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：21

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

页码：1087 / 1093

页数：7

共 34 条

[1] •OH reactions with aliphatic alcohols:: evaluation of kinetics by direct optical absorption measurement.: A pulse radiolysis study [J].