Fast transport of water in carbon nanotubes

a review of current accomplishments and challenges

Journal article (2020)

Authors

Alan Sam Indian Institute of Technology Madras

Remco Hartkamp Complex Fluid Processing - Mechanical, Maritime and Materials Engineering

Sridhar Kumar Kannam Swinburne University of Technology

Jeetu S. Babu Amrita Vishwa Vidyapeetham University

Sarith P. Sathian Indian Institute of Technology Madras

Peter J. Daivis Royal Melbourne Institute of Technology University

B. D. Todd Swinburne University of Technology

Research Group

Complex Fluid Processing (Mechanical, Maritime and Materials Engineering) (TU Delft)

DOI: https://doi.org/10.1080/08927022.2020.1782401

Water Carbon nanotube Friction coefficient Flow rate enhancement Nanofluidics Slip length

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Published Date

2020

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Process and Energy

Research Group

Complex Fluid Processing

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.

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