کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1613697 | 1516315 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A facile microwave-assisted route to Co(OH)2 and Co3O4 nanosheet for Li-ion battery
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A facile microwave-assisted synthetic route has been successfully developed for preparing hexagonal Co(OH)2 nanosheets with average width of 2 μm and thickness of 100 nm. Co(OH)2 can further convert to porous Co3O4 nanosheets via thermal decomposition. Their phases, structures and morphologies were investigated by X-ray diffraction (XRD), atomic force microscopy (AFM), and transmission electron microscopy (TEM). Both Co(OH)2 and Co3O4 nanosheets can serve as potential candidates for anodes of Li-ion battery. The electrochemical study revealed that Co(OH)2 and Co3O4 nanosheets delivered a reversible capacity of 600 and 700 mA h gâ1 after 40 cycles, respectively. Cyclic voltammetry (CV) curves also confirmed the relative stability of the as-synthesized electrode materials. This effective microwave-assisted route may be a promising approach for preparing other transition metal hydroxide/oxides for energy applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 578, 25 November 2013, Pages 349-354
Journal: Journal of Alloys and Compounds - Volume 578, 25 November 2013, Pages 349-354
نویسندگان
Gen Chen, Engang Fu, Meng Zhou, Yun Xu, Ling Fei, Shuguang Deng, Vimal Chaitanya, Yongqiang Wang, Hongmei Luo,