کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5149646 | 1497890 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
CuSbS2 as a negative electrode material for sodium ion batteries
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: CuSbS2 as a negative electrode material for sodium ion batteries CuSbS2 as a negative electrode material for sodium ion batteries](/preview/png/5149646.png)
چکیده انگلیسی
CuSbS2 was tested as a negative electrode material for sodium-ion batteries. The material synthesized by ball milling offers a specific charge of 730 mAh gâ1, close to the theoretical value (751 mAh gâ1), over a few cycles. The reaction mechanism was investigated by means of operando X-ray diffraction, 121Sb Mössbauer spectroscopy, and Cu K-edge X-ray absorption spectroscopy. These studies reveal a sodiation mechanism that involves an original conversion reaction in two steps, through the formation of a ternary phase, CuSb(1âx)S(2ây), as well as a NaxS alloy and Sb, followed by an alloying reaction involving the previously formed Sb. The desodiation process ends with the reformation of the ternary phase, CuSb(1âxâ²)S(2âyâ²), deficient in Sb and S; this phase is responsible for the good reversibility observed upon cycling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 342, 28 February 2017, Pages 616-622
Journal: Journal of Power Sources - Volume 342, 28 February 2017, Pages 616-622
نویسندگان
C. Marino, T. Block, R. Pöttgen, C. Villevieille,