In-situ-produced methane and methane/carbon monoxide mixtures for return propulsion from Mars

1995 ◽  
Vol 11 (5) ◽  
pp. 1056-1062 ◽  
Author(s):  
Thomas A. Sullivan ◽  
Diane Linne ◽  
Lee Bryant ◽  
Kriss Kennedy
Keyword(s):  
Carbon Monoxide ◽  
Methane Carbon

scholarly journals Chemical interactions between Saturn’s atmosphere and its rings

Science ◽  
2018 ◽  
Vol 362 (6410) ◽  
pp. eaat2382 ◽  
Author(s):  
J. H. Waite ◽  
R. S. Perryman ◽  
M. E. Perry ◽  
K. E. Miller ◽  
J. Bell ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Volatile Compounds ◽  
Mass Spectrometer ◽  
Chemical Interaction ◽  
Molecular Nitrogen ◽  
Upper Atmosphere ◽  
Atmospheric Structure ◽  
Ring Composition ◽  
Methane Carbon

The Pioneer and Voyager spacecraft made close-up measurements of Saturn’s ionosphere and upper atmosphere in the 1970s and 1980s that suggested a chemical interaction between the rings and atmosphere. Exploring this interaction provides information on ring composition and the influence on Saturn’s atmosphere from infalling material. The Cassini Ion Neutral Mass Spectrometer sampled in situ the region between the D ring and Saturn during the spacecraft’s Grand Finale phase. We used these measurements to characterize the atmospheric structure and material influx from the rings. The atmospheric He/H2 ratio is 10 to 16%. Volatile compounds from the rings (methane; carbon monoxide and/or molecular nitrogen), as well as larger organic-bearing grains, are flowing inward at a rate of 4800 to 45,000 kilograms per second.

Support and Gas Environment Effects on the Preferential Oxidation of Carbon Monoxide over Co3O4 Catalysts Studied in situ

2021 ◽  
pp. 120450
Author(s):  
Thulani M. Nyathi ◽  
Mohamed I. Fadlalla ◽  
Nico Fischer ◽  
Andrew P.E. York ◽  
Ezra J. Olivier ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Preferential Oxidation ◽  
Environment Effects ◽  
Gas Environment ◽  
Oxidation Of Carbon Monoxide

An intensity modulated fiber-optic carbon monoxide sensor based on Ag/Co-MOF in-situ coated thin-core fiber

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Lian Wang ◽  
Juncheng Zhou ◽  
Yuhao Chen ◽  
Liu Xiao ◽  
Guojia Huang ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Carbon Monoxide ◽  
Photoelectron Spectroscopy ◽  
Fiber Optic ◽  
Temperature Stability ◽  
Single Mode ◽  
X Ray ◽  
Intensity Modulated ◽  
Core Fiber

Abstract An intensity modulated fiber-optic carbon monoxide (CO) sensor by integrating in-situ solvothermal-growth Ag/Co-MOF sensing film is fabricated and evaluated. The Michelson interference sensing structure is composed of single-mode fiber (SMF), enlarged taper, thin-core fiber (TCF), and Ag film as the reflector. Ag/Co-MOF was coated on the cladding of the TCF as the sensing material, and the enlarged taper is located between TCF and SMF as the coupler. The structure, morphology, compositions and thermal stability of the Ag/Co-MOF sensing film were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), etc. The sensitivity of the sensor is 0.04515 dB/ppm, and the fitting parameter of the CO concentration is 0.99876. In addition, the sensor has the advantages of good selectivity, good signal and temperature stability, and it has potential application in trace CO detection.

Thermodynamic Properties of the System Methane‐Carbon Monoxide at 90.67°K

1955 ◽  
Vol 23 (8) ◽  
pp. 1551-1551 ◽  
Author(s):  
V. Mathot ◽  
L. A. K. Staveley ◽  
J. A. Young ◽  
N. G. Parsonage
Keyword(s):  
Carbon Monoxide ◽  
Thermodynamic Properties ◽  
Methane Carbon

RUMEN GAS ANALYSIS BY GAS-SOLID CHROMATOGRAPHY

1961 ◽  
Vol 41 (2) ◽  
pp. 187-196 ◽  
Author(s):  
J. M. McArthur ◽  
J. E. Miltimore
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Hydrogen Sulphide ◽  
Sample Volume ◽  
Gas Analysis ◽  
Complete Analysis ◽  
Thermal Detector ◽  
Thermal Detection ◽  
Methane Carbon

Methods are described for sampling and analysing rumen gases. The analysis requires less than 15 minutes for the determination of hydrogen, oxygen, nitrogen, methane, carbon monoxide, carbon dioxide, and hydrogen sulphide, i.e., for all gases occurring in the rumen. The method is sensitive and requires only a small quantity of sample, and the sample volume need not be known. The presence of water or other vapours in the sample does not influence the results. Relative thermal detector responses have been determined for gases which occur in the rumen. These eliminate the necessity for the calibration of gas chromatographs using thermal detection. The first complete analysis of rumen gas is presented.

In Situ X-Ray Absorption Spectroscopy Studies of Carbon Monoxide Oxidation in the Presence of Nanocomposite Cu–Fe–Al Oxide Catalysts

2021 ◽  
Vol 62 (1) ◽  
pp. 160-171
Author(s):  
A. M. Kremneva ◽  
A. V. Fedorov ◽  
A. A. Saraev ◽  
O. A. Bulavchenko ◽  
V. A. Yakovlev ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Absorption Spectroscopy ◽  
Carbon Monoxide Oxidation ◽  
Oxide Catalysts ◽  
X Ray ◽  
Spectroscopy Studies ◽  
X Ray Absorption ◽  
Al Oxide

Methane, Carbon Monoxide and Methylchloroform in the Southern Hemisphere

1986 ◽  
pp. 201-240
Author(s):  
P. J. Fraser ◽  
P. Hyson ◽  
R. A. Rasmussen ◽  
A. J. Crawford ◽  
M. A. K. Khalil
Keyword(s):  
Carbon Monoxide ◽  
Southern Hemisphere ◽  
Methane Carbon

In-situ generation of graphene network in silicon carbide fibers: Role of iodine and carbon monoxide

Carbon ◽  
2020 ◽  
Vol 158 ◽  
pp. 110-120
Author(s):  
Junsung Hong ◽  
Youngjin Ko ◽  
Kwang-Yeon Cho ◽  
Dong-Geun Shin ◽  
Prabhakar Singh ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Silicon Carbide ◽  
Silicon Carbide Fibers ◽  
In Situ Generation

Palladium‐Catalyzed Chlorocarbonylation of Aryl (Pseudo)Halides Through In Situ Generation of Carbon Monoxide

2020 ◽  
Vol 59 (41) ◽  
pp. 17887-17896 ◽  
Author(s):  
Philip Boehm ◽  
Sven Roediger ◽  
Alessandro Bismuto ◽  
Bill Morandi
Keyword(s):  
Carbon Monoxide ◽  
Palladium Catalyzed ◽  
In Situ Generation ◽  
Pseudo Halides
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