کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5448042 | 1511769 | 2017 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Facile synthesis of ammonium vanadate nanofibers by using reflux in aqueous V2O5 solution with ammonium persulfate
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Facile synthesis of ammonium vanadate nanofibers by using reflux in aqueous V2O5 solution with ammonium persulfate Facile synthesis of ammonium vanadate nanofibers by using reflux in aqueous V2O5 solution with ammonium persulfate](/preview/png/5448042.png)
چکیده انگلیسی
Ammonium vanadate nanofibers were synthesized by simple reflux method in aqueous V2O5 solution with ammonium persulfate without relying on surfactants, catalysts, harmful solvents and autoclave. The degree of intercalation by cationic ammonium ions into the crystal structure of vanadium oxide along with its change in chemical composition were analyzed by thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), infrared spectroscopy (IR). The morphological changes toward nanofiber structure, having diameter of 20-30 nm and a few μm length, were investigated using transmission electron microscopy (TEM), scanning electron microscopy (SEM) and X-ray diffraction (XRD). The influences of synthetic conditions, such as reaction time and concentration of sulfate (SO42â), on the crystal structures and morphologies of the resulting products have investigated. As a result, the ammonium vanadate nanofiber was formed in a short reaction time through a simple reflux method and yielded comparable electrical conductivity 1.47 Ã 10â2 S/cm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 194, 15 June 2017, Pages 313-321
Journal: Materials Chemistry and Physics - Volume 194, 15 June 2017, Pages 313-321
نویسندگان
Se Hun Lee, Jun Mo Koo, Seong Geun Oh, Seung Soon Im,