To Aceticmentioning

confidence: 99%