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zhangtianwen

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[求助] 求该领域大神翻译一篇关于石墨烯论文的摘要!!!!! 已有1人参与

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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whateverer

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zhangtianwen: 金币+10, ★★★很有帮助, 赞! 2014-08-16 19:37:45
阿飞1990乖乖: 金币+2, 感谢虫友热心应助,外语版因你更精彩!\(^o^)/~ 2014-08-16 23:57:19
超级电容器,又被称作电化学电容器,将电荷储存在高比表面积的导电材料中。材料的低能量密度和相对较高的内阻限制了其广泛应用。通过化学活化剥离的氧化石墨,我么合成了一种高性能的多孔碳材料,该材料BET高达3100M2/g,具有高电导率和低含氧、含氢量。这种通过sp2杂化连接起来的碳材料片层只有单原子厚度且高度卷曲,孔径只有0.6-5nm,具有连续的三维网状结构。将此材料组装成双电极体系电容器进行电化学测试,有机体系和无机体系都得到较高的质量比电容和能量密度。而用于制备此碳材料的工艺也可以大规模工业化使用。
2楼2014-08-16 16:45:42
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