کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
818201 | 1469432 | 2013 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced electrochemical capacitance of polyaniline/graphene hybrid nanosheets with graphene as templates
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
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چکیده انگلیسی
Polyaniline/graphene nanocomposites (PANi/GR) were prepared via PANi covalent grafting from the surface of GR. The unique structure of hybrid nanosheets was formed with uniform PANi layer coating GR without phase separation appearing when the weight ratio of aniline-to-graphene was 1:1. The unique PANi/GR hybrid nanosheets as electrode material for supercapacitors have a specific capacitance as high as 922Â F/g at 10Â mV/s and still retain a specific capacitance of 106Â F/g at a high scan rate of 1Â V/s due to synergistic effect between PANi and GR. The capacitance retention was â¼90% after 1000 cycles, which is much better than that of pure PANi or other PANi nanocomposites. The enhanced capacitive performance of PANi/GR hybrid nanosheets makes them have potential application in developing high performance energy storage devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 53, October 2013, Pages 376-381
Journal: Composites Part B: Engineering - Volume 53, October 2013, Pages 376-381
نویسندگان
Fei-Peng Du, Jing-Jing Wang, Chak-Yin Tang, Chi-Pong Tsui, Xiao-Lin Xie, Ka-Fu Yung,