Results 71 to 80 of about 33,148 (256)
Recent Progress in Direct Conversion of Methane to Methanol Over Copper-Exchanged Zeolites
Frontiers in Chemistry, 2019 The conversion of methane into an easily transportable liquid fuel or chemicals has become a highly sought-after goal spurred by the increasing availability of cheap and abundant natural gas.
Min Bum Park +2 more
doaj +1 more source
Backbone‐Length‐Optimized Inhibitors Deliver Long‐Retention Selectivity in Area‐Selective ALD of VO2
Advanced Science, EarlyView.Area‐selective VO2 ALD is found to depend critically on inhibitor backbone length, which governs physisorption, chemisorption stability, and packing efficiency in a coupled manner. An intermediate backbone‐length achieves the best long‐retention selectivity, establishing a chemically and geometrically grounded design principle for small‐molecule ...
Hae Lin Yang +9 more
wiley +1 more source
AtmosphereEarthen final covers (EFCs) are widely used to mitigate environmental impacts from landfills, particularly in controlling methane emissions and groundwater contamination.
Tao Wu +4 more
doaj +1 more source
Methane Catalytic Combustion on Pd9/?-Al2O3 with Different Degrees of Pd Oxidation
CHIMIA, 2013 : This research is focused on the analysis of adsorbed CH4 intermediates at oxidized Pd9 nanoparticles supported on ? -alumina. From first-principle density functional theory (DFT) calculations, several configurations, charge transfer and ...
Izabela Czekaj +2 more
doaj +1 more source
Lattice Distortion‐Driven Metal Exsolution in Perovskite Oxides
Advanced Science, EarlyView.This study elucidates the mechanism of lattice distortion‐driven exsolution through a combination of computational simulations and experimental approaches. Lattice distortion facilitates the formation of oxygen vacancies and subsequent metal segregation, thereby enhancing the exsolution behavior.
Yo Han Kim +5 more
wiley +1 more source
Advanced Science, EarlyView.A new data‐efficient framework combining DFT calculations, a neural network model, and automated graph analysis of catalytic reaction networks is proposed and applied to CO2 hydrogenation on transition metal nanoparticles. The analysis shows how efficient C2 oxygenate production requires a balance between CHx formation, C–C coupling, protonation, and ...
Mikhail V. Polynski, Sergey M. Kozlov
wiley +1 more source
Electrocatalytic Coupling Conversion of Methane by Dual‐Site Control in Nickel Oxyhydroxide
Advanced Science, EarlyView.Electrocatalytic coupling conversion of methane (CH4) is accomplished on the nickel oxyhydroxide (NiOOH), wherein the Ni─O dual‐site is triggered via the proper electronic interaction, synergistically promoting the C─H activation and C─C formation, enabling a selective and efficient C2 product generation route under ambient conditions. ABSTRACT Methane
Kailong Lu +7 more
wiley +1 more source
Angewandte Chemie, EarlyView.A critical step, dry reforming of methane (DRM) converts biogas into useful syngas. Yet trace H2S in biogas rapidly poisons DRM catalysts, limiting practical use. We developed a robust Pt/CeO2 catalyst sustaining DRM activity via CO2‐induced reverse lattice oxygen spillover in H2S‐rich environments.
Jun Liu +11 more
wiley +2 more sources
A metagenomic study of methanotrophic microorganisms in Coal Oil Point seep sediments
BMC Microbiology, 2011 Background Methane oxidizing prokaryotes in marine sediments are believed to function as a methane filter reducing the oceanic contribution to the global methane emission.
Haverkamp Thomas HA +4 more
doaj +1 more source
Stratospheric methane and nitrous oxide
Advances in Space Research, 1993 A model of the abundances of nitrous oxide and methane in the stratosphere has been produced using data from the Stratospheric and Mesospheric Sounder on Nimbus 7, and reported in the Handbook for Map, Vol. 31 (in press). This paper describes the data which went into the model, its limitations, and the general behaviour of methane and nitrous oxide in ...
openaire +2 more sources