Pulse radiolysis of aqueous N, N-Dimethylhydroxylamine solutions

CHEN Hui; HE Hui; YE Guoan; FU Haiying; WU Guozhong

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Pulse radiolysis of aqueous N, N-Dimethylhydroxylamine solutions

更新时间：2023-03-30

- Pulse radiolysis of aqueous N, N-Dimethylhydroxylamine solutions
- Journal of Radiation Research and Radiation Processing Vol. 28, Issue 3, Pages: 138-143(2010)
- 作者机构：
  
  1.中国原子能科学研究院　北京　102413
  2.中国科学院上海应用物理研究所　上海　201800
- 作者简介：
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CHEN Hui, HE Hui, YE Guoan, et al. Pulse radiolysis of aqueous N, N-Dimethylhydroxylamine solutions. [J]. Journal of Radiation Research and Radiation Processing 28(3):138-143(2010)
DOI：

CHEN Hui, HE Hui, YE Guoan, et al. Pulse radiolysis of aqueous N, N-Dimethylhydroxylamine solutions. [J]. Journal of Radiation Research and Radiation Processing 28(3):138-143(2010) DOI：

摘要

利用脉冲电子束进行二甲基羟胺(DMHAN)水溶液的脉冲辐解研究，对其瞬态光谱中的主要吸收峰作了归属，并初步考察了这些瞬态物种的生长、衰减等行为。研究结果表明，·OH与DMHAN反应生成(CH,3,),2,NO·自由基，测得速率常数为(4.5±0.3)×10,9, mol,-1,·L·s,-1,；e,aq,-,与DMHAN反应生成(CH,3,),2,N·自由基，测得速率常数为(1.3±0.04)×10,9, mol,-1,·L·s,-1,。

Abstract

Pulse radiolysis of aqueous solution containing N-Dimethylhyroxylamine was studied under different conditions. The transient species with characteristic maximum absorption were identified and the build-up/decay time-resolved curves were recorded. The rate constant for reaction of ·OH radical and N, N-Dimethylhyroxylamine to form (CH,3,),2,NO,·, radical was determined to be (4.5±0.3)×10,9, mol,-1,·L·s,-1, meanwhile the rate constant for reaction of e,aq,-, and N, N-Dimethylhyroxylamine to form (CH,3,),2,N· radical was determined to be (1.3±0.04)×10,9, mol,-1,·L·s,-1,.

关键词

二甲基羟胺脉冲辐解瞬态吸收光谱自由基

Keywords

N;N-DimethylhyroxylaminePulse radiolysisTransient absorption spectrumFree radical

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