کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7725150 | 1497836 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Selective vacuum filtration-induced microelectrode patterning on paper for high-performance planar microsupercapacitor
ترجمه فارسی عنوان
الگوی میکروالکترودهای ناشی از فیلترهای انتخابی بر روی کاغذ برای کارآیی بالا
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
فیلتراسیون خلاء انتخابی، هیدروژل گرافن، میکروسورکرتاتور پلارک، تراشه کاغذ،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
Graphene-based microsupercapacitors (mSCs) as important micro-power sources for miniaturized electronic devices have been a fascinating research topic. However, the large specific surface area of graphene is not fully exhibited due to the Ï-Ï stacking of graphene nanosheet in these graphene-based mSCs system fabricated by previously reported methods. Here, we propose a new method to fabricate the compact, flexible and all-solid-state graphene hydrogel-based mSC (GH-mSC) by combing paper chip with selective vacuum filtration, which allows the fabrication of mSCs with different sizes and shapes. The stack capacitance value of GH-mSC is 2.51â¯Fâ¯cmâ3 and the CV curve still keep quasi-rectangular even at a very high scan rate of 50000â¯mVâ¯sâ1. The GH-mSC delivers acceptable energy densities of 0.223â¯mWâ¯hâ¯cmâ3 and power densities of 0.024â¯Wâ¯cmâ3, which is better than electrolytic capacitor. Further, the GH-mSCs exhibit superior long-time cycling stability and good flexibility. More importantly, the mSC on paper chips allows easy scaling up of capacitance and output voltage by simply fabricating several mSCs on a plane or both sides of a paper and then connecting in parallel or series. These characteristics suggest that GH-mSCs are promising as power sources.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 396, 31 August 2018, Pages 632-638
Journal: Journal of Power Sources - Volume 396, 31 August 2018, Pages 632-638
نویسندگان
Yue Dong, Lu Wang, Lin Ban, Wei Du, Xiaojun Feng, Peng Chen, Fei Xiao, Shuai Wang, Bi-Feng Liu,