کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1630421 | 1516666 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Clâ induced synthesis of submicron cubic copper particles in solution
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Clâ induced synthesis of submicron cubic copper particles in solution Clâ induced synthesis of submicron cubic copper particles in solution](/preview/png/1630421.png)
چکیده انگلیسی
Submicron copper microcrystal was synthesized by reducing Cu2O with hydrazine hydrate as reducer in aqueous solution, and was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The shapes of copper microcrystal depend on additives. Cubic copper particles were observed when the inorganic salt containing Clâ, such as NH4Cl, NaCl, or KCl, was added into the reaction system. By combined use of NH4Cl and polyvinylpyrrolidone (PVP), the proportion of cubic copper particle number exceeded 90%, and the particle size is 0.1â¼0.5 μm. While other inorganic salt without Clâ, such as Na2SO4 or (NH4)2SO4, had little effect on the shapes of the copper particles. The growth mechanism of metallic copper crystal in aqueous solution was analyzed. It is suggested that the formation of cubic copper crystals is ascribed to the selective adsorption of Clâ on copper crystal (100) faces.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material - Volume 15, Issue 5, October 2008, Pages 659-664
Journal: Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material - Volume 15, Issue 5, October 2008, Pages 659-664
نویسندگان
Minyi Hu, Kanggen Zhou, Chongguo Wang, Rui Xu,