aThere is a widespread consensus that the hexavalent molybdenum initially available in the zeolite channels likely as MoO3,22 or as (Mo2O5)2+ dimers23-26 is first converted into active Mo2C carbide species,6 which are believed to represent the key compound in methane activation.10 有普遍公众...
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Methane is a key compound in the global carbon cycle that influences both nutrient cycling and the Earth’s climate. A limited number of microorganisms control the flux of biologically generated methane, including methane-metabolizing archaea that either produce or consume methane. Methanogenic and meth...
23. Similarly, sequencing thepmoAgene, which codes for a key subunit of the particulate methane monooxygenase (pMMO), and themmoXgene, which codes for a key subunit in the soluble methane monooxygenase (sMMO), has clarified the structure of methanotrophic communities in landfill cover soils24...
This technical note presents a simple, fast, reliable and cheap method to estimate the methane (CH4) production from animals by using the CH4 and carbon dioxide (CO2) concentrations in air near the animals combined with an estimation of the total CO2 production from information on intake of met...
Monitoring system for seafloor deformation during Methane Hydrate production test[C]//International Society of Offshore and Polar Engineers. Proceedings of the 10th (2013) ISOPE Ocean Mining and Gas Hydrates Symposium, ISOPE OMS 2013. Poland: Society of Petrophysicists and Well-Log Analysts, 2013:...
Competing Pathways in the Reaction of Bis(pentafluorophenyl)borane with Bis(<IMG src="http://www3.interscience.wiley.com/giflibrary/12b/eta.gif" border=0><SUP><FONT size=-1>5</FONT></SUP>-cyclopentadienyl)dimethylzirconium: Methane Elimination versus Methyl-Hydride Exchange and an Example of ...
Atmospheric methane growth reached an exceptionally high rate of 15.1 ± 0.4 parts per billion per year in 2020 despite a probable decrease in anthropogenic methane emissions during COVID-19 lockdowns1. Here we quantify changes in methane sources a
Matrix reactions of fluorohalomethanes with alkali metals: infrared spectrum and bonding in the monofluoromethyl radical. J. Phys. Chem. 75, 3235–3242 (1971). Google Scholar Fujiwara, Y. et al. Practical and innate carbon–hydrogen functionalization of heterocycles. Nature 492, 95–99 (2012...
To explain the abundant production of Λ4H observed in stopped-K- absorption on light nuclei, a theoretical model is proposed, in which the basic ingredient is formation and fragmentation of a Λ compound nucleus. Estimated Λ4H formation probabilities per stopped K- agree with the observed valu...