کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
183037 459531 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Boron-doped ordered mesoporous carbons for the application of supercapacitors
ترجمه فارسی عنوان
کربن های مزوپور به منظور استفاده از ابررایانه ها سفارش داده شده است
کلمات کلیدی
بورون دوپد شده دستورالعمل های کربنی مشروب دارد، نانوکستین، قالب، عملکرد فوقالعاده، سوپراسپتور
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• The BOMCs are prepared by nanocasting approach.
• The obtained BOMCs maintain the ordered mesostructure.
• The high specific capacitance of 267.8 F g−1 is achieved for BOMC-0.05.

The boron-doped ordered mesoporous carbons (BOMCs) with different boron content are prepared by nanocasting approach using silica KIT-6, furfuryl alcohol and boric acid as the template, carbon and boron sources, respectively. The pore structure, morphology and surface physicochemical properties of the BOMCs samples are characterized by nitrogen adsorption/desorption isotherm, transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results demonstrate that BOMCs inherit the ordered mesostructure of the pristine OMC and possess some boron-doped species on the surface. The electrochemical performances of the BOMCs are characterized by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) test, electrochemical impedance spectroscopy (EIS) and cycle life measurement. It has been found that with the increase of the boron content, the BOMC-0.05 shows high specific capacitance of 267.8 F g−1 at the scan rate of 5 mV s−1 and low resistance. At the same time, the symmetrical supercapacitor using BOMC-0.05 as electrode shows a specific capacitance of as high as 69.8 F g−1 and excellent cyclic stability with the specific capacitance retention of 92% even after 10000 consecutive cycles. The remarkable electrochemical behaviors demonstrate that the BOMCs will be a promising electrode material for the application of supercapacitors.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 207, 20 July 2016, Pages 266–274
نویسندگان
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