Reactions of Atomic Hydrogen with Formic Acid and Carbon Monoxide in Solid Parahydrogen I: Anomalous Effect of Temperature

2014 ◽  
Vol 118 (36) ◽  
pp. 7640-7652 ◽  
Author(s):  
Leif O. Paulson ◽  
Fredrick M. Mutunga ◽  
Shelby E. Follett ◽  
David T. Anderson
Keyword(s):  
Carbon Monoxide ◽  
Formic Acid ◽  
Atomic Hydrogen ◽  
Effect Of Temperature ◽  
Anomalous Effect

Acetylene chemisorption at palladium: Effect of temperature and structure of the surface

1984 ◽  
Vol 49 (6) ◽  
pp. 1448-1458
Author(s):  
Josef Kopešťanský
Keyword(s):  
Work Function ◽  
Atomic Hydrogen ◽  
Effect Of Temperature ◽  
Thermally Stable ◽  
Template Effect ◽  
Temperature Range ◽  
Adsorbed Layers ◽  
Different Types ◽  
Adsorption Complexes ◽  
Low Coverage

The effect of temperature and structure of the palladium surfaces on acetylene chemisorption was studied along with the interaction of the adsorbed layers with molecular and atomic hydrogen. The work function changes were measured and combined with the volumetric measurements and analysis of the products. At temperature below 100 °C, acetylene is adsorbed almost without dissociation and forms at least two different types of thermally stable adsorption complexes. Acetylene adsorbed at 200 °C is partly decomposed, especially in the low coverage region. Besides the above mentioned effects, the template effect of adsorbed acetylene was studied in the temperature range from -80° to 25 °C. It has been shown that this effect is a typical phenomenon of the palladium-acetylene system which is not due to surface impurities.

Oxidation of carbon monoxide and formic acid on bulk and nanosized Pt–Co alloys

2011 ◽  
Vol 16 (2) ◽  
pp. 587-595 ◽  
Author(s):  
Maja D. Obradović ◽  
Amalija V. Tripković ◽  
Snežana Lj. Gojković
Keyword(s):  
Carbon Monoxide ◽  
Formic Acid ◽  
Co Alloys ◽  
Oxidation Of Carbon Monoxide

scholarly journals Tropospheric Emission Spectrometer (TES) satellite observations of ammonia, methanol, formic acid, and carbon monoxide over the Canadian oil sands: validation and model evaluation

2015 ◽  
Vol 8 (12) ◽  
pp. 5189-5211 ◽  
Author(s):  
M. W. Shephard ◽  
C. A. McLinden ◽  
K. E. Cady-Pereira ◽  
M. Luo ◽  
S. G. Moussa ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Air Quality ◽  
Formic Acid ◽  
Model Evaluation ◽  
Oil Sands ◽  
Field Campaign ◽  
Infrared Observations ◽  
Multi Scale ◽  
Global Environmental ◽  
Scale Modelling

Abstract. The wealth of air quality information provided by satellite infrared observations of ammonia (NH3), carbon monoxide (CO), formic acid (HCOOH), and methanol (CH3OH) is currently being explored and used for a number of applications, especially at regional or global scales. These applications include air quality monitoring, trend analysis, emissions, and model evaluation. This study provides one of the first direct validations of Tropospheric Emission Spectrometer (TES) satellite-retrieved profiles of NH3, CH3OH, and HCOOH through comparisons with coincident aircraft profiles. The comparisons are performed over the Canadian oil sands region during the intensive field campaign (August–September, 2013) in support of the Joint Canada–Alberta Implementation Plan for Oil Sands Monitoring (JOSM). The satellite/aircraft comparisons over this region during this period produced errors of (i) +0.08 ± 0.25 ppbv for NH3, (ii) +7.5 ± 23 ppbv for CO, (iii) +0.19 ± 0.46 ppbv for HCOOH, and (iv) −1.1 ± 0.39 ppbv for CH3OH. These values mostly agree with previously estimated retrieval errors; however, the relatively large negative bias in CH3OH and the significantly greater positive bias for larger HCOOH and CO values observed during this study warrant further investigation. Satellite and aircraft ammonia observations during the field campaign are also used in an initial effort to perform preliminary evaluations of Environment Canada's Global Environmental Multi-scale – Modelling Air quality and CHemistry (GEM-MACH) air quality modelling system at high resolution (2.5 × 2.5 km2). These initial results indicate a model underprediction of ~ 0.6 ppbv (~ 60 %) for NH3, during the field campaign period. The TES/model CO comparison differences are ~ +20 ppbv (~ +20 %), but given that under these conditions the TES/aircraft comparisons also show a small positive TES CO bias indicates that the overall model underprediction of CO is closer to ~ 10 % at 681 hPa (~ 3 km) during this period.

scholarly journals Mariner 6: Ultraviolet spectrum of Mars upper atmosphere

1971 ◽  
Vol 40 ◽  
pp. 253-256 ◽  
Author(s):  
C. A. Barth ◽  
W. G. Fastie ◽  
C. W. Hord ◽  
J. B. Pearce ◽  
K. K. Kelly ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Spectral Region ◽  
Atomic Hydrogen ◽  
Atomic Oxygen ◽  
Ultraviolet Spectrum ◽  
Upper Atmosphere

Emission features from ionized carbon dioxide and carbon monoxide were measured in the 1900- to 4300-Å spectral region. The Lyman-α 1216-Å line of atomic hydrogen and the 1304-, 1356-, and 2972-Å lines of atomic oxygen were observed.

Effect of temperature, oxidant and catalyst loading on the performance of direct formic acid fuel cell

2005 ◽  
Vol 22 (5) ◽  
pp. 661-665 ◽  
Author(s):  
Jeong Soo Kim ◽  
Jae Keun Yu ◽  
Hyo Song Lee ◽  
Jin Yong Kim ◽  
Young Chun Kim ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Formic Acid ◽  
Effect Of Temperature ◽  
Catalyst Loading
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