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Investigating the photodissociation of H2O2 using frequency modulation laser absorption spectroscopy to monitor radical products

Journal Article · · Chemical Physics Letters
 [1];  [2];  [3];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Division of Chemistry
  2. Stony Brook Univ., NY (United States). Department of Chemistry
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Division of Chemistry; Stony Brook Univ., NY (United States). Department of Chemistry

In this study, the photodissociation of H2O2 dilute in argon at 193 nm has been investigated using near infrared frequency modulation laser absorption spectroscopy on selected rotational lines of the OH vibrational overtone bands between 6500 and 7100 cm-1 to detect the OH and HO2 radical products with the same laser. Sequential OH and HO2 time-dependent profiles have been measured at room temperature and total pressures ranging from 3 to 56 Torr. Kinetic analysis gives the product distribution following H2O2 photolysis of (82±1) % OH and (18±1)% HO2 under the present conditions, in excellent agreement with previously reported measurements.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
SC0012704
OSTI ID:
1473654
Alternate ID(s):
OSTI ID: 23115471
Report Number(s):
BNL--209064-2018-JAAM
Journal Information:
Chemical Physics Letters, Journal Name: Chemical Physics Letters Journal Issue: C Vol. 711; ISSN 0009-2614
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (1)

Kinetic study of the OH + ethylene reaction using frequency‐modulated laser absorption spectroscopy journal April 2019

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