Results 71 to 80 of about 162,868 (272)

Intrabandgap States Engineering in Functionalized Nanodiamond to Generate Solvated Electrons for Photocatalysis Under Solar Illumination

open access: yesAdvanced Functional Materials, EarlyView.
The negative electron affinity of diamond allows to emit highly reductive electrons. By introducing intra‐bandgap states and an optimized electron transfer mechanism by surface functionalization with Ru(bpy)3, the formation of solvated electrons is achieved upon solar irradiation.
Benjamin Kiendl   +20 more
wiley   +1 more source

Methane concentration and isotopic composition (d13C-CH4) in the Nerja Cave system (South Spain) [PDF]

open access: yes, 2016
Air in underground caves often has methane (CH4) concentrations below the atmospheric level, due to methanotrophic or other unkown CH4 consuming processes. Caves are thus considered a potential sink for atmospheric methane.
Benavente Herrera, José   +5 more
core  

Trace metal requirements for microbial enzymes involved in the production and consumption of methane and nitrous oxide [PDF]

open access: yes, 2012
Fluxes of greenhouse gases to the atmosphere are heavily influenced by microbiological activity. Microbial enzymes involved in the production and consumption of greenhouse gases often contain metal cofactors.
Glass, Jennifer B., Orphan, Victoria J.
core   +3 more sources

Electrocatalytic Reduction of CO2 to Ethylene: Catalyst Design and Synchrotron‐Based Characterizations

open access: yesAdvanced Functional Materials, EarlyView.
This review evaluates strategies for electrochemical CO2 reduction to ethylene, focusing on copper‐based catalyst design and microenvironment modulation to achieve industrial‐grade performance. By leveraging operando synchrotron‐based characterizations, we provide a multiscale understanding of dynamic structural transformations and key reaction ...
Meng Zhang, Zuolong Chen, Yimin A. Wu
wiley   +1 more source

Oxidative coupling of methane in a mixed-conducting perovskite membrane reactor [PDF]

open access: yes, 1995
Ionic-electronic mixed-conducting perovskite-type oxide La0.6Sr0.4Co0.8Fe0.2O3 was applied as a dense membrane for oxygen supply in a reactor for methane coupling.
Bouwmeester, H.J.M.   +2 more
core   +2 more sources

Metal–Organic Frameworks for Gaseous Pollutant Management: From Capture to Neutralization and Reutilization

open access: yesAdvanced Functional Materials, EarlyView.
This review maps how MOFs can manage hazardous gases by combining adsorption, neutralization, and reutilization, enabling sustainable air‐pollution control. Covering chemical warfare agent simulants, SO2, NOx, NH3, H2S, and volatile organic compounds, it highlights structure‐guided strategies that boost selectivity, water tolerance, and cycling ...
Yuanmeng Tian   +8 more
wiley   +1 more source

Thermochemical oxidation of methane by manganese oxides in hydrothermal sediments

open access: yesCommunications Earth & Environment, 2023
Microbial anaerobic oxidation of methane coupled to the reduction of Mn(IV)-oxides, typically MnO2, derived from continental weathering and riverine transport has been proposed as a globally important sink of methane.
Qin Huang   +6 more
doaj   +1 more source

Unravelling the Atomic Structure of a Metal‐Covalent Organic Framework Assembled from Ruthenium Metalloligands

open access: yesAdvanced Materials, Volume 37, Issue 13, April 2, 2025.
Metal‐covalent organic frameworks (MCOFs) are novel porous materials that exhibit the advantages of covalent and metal‐organic frameworks. However, it is extremely difficult to resolve their atomic structure and better understand their structure‐properties relation. This work utilizes a synergistic combination of advanced microscopy, spectroscopic, and
Seán Hennessey   +11 more
wiley   +1 more source

Investigation on the aerobic methanotrophic community and the dominant taxon Methylomarinum in seagrass ecosystem

open access: yesEnvironmental Microbiome
Background Methanotrophs are a key biological methane sink, and aerobic methanotrophs critically reduce wetland methane emissions under global climate change.
Tongyin Liang   +9 more
doaj   +1 more source

Inhibition Experiments on Anaerobic Methane Oxidation [PDF]

open access: yesApplied and Environmental Microbiology, 1985
Anaerobic methane oxidation is a general process important in controlling fluxes of methane from anoxic marine sediments. The responsible organism has not been isolated, and little is known about the electron acceptors and substrates involved in the process.
Alperin, Marc J, Reeburgh, William S
openaire   +4 more sources

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