| 二甲基羟胺水溶液的脉冲辐解研究 |
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| 引用本文： | 陈辉,何辉,叶国安,付海英,吴国忠. 二甲基羟胺水溶液的脉冲辐解研究[J]. 辐射研究与辐射工艺学报, 2010, 28(3): 138-143 |
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| 作者姓名： | 陈辉 何辉 叶国安 付海英 吴国忠 |
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| 作者单位： | 中国原子能科学研究院,北京,102413;中国科学院上海应用物理研究所,上海,201800 |
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| 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(CH3)2NO·自由基,测得速率常数为(4.5±0.3)×109mol-1·L·s-1;eaq-与DMHAN反应生成(CH3)2N·自由基,测得速率常数为(1.3±0.04)×109mol-1·L·s-1。
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| 关 键 词： | 二甲基羟胺 脉冲辐解 瞬态吸收光谱 自由基 |
Pulse radiolysis of aqueous N, N-Dimethylhydroxylamine solutions |
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| CHEN Hui,HE Hui,YE Guoan,FU Haiying,WU Guozhong. Pulse radiolysis of aqueous N, N-Dimethylhydroxylamine solutions[J]. Journal of Radiation Research and Radiation Processing, 2010, 28(3): 138-143 |
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| Authors: | CHEN Hui HE Hui YE Guoan FU Haiying WU Guozhong |
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| Affiliation: | 2 (Institute of Radiochemistry, China Institute of Atomic Energy, Beijing 102413, China) 2(Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China) |
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| 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 （CHa）2NO radical was determined to be （4.5±0.3）×10^9mol-1.L·s-1 meanwhile the rate constant for reaction of eaq＂ and N, N-Dimethylhyroxylamine to form （CH3）2N- radical was determined to be （1.3±0.04）×10^9mol-1.L·s-1. |
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| Keywords: | N N-Dimethylhyroxylamine Pulse radiolysis Transient absorption spectrum Free radical |
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