کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1555971 | 999164 | 2015 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison of Few-layer Graphene Prepared from Natural Graphite through Fast Synthesis Approach
ترجمه فارسی عنوان
مقایسه گرافن چند لایه تهیه شده از گرافیت طبیعی از طریق روش سنتز سریع
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کلمات کلیدی
گرافیت، اکسید گرافیت، گرافن، باتری لیتیوم یون،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
شیمی مواد
چکیده انگلیسی
We report the synthesis of high quality few-layer graphene on a large scale using high purity natural graphite from Sri Lanka. A novel thermal method was adapted to prepare graphene from intermediate graphite oxide, which was obtained by heating the intermediate at low temperature (above 150â°C) in air for 5âmin and subsequent heating at 500â°C in Argon for 15âmin. The samples were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, Raman spectroscopy etc. The properties and the performance of graphene were observed to depend on the graphite source. The reduced graphite oxide from Kahatagaha graphite source exhibits higher Brunauer-Emmett-Teller specific surface area ~500âm2âgâ1 and stable specific capacity as an anode in Li-ion batteries, whereas Bogala graphite showed higher initial irreversibility and higher capacity as anode, exceeding the theoretical specific capacity of graphite. Both graphenes showed high electrical conductivity. The graphene, which exists in stacks of only a few layers, supposed to be 2-6 layers, would be promising for a vast variety of applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Science & Technology - Volume 31, Issue 9, September 2015, Pages 907-912
Journal: Journal of Materials Science & Technology - Volume 31, Issue 9, September 2015, Pages 907-912
نویسندگان
Iresha R.M. Kottegoda, Xuanwen Gao, Liyanage D.C. Nayanajith, Chinthan H. Manorathne, Jun Wang, Jia-Zhao Wang, Hua-Kun Liu, Yossef Gofer,