کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7899597 | 1510350 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of B2O3 content on structure-function of vanadiumâlithium-borate glasses probed by synchrotron-based XAS and vibrating sample magnetrometry technique
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, vanadiumâlithium-borate glasses, 0.5V2O5-0.5(Li2O-xB2O3) with xâ¯=â¯1.0, 2.0 and 3.0, respectively, were prepared by conventional melt-quench technique. The glass samples were characterized by X-ray diffraction, scanning electron microscopy, X-ray absorption spectroscopy, X-ray photoelectron spectroscopy, UV-Visible Spectroscopy and vibrating sample magnetrometry. X-ray absorption near-edge spectra at the V K-edge confirmed the presence of the mixing of V4+ and V5+ oxidation states and X-ray photoelectron spectroscopy were used to quantify and reveal the amount of V4+ and V5+ in the glass samples with approximately a ratio of 1:4 for V4+:V5+. The paramagnetic behavior were found for the glass samples with xâ¯=â¯1.0 and 2.0 due to the presence of V4+. However, an influence of B2O3 content clearly affected to the glass sample with xâ¯=â¯3.0 resulting to a diamagnetic nature of this glass composition. The local structural information around V atoms in all glass samples were addressed using extended X-ray absorption fine structure technique with a mean oxygen coordinated network of 3.50(1). The notable properties of these glasses can be used and applied in the energy storage applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 497, 1 October 2018, Pages 56-62
Journal: Journal of Non-Crystalline Solids - Volume 497, 1 October 2018, Pages 56-62
نویسندگان
Nattapol Laorodphan, Pinit Kidkhunthod, Jessada Khajonrit, Amornthep Montreeuppathum, Narong Chanlek, Supree Pinitsoontorn, Santi Maensiri,