Time-resolved infrared emission studies of CO2 formed by CO oxidation on Pt and Pd

1983 ◽  
Vol 102 (1) ◽  
pp. 37-40 ◽  
Author(s):  
David A. Mantell ◽  
Subbarao B. Ryali ◽  
Gary L. Haller
Keyword(s):  
Co Oxidation ◽  
Infrared Emission ◽  
Time Resolved ◽  
Emission Studies

Time-Resolved Pulsed FT-IR Emission Studies of Photochemical Reactions

1993 ◽  
Vol 47 (9) ◽  
pp. 1438-1445 ◽  
Author(s):  
D. E. Heard ◽  
R. A. Brownsword ◽  
D. G. Weston ◽  
G. Hancock
Keyword(s):  
Plasma Etching ◽  
Infrared Emission ◽  
Photochemical Reactions ◽  
Quantum Yields ◽  
Time Resolved ◽  
Ion Plasma ◽  
Ft Ir ◽  
Ir Emission ◽  
Product Species ◽  
Emission Studies

A time-resolved Fourier transform emission spectrometer, operating in the stop-scan mode, is demonstrated as an inexpensive and versatile instrument for observation of infrared vibrational chemiluminescence. The entire evolution of an emission spectrum is obtained from a single scan of the interferometer, with a spectral and temporal resolution of 2 cm−1 and 10 ns, respectively. Results are presented for a number of radical-radical reactions studied by this technique, where emission from highly excited CO, HF, CO2, and N2O is observed. Measurements include nascent vibrational distributions, quantum yields for branching into different product channels, and bimolecular rate constants for the production and vibrational relaxation of product species. Experiments at low total pressure enable nascent vibrational and rotational distributions to be found for the HF fragment of the CO2 laser photolysis of 1,1-chlorofluoroethylene. In addition, time-resolved spectra of HF, CO, CO2, CF4, and CHF3 are demonstrated for infrared emission observed from a reactive ion plasma etching chamber.

scholarly journals Time-resolved, in situ DRIFTS/EDE/MS studies on alumina supported Rh catalysts: effects of ceriation on the Rh catalysts in the process of CO oxidation

2017 ◽  
Vol 3 (1-2) ◽  
pp. 13-23 ◽  
Author(s):  
Anna B. Kroner ◽  
Mark A. Newton ◽  
Moniek Tromp ◽  
Andrea E. Russell ◽  
Andrew J. Dent ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Time Resolved ◽  
In Situ Drifts

Picosecond time-resolved absorption and emission studies of pyrazolotriazole azomethine dyes

1991 ◽  
Vol 87 (21) ◽  
pp. 3479 ◽  
Author(s):  
Peter Douglas ◽  
Stewart M. Townsend ◽  
Paula J. Booth ◽  
Ben Crystall ◽  
James R. Durrant ◽  
...  
Keyword(s):  
Time Resolved ◽  
Absorption And Emission ◽  
Emission Studies

scholarly journals Time-Resolved Long-Lived Infrared Emission from Bacteriorhodopsin during its Photocycle

2002 ◽  
Vol 83 (3) ◽  
pp. 1589-1594 ◽  
Author(s):  
Jianping Wang ◽  
Mostafa A. El-Sayed
Keyword(s):  
Infrared Emission ◽  
Time Resolved

scholarly journals Defect Characterization in ZnGeP2 by Time -Resolved Photoluminescence

1996 ◽  
Vol 450 ◽  
Author(s):  
N. Dietz ◽  
W. Busse ◽  
H. E. Gumlich ◽  
W. Ruderman ◽  
I. Tsveybak ◽  
...  
Keyword(s):  
Energy Range ◽  
Infrared Emission ◽  
Luminescence Spectra ◽  
Broad Emission Band ◽  
Wide Energy Range ◽  
Time Resolved ◽  
Broad Emission ◽  
Donor Acceptor ◽  
Donor States ◽  
Time Resolved Photoluminescence

AbstractSteady state and time-resolved photoluminescence (PL) investigations on ZnGeP2 crystals grown from the vapor phase by high pressure physical vapor transport (HPVT) and from the melt by gradient freezing (GF) are reported. The luminescence spectra reveal a broad infrared emission with peak position at 1.2 eV that exhibits features of classical donor-acceptor recombination. The hyperbolic decay characteristic over a wide energy range, investigated from 1.2 eV up to 1.5eV, suggest that this broad emission band is related to one energetic recombination center. Higher energetic luminescence structures at 1.6eV and 1.7eV were revealed after annealing of ZnGeP2 crystals in vacuum for a longer period of time. The emission decay behavior in this energy range is characterized by two hyperbolic time constants, viewed as the supercomposition of the decay from the broad emission center peaked at 1.2eV and additional donor-acceptor recombination emissions at 1.6eV and 1.7eV, respectively. ZnGeP2 crystals grown under Ge-deficient conditions by HPVT show an additional emission structure at 1.8 eV with sharp emission fine structures at 1.778 eV related to the presence of additional donor states.

Distribution of Vibrational States of CO2in the Reaction O(1D) + CO2from Time-Resolved Fourier Transform Infrared Emission Spectra

2009 ◽  
Vol 113 (15) ◽  
pp. 3431-3437 ◽  
Author(s):  
Hui-Fen Chen ◽  
Hung-Chu Chiang ◽  
Hiroyuki Matsui ◽  
Soji Tsuchiya ◽  
Yuan-Pern Lee
Keyword(s):  
Fourier Transform ◽  
Emission Spectra ◽  
Fourier Transform Infrared ◽  
Infrared Emission ◽  
Vibrational States ◽  
Time Resolved
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