scholarly journals SURFACE CHEMKIN-III: A Fortran package for analyzing heterogeneous chemical kinetics at a solid-surface - gas-phase interface

1996 ◽  
Author(s):  
M.E. Coltrin ◽  
R.J. Kee ◽  
F.M. Rupley ◽  
E. Meeks
Keyword(s):  
Gas Phase ◽  
Chemical Kinetics ◽  
Solid Surface ◽  
Phase Interface ◽  
Heterogeneous Chemical

scholarly journals The heterogeneous chemical kinetics of N<sub>2</sub>O<sub>5</sub> on CaCO<sub>3</sub> and other atmospheric mineral dust surrogates

2005 ◽  
Vol 5 (5) ◽  
pp. 10369-10408
Author(s):  
F. Karagulian ◽  
C. Santschi ◽  
M. J. Rossi
Keyword(s):  
Gas Phase ◽  
Chemical Kinetics ◽  
Mineral Dust ◽  
Saharan Dust ◽  
Molecular Flow ◽  
Flow Conditions ◽  
Heterogeneous Chemical ◽  
Powder Samples ◽  
Kinetics Of ◽  
Hydrolysis Of

Abstract. Uptake experiments of N2O5 on several mineral dust powder samples were carried out under continuous molecular flow conditions at 298±2 K. At [N2O5]0=(4.0±1.0)×1011 cm−3 we have found γss values ranging from (3.5±1.1)×10−2 for CaCO3 to (0.20±0.05) for Saharan Dust with γss decreasing as [N2O5]0 increased. We have observed delayed production of HNO3 upon uptake of N2O5 for every investigated sample owing to hydrolysis of N2O5 with surface-adsorbed H2O. At high and low [N2O5] Arizona Test Dust and Kaolinite turned out to be the samples to produce the largest amount of gas phase HNO3 with respect to N2O5 taken up. In contrast, the yield of HNO3 for Saharan Dust and CaCO3 are lower. On CaCO3 the disappearance of N2O5 was also accompanied by the formation of CO2. For CaCO3 sample masses ranging from 0.33 to 2.0 g, the yield of CO2 was approximately 42–50% with respect to the total number of N2O5 molecules taken up. The reaction of N2O5 with mineral dust and the subsequent production of gas phase HNO3 leads to a decrease in [NOx] which may have a significant effect on global ozone.

GAS-PHASE AND HETEROGENEOUS CHEMICAL KINETICS OF THE TROPOSPHERE AND STRATOSPHERE

1996 ◽  
Vol 47 (1) ◽  
pp. 327-367 ◽  
Author(s):  
Mario J. Molina ◽  
Luisa T. Molina ◽  
Charles E. Kolb
Keyword(s):  
Gas Phase ◽  
Chemical Kinetics ◽  
Heterogeneous Chemical ◽  
Kinetics Of

Time-resolved IR chemiluminescence in gas-phase chemical kinetics

1999 ◽  
Vol 68 (3) ◽  
pp. 171-181 ◽  
Author(s):  
Evgenii N Chesnokov ◽  
Viktor N Panfilov
Keyword(s):  
Gas Phase ◽  
Chemical Kinetics ◽  
Time Resolved ◽  
Phase Chemical

Gas phase chemical kinetics of sodium in the upper atmosphere

Nature ◽  
1976 ◽  
Vol 263 (5577) ◽  
pp. 488-490 ◽  
Author(s):  
C. E. KOLB ◽  
J. B. ELGIN
Keyword(s):  
Gas Phase ◽  
Chemical Kinetics ◽  
Upper Atmosphere ◽  
Kinetics Of ◽  
Phase Chemical
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