کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5351602 | 1503662 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Generation of nanoparticles of bronze and brass by laser ablation in liquid
ترجمه فارسی عنوان
تولید نانوذرات برنز و برنج با استفاده از لیزر در مایع
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
Nanoparticles of brass and bronze are generated by ablation of corresponding bulk targets in liquid ethanol. The experiments were performed using three pulsed lasers with different pulse duration: ytterbium fiber laser (80Â ns), a Neodymium:YAG laser (10Â ps), and femtosecond Ti:sapphire laser (200Â fs). The generated nanoparticles (NPs) are characterized by UV-vis absorption spectroscopy, X-ray diffractometry, Raman scattering, and Transmission Electron Microscopy. The size of generated NPs lies in the range 10-25Â nm depending on the laser source. The X-ray diffractometry reveals the change of phase composition of brass NPs compared to the initial target in case of ablation with 80Â ns laser source, while with 10Â ps laser pulses this effect is less pronounced. Brass NPs generated with pico- and femtosecond laser radiation show the plasmon resonance in the vicinity of 560Â nm and no plasmon peak for NPs generated with longer laser pulses. Raman analysis shows the presence of Cu2O in generated NPs. The stability of generated NPs of both brass and bronze to oxidation is compared to that of Cu NPs generated in similar experimental conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 302, 30 May 2014, Pages 79-82
Journal: Applied Surface Science - Volume 302, 30 May 2014, Pages 79-82
نویسندگان
I.A. Sukhov, G.A. Shafeev, V.V. Voronov, M. Sygletou, E. Stratakis, C. Fotakis,