کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1636884 | 1516975 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and performance of hierarchically porous carbons as oxygen electrodes for lithium oxygen batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Preparation and performance of hierarchically porous carbons as oxygen electrodes for lithium oxygen batteries Preparation and performance of hierarchically porous carbons as oxygen electrodes for lithium oxygen batteries](/preview/png/1636884.png)
چکیده انگلیسی
The hierarchically porous carbons (HPCs) were prepared by sol-gel selassembly technology in different surfactant concentrations and were used as the potential electrode for lithium oxygen batteries. The physical and electrochemical properties of the as-prepared HPCs were investigated by filed emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), nitrogen adsorption-desorption isotherm and galvanostatic charge/discharge. The results indicate that all of the HPCs mainly possess mesoporous structure with nearly similar pore size distribution. Using the HPCs as the electrode, a high discharge capacity for lithium oxygen battery can be achieved, and the discharge capacity increases with the specific surface area. Especially, the HPCs-3 oxygen electrode with CTAB concentration of 0.27 mol/L exhibits good capacity retention through controlling discharge depth to 800 mA·h/g and the highest discharge capacity of 2050 mA·h/g at a rate of 0.1 mA/cm2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 23, Issue 12, December 2013, Pages 3685-3690
Journal: Transactions of Nonferrous Metals Society of China - Volume 23, Issue 12, December 2013, Pages 3685-3690
نویسندگان
Yun-feng SONG, Xian-you WANG, Yan-song BAI, Hao WANG, Ben-an HU, Hong-bo SHU, Xiu-kang YANG, Lan-hua YI, Bo-wei JU, Xiao-yan ZHANG,