کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4766828 | 1424114 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rational construction the composite of graphene and hierarchical structure assembled by Fe2O3 nanosheets for lithium storage
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Taking the advantage of hierarchical nanostructures into consideration, herein a facile and template free approach to achieve hierarchical microspheres assembled from the α-Fe2O3 nanosheet was formulated. The followed freeze-drying treatment is employed to realize the construction of nanostructured Fe2O3/graphene composite. The unique hierarchical structure of α-Fe2O3 combined with the flexible graphene layer not only effectively buffer the volume expansion during the cycling process, but also promote the transport of lithium ion and electron through three-dimensional networks when being assessed for lithium ion battery. The as-obtained composite exhibits significantly enhanced cycling stability (1850 mA h gâ1 after 190 cycles at the current of 300 mA gâ1) and superior rate performance (around 520 mA h gâ1 for the current of 5000 mA gâ1). The obtained-results illustrate that the rational designing of the nanostructured composite can result in the fast lithium insertion/de-insertion in lithium ion batteries which mimic merits seen in high-power electrochemical capacitors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 243, 20 July 2017, Pages 18-25
Journal: Electrochimica Acta - Volume 243, 20 July 2017, Pages 18-25
نویسندگان
Yongjie Zhao, Ximei Zhai, Dong Yan, Caihua Ding, Nan Wu, Dezhi Su, Yuzhen Zhao, Heping Zhou, Xiuchen Zhao, Jingbo Li, Haibo Jin,