کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5462552 | 1517177 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Porous TiO2/Fe2O3 nanoplate composites prepared by de-alloying method for Li-ion batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Porous TiO2/Fe2O3 nanoplate composites prepared by de-alloying method for Li-ion batteries Porous TiO2/Fe2O3 nanoplate composites prepared by de-alloying method for Li-ion batteries](/preview/png/5462552.png)
چکیده انگلیسی
TiO2 anode presents a stable cycling performance but relatively low theoretical capacity, which has hindered its applications in high-performance Li-ion batteries (LIBs). For improving the Li storage properties, novel TiO2/Fe2O3 composite with a porous “slice on slice” structure was prepared via a facile de-alloying method. The composite delivers a reversible capacity of 838.8â¯mAhâ¯gâ1 after 400 cycles at a current density of 200â¯mAâ¯gâ1 and maintaining a discharge capacity of 339â¯mAhâ¯gâ1 even at 2â¯Aâ¯gâ1. The improved Li storage property could be ascribed to the synergistic effects of the two active materials. Especially, the reduction products of Fe0 at the interface between TiO2 and Fe2O3 can facilitate the reversibility of reactions and further result in a high reversible capacity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 211, 15 January 2018, Pages 254-257
Journal: Materials Letters - Volume 211, 15 January 2018, Pages 254-257
نویسندگان
Weimin Zhao, Pengyang Fei, Xiaomin Zhang, Yongguang Zhang, Chunling Qin, Zhifeng Wang,