کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6612507 | 459583 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A layer-by-layer deposition strategy of fabricating NiO@rGO composites for advanced electrochemical capacitors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Although graphene oxide (GO) can be well dispersed in aqueous solution, direct reduction of GO in solution usually results in irreversibly precipitated agglomerates due to strong Ï-Ï interactions. Such a problem could be avoided by preparing layered graphene-based materials using an electrostatic spray deposition (ESD) technology. A composite film consisting of NiO nanograins@reduced graphene oxide nanosheets (NiO@rGO) with layered structure was realized by a facile one step binder-free ESD approach. It was deposited directly onto the nickel foam and showed excellent electrochemical capacitor properties, about 881Â FÂ gâ1 at a current density of 0.5Â AÂ gâ1 and 667Â FÂ gâ1 at 50Â AÂ gâ1 with an excellent cycling ability. Furthermore, this technique opens a new access to the preparation of layered graphene based composites with novel structures and properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 152, 10 January 2015, Pages 378-382
Journal: Electrochimica Acta - Volume 152, 10 January 2015, Pages 378-382
نویسندگان
Haiming Zhang, Di Guo, Jian Zhu, Qiuhong Li, Libao Chen, Taihong Wang,