کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5466219 | 1517986 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nanostructuring of SnO2 via solution-based and hard template assisted method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Polycrystalline SnO2 1D nanostructures with diameters of 150-200Â nm and consisting of uniformly sized single-crystallites of ~Â 10Â nm in size were produced via aqueous sol-gel and hard template assisted methods. Stable sols were prepared from tin oxalate precursor, citric acid and H2O2. Solution chemistry and parameters influencing the stability of the sol and morphological structure of the resulting materials are addressed. Morphological and structural characterization revealed uniform and porous structure of the nanostructured SnO2. Hollow nanotubular structures were produced from solutions of lower concentration. Results of XPS analysis revealed that a sub-stoichiometric phase with surface composition of SnO1.8 was obtained indicating the formation of oxygen vacancies. The optical properties were investigated and optical band gap energy for the powder samples was estimated to be 3.61Â eV. An environmentally friendly aqueous sol-gel route developed to prepare homogeneous nanostructures of 1D SnO2 will enable facile fabrication of various oxide based nanostructured materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 626, 31 March 2017, Pages 38-45
Journal: Thin Solid Films - Volume 626, 31 March 2017, Pages 38-45
نویسندگان
L. Alinauskas, E. Brooke, A. Regoutz, A. Katelnikovas, R. Raudonis, S. Yitzchaik, D.J. Payne, E. Garskaite,