کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1289434 | 973297 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Capacitance decay of nanoporous nickel hydroxide
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Capacitance decay of nanoporous nickel hydroxide Capacitance decay of nanoporous nickel hydroxide](/preview/png/1289434.png)
چکیده انگلیسی
Nanoporous nickel hydroxide Ni(OH)2 coated on nickel foam by using a chemical bath deposition method shows a high specific capacitance of 2200 F g−1 at a discharging current density of 1 Ag−1. After 500 charge–discharge cycles, the specific capacitance is stabilized at 1470 Fg−1, and there is only a 5% fall in specific capacitance during the following 1500 cycles. The relationship between the capacitance decay and changes in the microstructure and morphology of nanoporous Ni(OH)2 is investigated. The results show that phase transformation and the growth of particle/crystal size, rather than the formerly proposed flaking off of Ni(OH)2, are the major factors contributing to the capacitance decay.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 195, Issue 19, 1 October 2010, Pages 6977–6981
Journal: Journal of Power Sources - Volume 195, Issue 19, 1 October 2010, Pages 6977–6981
نویسندگان
Guangxia Hu, Chunxiang Li, Hao Gong,