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

被引：3

作者：

Lockhart, James P. A. ^{[1
]}

Gross, Eisen C. ^{[2
]}

Sears, Trevor J. ^{[1
,2
]}

Hall, Gregory E. ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Div Chem, Upton, NY 11973 USA

[2] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA

来源：

CHEMICAL PHYSICS LETTERS | 2018年 / 711卷

关键词：

PLUS O-2 REACTIONS; ATMOSPHERIC CHEMISTRY; HYDROGEN-PEROXIDE; QUANTUM YIELDS; ORGANIC HYDROPEROXIDE; FM SPECTROSCOPY; LINE STRENGTHS; GROUND-STATE; 2-NU(1) BAND; KINETIC-DATA;

D O I：

10.1016/j.cplett.2018.09.004

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：148 / 151

页数：4

共 42 条

[1] Experimental and theoretical investigation of the reaction of RO2 radicals with OH radicals: Dependence of the HO2 yield on the size of the alkyl group [J].

Assaf, Emmanuel ;

Schoemaecker, Coralie ;

Vereecken, Luc ;

Fittschen, Christa .

INTERNATIONAL JOURNAL OF CHEMICAL KINETICS, 2018, 50 (09) :670-680

[2] Absorption spectrum and absorption cross sections of the 2ν1 band of HO2 between 20 and 760 Torr air in the range 6636 and 6639 cm-1 [J].

Assaf, Emmanuel ;

Liu, Lu ;

Schoemaecker, Coralie ;

Fittschen, Christa .

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 2018, 211 :107-114

[3] Evaluated kinetic, photochemical and heterogeneous data for atmospheric chemistry .5. IUPAC Subcommittee on Gas Kinetic Data Evaluation for Atmospheric Chemistry [J].

Atkinson, R ;

Baulch, DL ;

Cox, RA ;

Hampson, RF ;

Kerr, JA ;

Rossi, MJ ;

Troe, J .

JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1997, 26 (03) :521-1011

[4] EVALUATED KINETIC DATA FOR COMBUSTION MODELING [J].

BAULCH, DL ;

COBOS, CJ ;

COX, RA ;

ESSER, C ;

FRANK, P ;

JUST, T ;

KERR, JA ;

PILLING, MJ ;

TROE, J ;

WALKER, RW ;

WARNATZ, J .

JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1992, 21 (03) :411-734

[5] FREQUENCY-MODULATION (FM) SPECTROSCOPY - THEORY OF LINESHAPES AND SIGNAL-TO-NOISE ANALYSIS [J].

BJORKLUND, GC ;

LEVENSON, MD ;

LENTH, W ;

ORTIZ, C .

APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1983, 32 (03) :145-152

[6] Gas Phase Oxidation of Monoethanolamine (MEA) with OH Radical and Ozone: Kinetics, Products, and Particles [J].

Borduas, Nadine ;

Abbatt, Jonathan P. D. ;

Murphy, Jennifer G. .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2013, 47 (12) :6377-6383

[7] Line strengths of rovibrational and rotational transitions in the X2Π ground state of OH [J].

Brooke, James S. A. ;

Bernath, Peter F. ;

Western, Colin M. ;

Sneden, Christopher ;

Afsar, Melike ;

Li, Gang ;

Gordon, Iouli E. .

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 2016, 168 :142-157

[8] The Essential Role for Laboratory Studies in Atmospheric Chemistry [J].

Burkholder, James B. ;

Abbatt, Jonathan P. D. ;

Barnes, Ian ;

Roberts, James M. ;

Melamed, Megan L. ;

Ammann, Markus ;

Bertram, Allan K. ;

Cappa, Christopher D. ;

Carlton, Annmarie G. ;

Carpenter, Lucy J. ;

Crowley, John N. ;

Dubowski, Yael ;

Georges, Christian ;

Heard, Dwayne E. ;

Herrmann, Hartmut ;

Keutsch, Frank N. ;

Kroll, Jesse H. ;

McNeill, V. Faye ;

Nga Lee Ng ;

Nizkorodov, Sergey A. ;

Orlando, John J. ;

Percival, Carl J. ;

Picquet-Varrault, Benedicte ;

Rudich, Yinon ;

Seakins, Paul W. ;

Surratt, Jason D. ;

Tanimoto, Hiroshi ;

Thornton, Joel A. ;

Tong, Zhu ;

Tyndall, Geoffrey S. ;

Wahner, Andreas ;

Weschler, Charles J. ;

Wilson, Kevin R. ;

Ziemann, Paul J. .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2017, 51 (05) :2519-2528

[9] Direct measurement of •OH and HO2• formation in •R + O2 reactions of cyclohexane and tetrahydropyran [J].

Chen, Ming-Wei ;

Rotavera, Brandon ;

Chao, Wen ;

Zador, Judit ;

Taatjes, Craig A. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2018, 20 (16) :10815-10825

[10] Infrared frequency-modulation probing of product formation in alkyl plus O2 reactions:: I.: The reaction of C2H5 with O2 between 295 and 698 K [J].

Clifford, EP ;

Farrell, JT ;

DeSain, JD ;

Taatjes, CA .

JOURNAL OF PHYSICAL CHEMISTRY A, 2000, 104 (49) :11549-11560

← 1 2 3 4 5 →