ABSTRACT

The intriguing mass transport properties of carbon nanotubes (CNTs) have received widespread attention, especially the rapid transport of water through CNTs due to their atomically smooth wall interiors. Extensive research has been dedicated to the comprehension of various aspects of water flow in contact with CNTs, the most prominent ones being the studies on slip and flow rates. Experimental and computational studies have confirmed an enhanced water flow rate through this graphitic nanoconfinement. However, a quantitative agreement has not yet been attained. These disparities coupled with incomplete knowledge of the mechanisms of water transport at nanoscale regimes are hindering the possibilities to integrate CNTs in numerous nanofluidic applications. In the present review, we focus on the slip and flow rates of water through CNTs and the factors influencing them. We discuss the key sources of discrepancies in water flow rate and suggest directions for future study.

摘要

碳纳米管 (CNT) 有趣的传质特性已受到广泛关注，尤其是由于其原子级光滑的壁内部，水通过 CNT 的快速传输。广泛的研究致力于理解与碳纳米管接触的水流的各个方面，最突出的是对滑移和流速的研究。实验和计算研究已经证实通过这种石墨纳米限制提高了水流速。然而，尚未达成定量协议。这些差异加上对纳米级水传输机制的不完全了解阻碍了将碳纳米管集成到众多纳米流体应用中的可能性。在本次审查中，我们专注于水通过 CNT 的滑移和流速以及影响它们的因素。我们讨论了水流量差异的主要来源，并提出了未来研究的方向。