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Chapter 3

Mass Transport Across Atomically Thin Membranes

Mass Transport across two-dimensional apertures and barriers differs significantly from the transport through three-dimensional conduits. Two-dimensional materials composed of one atomic layer offer a unique system to investigate possible mechanisms that govern the transfer across such pores. Small transport resistance to the cross-pore permeation caused by atomic thickness can invoke conventionally neglected surface effects in gas transport. Similarly, liquid and ionic transport across the two-dimensional pores is not governed by conventional continuum models, revealing new phenomena. Small liquid-flow resistance promises ultimate permeation such that membranes containing these two-dimensional pores could yield excellent separation membranes, given proper pore-size design and molecular interaction with the pore. An understanding of the fundamental transport mechanisms provides a basis for rational membrane design that is of interest in a broad range of applications such as in the petrochemical, environmental, biomedical, energy, as well as transportation industries.

Publication details


Print publication date
27 Sep 2018
Copyright year
2019
Print ISBN
978-1-78262-939-9
PDF eISBN
978-1-78801-301-7
ePub eISBN
978-1-78801-531-8