کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1651886 1007632 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and characterization of cuprous sulfide crystals with novel morphology
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Synthesis and characterization of cuprous sulfide crystals with novel morphology
چکیده انگلیسی

Cuprous sulfide (Cu2−xS) crystals in different stoichiometries were synthesized by hydro- and solvo-thermal methods at 125 °C using Na2S2O3 as sulfur source in pure water, mixed solvents of ethylenediamine (en) and water, and pure en, respectively. The products were characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersion spectrometer (EDS), transmission electron microscope (TEM) and selected area electronic diffraction (SAED). Owing to different sulfur sources, crystal structures and morphologies of cuprous sulfides were different from those developed by some former researchers. Novel twelve-fold symmetrical Cu7S4 single crystals were synthesized at an en/water volume ratio of 3:1, and they were built up by two layers of about 80–100 nm in thickness. Moreover, the possible growth process had been discussed based on the analyses of detailed configuration of the products.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 62, Issue 16, 15 June 2008, Pages 2503–2506
نویسندگان
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