کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7833306 | 1503517 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rational design of activated carbon nitride materials for symmetric supercapacitor applications
ترجمه فارسی عنوان
طراحی منطقی از مواد نیترید کربن فعال برای کاربردهای متقارن ابرکاپاسیون
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کلمات کلیدی
ابررسانای متقارن، نیترید کربن فعال، ذخیره انرژی، نیتروژن غنی،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
The design and synthesis of nitrogenârich activated carbon materials has been seen as one of major topic for supercapacitors. Herein, porous activated carbon nitride (ACN) materials were obtained by a oneâstep pyrolysis/activation of melamine and citric acid derived precursor at different temperature. The nitrogen/oxygen content and BET surface area of ACNs were varied with the increasing of pyrolysis temperature. In detail, the optimized ACNâ700 electrode with a BET surface area of 716â¯m2â¯gâ1 show a specific capacitance of 185â¯Fâ¯gâ1 at the current density of 0.5â¯Aâ¯gâ1. Then, the assembled symmetric cell based on ACNâ700 can achieve the energy density of 16.9â¯Whâ¯kgâ1 and 6.2â¯Whâ¯kgâ1 in 2â¯M [BMIm]BF4/acetonitrile and 6â¯M KOH, respectively. The enhanced performance of ACNâ700 is mainly due to the introducing of nitrogen derived pseudoâcapacitance, associated with the large surface area and surface oxygenation after activation. Thus, the raw materials, facile procedure and high performances enable the current activated carbon nitride material with great potentials for supercapacitors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 455, 15 October 2018, Pages 841-848
Journal: Applied Surface Science - Volume 455, 15 October 2018, Pages 841-848
نویسندگان
Cheng Shen, Rongzhen Li, Lijin Yan, Yuxin Shi, Huatong Guo, Jiahao Zhang, Yi Lin, Zhaokai Zhang, Yinyan Gong, Lengyuan Niu,