Enhanced fluid flow through nanoscale carbon pipes
Enhanced fluid flow through nanoscale carbon pipes
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DOI：
10.1021/nl080705f
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发表时间：
2008-09-01
期刊：
影响因子：
10.8
通讯作者：
Quirke, Nick
中科院分区：
文献类型：
--
作者：
Whitby, Max;Cagnon, Laurent;Quirke, Nick
最近的实验和理论研究表明，通过纳米级（d < 10 nm）碳孔的压力驱动的流体流动比通过从常规理论外推所预测的快4至5个数量级。在这里，我们报告了水，乙醇和癸烷通过碳纳米管的流动实验结果，碳纳米管的内径（43 +/- 3 nm）比以前研究的大。我们发现增强运输高达45倍的理论预测。与以前的工作相反，在我们的系统中，癸烷的流动速度比水快。这些纳米管由使用单步制造工艺从氧化铝模板中的乙烯蒸气沉积的无定形碳组成。
Recent experimental and theoretical studies demonstrate that pressure driven flow of fluids through nanoscale (d < 10 nm) carbon pores occurs 4 to 5 orders of magnitude faster than predicted by extrapolation from conventional theory. Here, we report experimental results for flow of water, ethanol, and decane through carbon nanopipes with larger inner diameters (43 +/- 3 nm) than previously investigated. We find enhanced transport up to 45 times theoretical predictions. In contrast to previous work, in our systems, decane flows faster than water. These nanopipes were composed of amorphous carbon deposited from ethylene vapor in alumina templates using a single step fabrication process.