Theoretical study of fast diffusion in carbon nanontubes

Douglas A. Barlow; Fenner E. Colson

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Theoretical study of fast diffusion in carbon nanontubes

机译：碳镍氢管快速扩散的理论研究

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Using a recently reported method for the statistical representation of gaseous diffusion within a cylindrical pore, we report here on an analysis of situations that describe fast diffusion within carbon nanotubes. It is proposed that if gaseous flow properties of the tube, in the highly rarefied situation, are due to there being only specular particle-wall reflections, then these particles can transit the tube via self-diffusion. On comparing this self-diffusive flux with Knudsen transport diffusion, our model predicts that enhanced diffusion is indeed possible in the carbon nanotube. Depending upon the statistical nature of the particle-wall scattering phenomenon, the enhancements are predicted be three to four times that of classical transport diffusion and, for certain conditions, the enhancement factor can be greater than 4.

机译：利用最近报道的圆柱形孔内的气态扩散统计表示的方法，我们在此报告关于描述碳纳米管内快速扩散的情况的分析。提出，如果管的气流性能，在高度稀有的情况下，由于只有镜面颗粒壁反射，则这些颗粒可以通过自扩散来转动管。在将这种自扩散磁通与knudsen传输扩散的比较时，我们的模型预测，在碳纳米管中确实可以增强扩散。取决于粒子壁散射现象的统计性质，预测的增强是古典传输扩散的三到四倍，并且对于某些条件，增强因子可以大于4。

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来源
《Journal of Applied Physics》 |2020年第18期|184302.1-184302.5|共5页
作者
Douglas A. Barlow; Fenner E. Colson;
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作者单位

'Department of Physics and Astronomy Jacksonville University Jacksonville Florida 32211 USA;

Department of Chemistry and Physics Florida Gulf Coast University Ft. Myers Florida 33965 USA;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种 eng
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Theoretical study of fast diffusion in carbon nanontubes

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