کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1605164 | 1516205 | 2016 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave synthesis of nitrogen-doped mesoporous carbon/nickel-cobalt hydroxide microspheres for high-performance supercapacitors
ترجمه فارسی عنوان
سنتز مایکروویو میکروسپرسهای هیدروکسید نیکل کبالت مزوزوپور نیتروژن و کبالت برای مخازن با عملکرد بالا
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
A novel microsphere-like nitrogen-doped mesoporous carbon/nickel-cobalt layered double hydroxide (NMC/NiCo-LDHs-M) composites were successfully synthesized for the first time via a facile and cost-effective microwave method. The NMC/NiCo-LDHs-M electrode displays outstanding pseudocapacitance performances, including a high specific capacitance (2498Â FÂ gâ1 at 1Â AÂ gâ1), excellent rate capability and good charge-discharge stability, owing to the large surface area, appropriate pore size, rich mesoporous volume, low reaction resistance and high nitrogen amount. Moreover, an asymmetric supercapacitor using NMC/NiCo-LDHs-M as positive materials and NMC as negative materials was assembled to further investigate the electrochemical performances of NMC/NiCo-LDHs-M, which exhibited a high specific capacitance of 272.6Â FÂ gâ1 at 1Â AÂ gâ1 and outstanding electrochemical capacitance retention of 87.2% of initial capacitance after 10,000 cycles. These results indicated that the NMC/NiCo-LDHs-M microspheres were promising materials for high-performance supercapacitors and the microwave method was a potential approach for the design and preparation of diverse supercapacitor materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 689, 25 December 2016, Pages 489-499
Journal: Journal of Alloys and Compounds - Volume 689, 25 December 2016, Pages 489-499
نویسندگان
Juan Xu, Zhengwei Ju, Jianyu Cao, Wenchang Wang, Cheng Wang, Zhidong Chen,