Reaction of H• with H2O2 as observed by optical absorption of perhydroxyl radicals or aliphatic alcohol radicals and of •OH with H2O2.: A pulse radiolysis study

被引：20
|
作者：
Alam, MS
Kelm, M
Rao, BSM
Janata, E
机构：
[1] Hahn Meitner Inst Berlin GmbH, Bereich Solarenergieforsch, D-14109 Berlin, Germany
[2] Forschungszentrum Karlsruhe, Inst Nukl Entsorgung, D-76021 Karlsruhe, Germany
[3] Univ Pune, Dept Chem, Natl Ctr Free Rad Res, Pune, Maharashtra, India
来源：
RADIATION PHYSICS AND CHEMISTRY | 2004年 / 71卷 / 06期
关键词：
hydrogen peroxide; hydrogen atom; hydroxyl radical; aliphatic alcohol radicals; rate constants; pulse radiolysis;
D O I：
10.1016/j.radphyschem.2003.11.007
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：
Two new procedures were employed for studying the reaction of hydrogen atoms with hydrogen peroxide. The absorption in the UV-range was observed either for an acidic aqueous solution containing only hydrogen peroxide or for a similar solution but also containing an aliphatic alcohol. From the increase in absorption of various alcohol radicals, a rate constant of 3.5 x 10(7) dm(3) mol(-1) s(-1) was determined. In addition, the rate constant for the reaction of hydroxyl radicals with hydrogen peroxide was determined to be 3.0 x 10(7) dm(3) mol(-1) s(-1). (C) 2003 Elsevier Ltd. All-rights reserved.
引用
收藏
页码：1087 / 1093
页数：7
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