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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Meeting the moment: Reducing methane emissions and the need for better diagnostics
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Anaerobic oxidation of methane by aerobic methanotrophs in sub-Arctic lake sediments
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Impact of the biomass burning on methane variability during dry years in the Amazon measured from an aircraft and the AIRS sensor
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Direct Methane Oxidation by Copper- and Iron-Dependent Methane Monooxygenases
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Using Low-Pressure Methane Adsorption Isotherms for Higher-Throughput Screening of Methane Storage Materials
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A Mechanistic Change Results in 100 Times Faster CH Functionalization for Ethane versus Methane by a Homogeneous Pt Catalyst
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A review of dry reforming of methane over noble metal catalysts
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Functionalized high performance polymer membranes for separation of carbon dioxide and methane
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Insight into the phase evolution of a NiMgAl catalyst from the reduction stage to the post-reaction stage during the dry reforming of methane [Insight into the phase evolution of NiMgAl catalyst from reduction to post-reaction for dry reforming of methane]
Herein, phase evolution of a NiMgAl oxide catalyst at the reduction stage was qualitatively analysed and quantitatively determined by employing the continuous changes in its XRD intensity and TPR information. In conclusion, the stable crystallite size of both the active metal and spinel support was responsible for the long stability of the NiMgAl catalyst without carbon deposition during the DRM reaction.
Effects of Zinc on Particulate Methane Monooxygenase Activity and Structure
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Plants, microorganisms, and soil temperatures contribute to a decrease in methane fluxes on a drained Arctic floodplain
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Main-Group Compounds Selectively Oxidize Mixtures of Methane, Ethane, and Propane to Alcohol Esters
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Emissions in short-gated ns/ps/fs-LIBS for fuel-to-air ratio measurements in methane-air flames
A study of short-gated 10 nanosecond (ns), 100 picosecond (ps), and 100 femtosecond (fs) laser induced breakdown spectroscopy (LIBS) was conducted for fuel-to-air ratio (FAR) measurements in an atmospheric Hencken flame. The intent of the work is to understand which emission lines are available near the optical range in each pulse width regime and which emission ratios may be favorable for generating equivalence ratio calibration curves. The emission spectra in the range of 550–800 nm for ns-LIBS and ps-LIBS are mostly similar with slightly elevated atomic oxygen lines by ps-LIBS. Spectra from fs-LIBS show the lowest continuum background and prominent individual atomic lines, though have significantly weaker ionic emission from nitrogen. A qualitative explanation based on assumed local thermodynamic equilibrium and electron temperatures calculated by the N I I ( 565 n m ) and N I I ( 594 n m ) emissions is presented. In studying line emission ratios for FAR calculation, it is found that H α <#comment/> ( 656 n m ) / N I I ( 568 n m ) is best for FAR measurements with ns-LIBS and remains viable for ps-LIBS, while H α <#comment/> ( 656 n m ) / O I ( 777 n m ) is optimal for the ps-LIBS and fs-LIBS cases. Due to low continuum background and short time delay for spectra collection, fs-LIBS is very promising for high-speed FAR measurements using short-gated LIBS.