Themed collection Integrated approaches for methane activation

32 items
Editorial

Introduction to integrated approaches for methane activation

Kenichi Shimizu, Wataru Ueda & Hua Song introduce the Catalysis Science & Technology themed collection on Integrated approaches for methane activation.

Graphical abstract: Introduction to integrated approaches for methane activation
From the themed collection: Integrated approaches for methane activation
Perspective

Zeolite-based catalysts for oxidative upgrading of methane: design and control of active sites

Various reported active sites in zeolite-based catalysts categorized into three groups in terms of their origin have been overviewed from the viewpoints of their performance, structure, and catalysis.

Graphical abstract: Zeolite-based catalysts for oxidative upgrading of methane: design and control of active sites
From the themed collection: Integrated approaches for methane activation
Minireview

Functionalization of methane using molecular metal complexes as catalysts

Efficient and selective functionalization of methane is one of the most important tasks in chemistry in light of its utilization as a naturally abundant feedstock toward the development of a sustainable society.

Graphical abstract: Functionalization of methane using molecular metal complexes as catalysts
From the themed collection: Integrated approaches for methane activation
Open Access Review Article

Methane monooxygenases; physiology, biochemistry and structure

Methane monooxygenases (MMOs) are potential biocatalysts for industrial methanol production from methane. We summarize recent structural and biochemical studies of pMMO and discuss the future directions to develop efficient and robust biocatalysts.

Graphical abstract: Methane monooxygenases; physiology, biochemistry and structure
From the themed collection: Integrated approaches for methane activation
Review Article

Photocatalytic conversion of carbon dioxide, methane, and air for green fuels synthesis

Green fuels are derived from renewable resources that can replace or reduce the use of fossil fuels, and they can help reduce carbon emissions and dependence on finite resources including oil and natural gas.

Graphical abstract: Photocatalytic conversion of carbon dioxide, methane, and air for green fuels synthesis
From the themed collection: Integrated approaches for methane activation
Paper

Selective conversion of methane to ethane and hydrogen over In/molecular-sieve-3A catalyst

The molecular-sieve-3A material functioned as a good support for the indium liquid metal catalyst for the dehydrogenative conversion of methane (DCM) to ethane, ethylene, and H2 with 100% selectivity at 873 K.

Graphical abstract: Selective conversion of methane to ethane and hydrogen over In/molecular-sieve-3A catalyst
From the themed collection: Integrated approaches for methane activation
Paper

Insights into the role of water and surface OH species in methane activation on copper oxide: a combined theoretical and experimental study

An integrated theoretical and experimental investigation reveals how the presence of water alters the activity of metal oxide catalysts in gas-phase activation and conversion of methane.

Graphical abstract: Insights into the role of water and surface OH species in methane activation on copper oxide: a combined theoretical and experimental study
From the themed collection: Integrated approaches for methane activation
Paper

Low temperature reforming of methane with CO2 over Pt/CeO2, Ni/CeO2 and Pt–Ni/CeO2 catalysts prepared by a solution-combustion method

This study investigates the low temperature reforming of methane with CO2 over mono-metallic (Pt/CeO2 and Ni/CeO2) and bi-metallic (Pt–Ni/CeO2) solid solution catalysts prepared by using a one-pot solution-combustion method.

Graphical abstract: Low temperature reforming of methane with CO2 over Pt/CeO2, Ni/CeO2 and Pt–Ni/CeO2 catalysts prepared by a solution-combustion method
From the themed collection: Integrated approaches for methane activation
Open Access Paper

Highly selective hydroxylation of gaseous alkanes at the terminal position by wild-type CYP153A33

Highly regioselective hydroxylation of propane at the terminal position has been achieved using CYP153A33 with decoy molecules. This combination can exhibit the ability to hydroxylate ethane and methane.

Graphical abstract: Highly selective hydroxylation of gaseous alkanes at the terminal position by wild-type CYP153A33
From the themed collection: Integrated approaches for methane activation
Paper

Direct methylation of benzene with methane over Co/MFI catalysts generated by self-dispersion of Co(OH)2

A methane–benzene reaction was performed over Co/MFI prepared with an aqueous solution of Co(OAc)2 and MFI zeolite.

Graphical abstract: Direct methylation of benzene with methane over Co/MFI catalysts generated by self-dispersion of Co(OH)2
From the themed collection: Integrated approaches for methane activation
Paper

Mechanistic studies on catalytic alkane oxidation by Murahashi's O2/copper(II)/aldehyde system

Catalytic alkane hydroxylation by Murahashi's O2/copper(II)/aldehyde system was revisited to obtain mechanistic details of the catalytic cycle including the reactive oxidant as well as the role of the copper catalyst.

Graphical abstract: Mechanistic studies on catalytic alkane oxidation by Murahashi's O2/copper(ii)/aldehyde system
From the themed collection: Integrated approaches for methane activation
Paper

c-Axis-oriented sheet-like Cu/AEI zeolite contributes to continuous direct oxidation of methane to methanol

The cubic and sheet-like AEI zeolites were prepared in the absence and presence of CTAB. Sheet-like Cu/AEI zeolite exhibited more stable and higher methanol formation rate than the cubic-shaped one due to the shortened straight channel length.

Graphical abstract: c-Axis-oriented sheet-like Cu/AEI zeolite contributes to continuous direct oxidation of methane to methanol
From the themed collection: Integrated approaches for methane activation
Open Access Paper

The selective oxidation of methane to methanol using in situ generated H2O2 over palladium-based bimetallic catalysts

The selective oxidation of methane to methanol, using in situ generated H2O2 has been investigated using a series of TS-1 supported palladium-based catalysts, with the introduction of Au or Ni considerably improving catalytic performance.

Graphical abstract: The selective oxidation of methane to methanol using in situ generated H2O2 over palladium-based bimetallic catalysts
From the themed collection: Integrated approaches for methane activation
Open Access Paper

Oxidative coupling of methane under microwave: core–shell catalysts for selective C2 production and homogeneous temperature control

The oxidative coupling of methane (OCM) was investigated using a catalyst with a core@shell structure or a physical mixture comprised of MgO and SiC or Fe3O4, which was thermally activated via conventional resistive heating or microwave heating.

Graphical abstract: Oxidative coupling of methane under microwave: core–shell catalysts for selective C2 production and homogeneous temperature control
From the themed collection: Integrated approaches for methane activation
Paper

Indirect design of OCM catalysts through machine learning of catalyst surface oxygen species

Catalysts for oxidative coupling of methane (OCM) were designed through machine learning of a property of surface oxygen species on the basis of the knowledge that catalytic performance for the OCM is affected by catalyst surface oxygen species.

Graphical abstract: Indirect design of OCM catalysts through machine learning of catalyst surface oxygen species
From the themed collection: Integrated approaches for methane activation
Paper

Tuning catalytic activity with steric and electron-withdrawing effects of a porphyrin substituent

The reactivity, spectroscopic, and kinetic studies of the catalytic reactions showed that the catalytic activity is determined by the balance of the rates of the formation, reaction, and decomposition reactions of the reactive intermediate.

Graphical abstract: Tuning catalytic activity with steric and electron-withdrawing effects of a porphyrin substituent
From the themed collection: Integrated approaches for methane activation
Paper

Co-activation of methane and nitrogen to acetonitrile over MoCx/Al2O3 catalysts

Methane and nitrogen were co-activated by MoCx/Al2O3 catalysts to produce acetonitrile.

Graphical abstract: Co-activation of methane and nitrogen to acetonitrile over MoCx/Al2O3 catalysts
From the themed collection: Integrated approaches for methane activation
Paper

Bismuth phosphate nanoparticle catalyst for direct oxidation of methane into formaldehyde

Monoclinic BiPO4 nanoparticles selectively gave HCHO for the direct oxidation of CH4 thorough the possible involvement of surface active oxygen species on BiPO4 in the activation of CH4.

Graphical abstract: Bismuth phosphate nanoparticle catalyst for direct oxidation of methane into formaldehyde
From the themed collection: Integrated approaches for methane activation
Paper

Mordenite-stabilised rhenium catalyst for partial oxidation of methane to syngas

A proton-type mordenite facilitates the reduction of hepta-valent Re species. The reduced Re species show a good catalytic activity toward the direct partial oxidation of CH4 to CO and subsequent reforming reactions.

Graphical abstract: Mordenite-stabilised rhenium catalyst for partial oxidation of methane to syngas
From the themed collection: Integrated approaches for methane activation
Paper

Insights into Pt–CN species on an alumina-supported platinum catalyst as active intermediates or inhibitors for low-temperature hydrogen cyanide synthesis from methane and nitric oxide

In situ measurements revealed that the Pt–CN species function not only as intermediates but also as inhibitors for low-temperature HCN synthesis.

Graphical abstract: Insights into Pt–CN species on an alumina-supported platinum catalyst as active intermediates or inhibitors for low-temperature hydrogen cyanide synthesis from methane and nitric oxide
From the themed collection: Integrated approaches for methane activation
Paper

Oxygenase mimicking immobilised iron complex catalysts for alkane hydroxylation with H2O2

Immobilised iron complex catalysts with hydrophobic reaction fields mimicking the active sites of enzymes constructed into the mesopores of SBA-15. Surface modification with a longer fluoroalkyl chain and Me3Si group improves catalytic activity.

Graphical abstract: Oxygenase mimicking immobilised iron complex catalysts for alkane hydroxylation with H2O2
From the themed collection: Integrated approaches for methane activation
Paper

Role of polyoxometalate precursors and supports in the selective oxidation of methane into formaldehyde using supported metal oxide subnanocluster catalysts

By examining various metal-containing polyoxometalate (POM) precursors and supports, it was found that catalysts prepared using Fe-containing POM precursors supported on SiO2 with a high specific surface area were effective for CH4 oxidation.

Graphical abstract: Role of polyoxometalate precursors and supports in the selective oxidation of methane into formaldehyde using supported metal oxide subnanocluster catalysts
From the themed collection: Integrated approaches for methane activation
Paper

Preparation of BCYF0.10–YDC/BCYF0.10–Ni dual-layer hollow fiber membrane for dry reforming of methane and hydrogen purification

A ceramic hydrogen permeable membrane reactor for dry reforming of methane (DRM) enables both the reaction and separation processes to be carried out simultaneously, producing synthesis gas and pure hydrogen while mitigating greenhouse gas emissions.

Graphical abstract: Preparation of BCYF0.10–YDC/BCYF0.10–Ni dual-layer hollow fiber membrane for dry reforming of methane and hydrogen purification
From the themed collection: Integrated approaches for methane activation
Paper

Non-thermal plasma assisted non-oxidative methane liquefaction for fuel production at near ambient conditions

The non-thermal plasma could effectively convert pure methane into gasoline-range hydrocarbons with limited coke formation over the SBA-15 catalyst.

Graphical abstract: Non-thermal plasma assisted non-oxidative methane liquefaction for fuel production at near ambient conditions
From the themed collection: Integrated approaches for methane activation
Paper

Photoelectrochemical C–H activation of methane to methyl radical at room temperature

Visible light illumination induced CH4 oxidation over a WO3 photoanode. The production of C2H6 implies the formation of methyl radicals through photoelectrochemical activation of methane.

Graphical abstract: Photoelectrochemical C–H activation of methane to methyl radical at room temperature
From the themed collection: Integrated approaches for methane activation
Paper

Dehydrogenative coupling of methane over Pt/Al2O3 catalysts: effect of hydrogen co-feeding

Pt/AI2O3 converts CH4 into C2 hydrocarbons by H2 co-feeding.

Graphical abstract: Dehydrogenative coupling of methane over Pt/Al2O3 catalysts: effect of hydrogen co-feeding
From the themed collection: Integrated approaches for methane activation
Open Access Paper

Leveraging machine learning engineering to uncover insights into heterogeneous catalyst design for oxidative coupling of methane

Unveiling current issues in the investigation of highly-active heterogeneous catalysts using machine learning engineering techniques was discussed in the case of oxidative coupling of methane with support vector regression and Bayesian optimization.

Graphical abstract: Leveraging machine learning engineering to uncover insights into heterogeneous catalyst design for oxidative coupling of methane
From the themed collection: Integrated approaches for methane activation
Paper

Enhanced coke-resistant Co-modified Ni/modified alumina catalyst for the bireforming of methane

Biogas has been highlighted as a renewable energy and local source for syngas production via reforming techniques to combat global warming effects and energy sustainability.

Graphical abstract: Enhanced coke-resistant Co-modified Ni/modified alumina catalyst for the bireforming of methane
From the themed collection: Integrated approaches for methane activation
Paper

Active and durable copper phosphate catalysts modified with metal oxides for methane oxidation with oxygen into formaldehyde

Copper phosphates as active catalysts for methane oxidation with O2 into formaldehyde were deposited on silica supports or dispersed with aluminum oxides in order to enhance their catalytic performance.

Graphical abstract: Active and durable copper phosphate catalysts modified with metal oxides for methane oxidation with oxygen into formaldehyde
From the themed collection: Integrated approaches for methane activation
Paper

Methane activation with nitric oxide at low temperatures on supported Pt catalysts: effects of the support

Pt supported on various metal oxides was examined for the activation of CH4 with NO at low temperatures and atmospheric pressure.

Graphical abstract: Methane activation with nitric oxide at low temperatures on supported Pt catalysts: effects of the support
From the themed collection: Integrated approaches for methane activation
Open Access Paper

Consequence of products from oxidative coupling of methane in a non-oxidative high temperature environment

Oxidative coupling of methane (OCM) is an exothermic reaction that results in the temperature rise towards the latter part of the reactor. This study reports the consequence of OCM product distribution after O2 depletion at high temperatures.

Graphical abstract: Consequence of products from oxidative coupling of methane in a non-oxidative high temperature environment
From the themed collection: Integrated approaches for methane activation
Paper

Evaluation of CH4 oxidation activity of high-valent iron-oxo species of a μ-nitrido-bridged heterodimer of iron porphycene and iron phthalocyanine

Catalytic CH4 oxidation activity of a μ-nitrido-bridged heterodimer of an iron phthalocyanine and an iron porphycene in an aqueous solution containing excess H2O2 was examined.

Graphical abstract: Evaluation of CH4 oxidation activity of high-valent iron-oxo species of a μ-nitrido-bridged heterodimer of iron porphycene and iron phthalocyanine
From the themed collection: Integrated approaches for methane activation
32 items

About this collection

This special collection of CS&T, Guest Edited by Kenichi Shimizu (Hokkaido University, Japan), Wataru Ueda (Kanagawa University, Japan) and Hua Song (University of Calgary, Canada) showcases recent prominent achievements within the field of catalytic methane conversion for promoting next-stage research worldwide. The developments of catalytic science and technologies in relation to methane utilization have long been difficult challenges, and nowadays the achievements of various catalytic methane conversion technologies are under increasing demand with the advent of carbon-neutral policies. In the last decade, various new catalytic routes and pathways for methane conversion, such as oxidation of methane to methanol, have been progressed remarkably. To respond to this, various research projects specifically dedicated to catalytic methane conversion have been conducted and have yielded innovative catalysts for methane conversion. 

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