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最新一期science杂志上关于石墨烯用作超级电容器的文章
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Carbon-Based Supercapacitors Produced by Activation of Graphene Science 24 June 2011: Vol. 332 no. 6037 pp. 1537-1541 DOI: 10.1126/science.1200770 Supercapacitors, also called ultracapacitors or electrochemical capacitors, store electrical charge on high-surface-area conducting materials. Their widespread use is limited by their low energy storage density and relatively high effective series resistance. Using chemical activation of exfoliated graphite oxide, we synthesized a porous carbon with a Brunauer-Emmett-Teller surface area of up to 3100 square meters per gram, a high electrical conductivity, and a low oxygen and hydrogen content. This sp2-bonded carbon has a continuous three-dimensional network of highly curved, atom-thick walls that form primarily 0.6- to 5-nanometer-width pores. Two-electrode supercapacitor cells constructed with this carbon yielded high values of gravimetric capacitance and energy density with organic and ionic liquid electrolytes. The processes used to make this carbon are readily scalable to industrial levels. |
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gcl
thank you for sharing 
137楼2011-09-15 18:15:04
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2011-06-24 12:02
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三星好评 
2011-06-24 13:27
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五星好评 顶一下，感谢分享！
huixiecn5楼
2011-06-24 15:04
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2011-06-24 15:10
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五星好评 顶一下，感谢分享！
2011-06-24 15:32
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五星好评 顶一下，感谢分享！
xianmo8楼
2011-06-24 18:52
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五星好评 顶一下，感谢分享！
2011-06-24 22:18
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五星好评 顶一下，感谢分享！
yanguochun10楼
2011-06-24 22:37
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luguang11楼
2011-06-24 23:37
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guanxfwd12楼
2011-06-25 00:35
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lingyun7914楼
2011-06-25 00:42
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