کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1869959 | 1530951 | 2015 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dissociation of Trinitrotoluene on the Surface of Porous Silicon Under Laser Irradiation
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Dissociation of trinitrotoluene (TNT) sorbed on porous silicon (pSi) surface under UV laser irradiation has been studied. A method based on ion mobility spectrometry (IMS) has been used in this study. Excitation and ionization of TNT molecules has been occurred at atmospheric pressure. A dependence of TNT ion spectrum on standing time of TNT molecules on pSi surface has been demonstrated. The ion type has changed from (TNT-H)Â - to (TNT-NO2)Â - which indicates a slow chemical reaction between pSi surface and TNT molecules. The first step of (TNT-NO2)Â - formation has been found to be a result of laser stimulated surface dissociation and subsequent desorption of a neutral TNT-NO2 fragment. The second step of (TNT-NO2)Â - formation is a capture of an electron emitted from the pSi surface under laser irradiation. The result of this study could be used in the area of explosive detection.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Procedia - Volume 73, 2015, Pages 159-162
Journal: Physics Procedia - Volume 73, 2015, Pages 159-162
نویسندگان
Yury Kuzishchin, Dmitriy Dovzhenko, Igor Martynov, Genadii Kotkovskii, Alexander Chistyakov,