کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
194197 | 459785 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of the interlayer anions on the electrochemical performance of layered double hydroxide electrode materials
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Both high energy density and high power density are vitally required for new applications such as electric vehicles. Here we present a comparison of two well-crystallised layered double hydroxides, [Ni4Al(OH)10]OH and [Ni4Al(OH)10]NO3, which shows that the former can maintain a better discharge capacity, 294–299 mAh g−1, than the latter, 233–287 mAh g−1 at a current density of 2000 mA g−1 within about 300 cycles, although both electrodes deliver a similar capacity of 326 mAh g−1 at 200 mA g−1 initially. It is believed that both the more watery interlayer space in [Ni4Al(OH)10]OH than in [Ni4Al(OH)10]NO3 and the morphologic changes induced by anion exchange of NO3− by OH− during electrochemical cycles play key roles in their behaviour.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 54, Issue 2, 30 December 2008, Pages 671–676
Journal: Electrochimica Acta - Volume 54, Issue 2, 30 December 2008, Pages 671–676
نویسندگان
Lixu Lei, Meng Hu, Xiaorui Gao, Yueming Sun,