کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9876350 | 1533549 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Radiolysis of silver ion solutions in ethylene glycol: solvated electron and radical scavenging yields
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In contrast, the γ-radiolysis reduction yield of Ag+ into clusters is dose-dependent, changing from Gi(Agn)=(2.5±0.5)Ã10â7 mol Jâ1 at low dose to Gmax(Agn)=(7.5±0.5)Ã10â7 mol Jâ1 at higher doses, when clusters accumulate. Silver cations adsorbed on clusters are able to scavenge the ethylene glycol radicals, which also contribute to their reduction for a part of Grad=(5.8±0.5)Ã10â7 mol Jâ1. Considering the different ways the reducing radicals can be produced, it is concluded that they originate from the electron-cation recombination and from the cation-ethylene glycol reaction, but that the dissociation of excited states is a negligible path. The formation mechanisms of the radicals and the rate constants in ethylene glycol are compared with those in water and methanol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 72, Issues 2â3, February 2005, Pages 111-118
Journal: Radiation Physics and Chemistry - Volume 72, Issues 2â3, February 2005, Pages 111-118
نویسندگان
Behrouz Soroushian, Isabelle Lampre, Jacqueline Belloni, Mehran Mostafavi,