کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10425082 | 906719 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrothermally synthesized RuO2/Carbon nanofibers composites for use in high-rate supercapacitor electrodes
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Hydrothermally synthesized RuO2/Carbon nanofibers composites for use in high-rate supercapacitor electrodes Hydrothermally synthesized RuO2/Carbon nanofibers composites for use in high-rate supercapacitor electrodes](/preview/png/10425082.png)
چکیده انگلیسی
A conventional hydrothermal deposition process is used to graft ruthenium oxide (RuO2) nanoparticles onto carbon nanofibers (CNFs). The obtained RuO2 nanoparticles have an average diameter of 2Â nm and are homogenously distributed on the CNF surfaces. Supercapacitors are fabricated using the resulting RuO2 grafted CNFs nanocomposite as the electrodes. The existence of CNFs leads to reduced contact resistance among the RuO2 nanoparticles and provides a network for fast electron transport, which then contributes to enhanced electrochemical performance. The enhancement is proportional to the RuO2 content and can be as high as 638% at a high sweep rate of 200Â mVÂ sâ1, at which a capacitance is 155Â FÂ gâ1. Stability of the RuO2-grafted CNF capacitor is also demonstrated by subjecting the capacitor to a potential sweep at 500Â mVÂ sâ1 for 1000 cycles. Furthermore, the RuO2 grafted CNF capacitor exhibits a very short relaxation time of 0.17Â s, which is desirable for high rate charge and discharge.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 72, Issue 13, 22 August 2012, Pages 1524-1529
Journal: Composites Science and Technology - Volume 72, Issue 13, 22 August 2012, Pages 1524-1529
نویسندگان
Chih-Ming Chuang, Cheng-Wei Huang, Hsisheng Teng, Jyh-Ming Ting,