Study of the transient "free" OH radical generated in H2O-H2O2 mixtures by stimulated Raman scattering

被引：12

作者：

Li, Fangfang ^{[1
]}

Ma, Zhiwei ^{[1
]}

Wang, Shenghan ^{[1
]}

Li, Tianyu ^{[1
]}

Sun, Chenglin ^{[1
]}

Li, Zhanlong ^{[2
]}

Men, Zhiwei ^{[1
]}

机构：

[1] Jilin Univ, Coll Phys, Coherent Light & Atom & Mol Spect Lab, Changchun 130012, Peoples R China

[2] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2017年 / 175卷

基金：

中国国家自然科学基金;

关键词：

Free" OH radical; H2O-H2O2; Stimulated Raman scattering; Laser-induced breakdown; INDUCED PLASMA GENERATION; HYDROGEN-PEROXIDE; WATER CLUSTERS; RESONANCE ENHANCEMENT; INFRARED-SPECTRUM; AB-INITIO; LIQUID; IONIZATION; DISSOCIATION; STABILITY;

D O I：

10.1016/j.saa.2016.12.026

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Forward and backward stimulated Raman scattering (SRS) were studied in the H2O2-H2O mixtures by a strong excitation laser with 532 nm. Only the backward SRS (BSRS) of the H2O2-H2O system shows an unexpected SRS shoulder peak at around 3600 cm(-1), which is similar to the characteristic peak of "free" OH radical. The generation of the "free" OH radical is mainly attributed to the dissociation of hydrogen peroxide (HP) molecules. Simultaneously, the ionization of HP-water clusters generates a part of "free" OH radical under the Laser-induced breakdown (LIB). The interaction of water and HP is also discussed. (C) 2016 Published by Elsevier B.V.

引用

页码：246 / 249

页数：4

共 38 条

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