skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Water vapor transport in carbon nanotube membranes and application in breathable and protective fabrics

Authors:
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1415675
Grant/Contract Number:
AC52-07NA27344
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Current Opinion in Chemical Engineering
Additional Journal Information:
Journal Volume: 16; Journal Issue: C; Related Information: CHORUS Timestamp: 2018-01-04 16:14:00; Journal ID: ISSN 2211-3398
Publisher:
Elsevier
Country of Publication:
United Kingdom
Language:
English

Citation Formats

Fornasiero, Francesco. Water vapor transport in carbon nanotube membranes and application in breathable and protective fabrics. United Kingdom: N. p., 2017. Web. doi:10.1016/j.coche.2017.02.001.
Fornasiero, Francesco. Water vapor transport in carbon nanotube membranes and application in breathable and protective fabrics. United Kingdom. doi:10.1016/j.coche.2017.02.001.
Fornasiero, Francesco. Mon . "Water vapor transport in carbon nanotube membranes and application in breathable and protective fabrics". United Kingdom. doi:10.1016/j.coche.2017.02.001.
@article{osti_1415675,
title = {Water vapor transport in carbon nanotube membranes and application in breathable and protective fabrics},
author = {Fornasiero, Francesco},
abstractNote = {},
doi = {10.1016/j.coche.2017.02.001},
journal = {Current Opinion in Chemical Engineering},
number = C,
volume = 16,
place = {United Kingdom},
year = {Mon May 01 00:00:00 EDT 2017},
month = {Mon May 01 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.coche.2017.02.001

Citation Metrics:
Cited by: 1work
Citation information provided by
Web of Science

Save / Share:
  • Here, small-diameter carbon nanotubes (CNTs) are shown to enable exceptionally fast transport of water vapor under a concentration gradient driving force. Thanks to this property, membranes having sub-5 nm CNTs as conductive pores feature outstanding breathability while maintaining a high degree of protection from biothreats by size exclusion.
  • Understanding and controlling the transportation of water molecules across carbon nanotube (CNT) is of great importance in bio-nanotechnology. In this paper, we systematically investigate the water transporting behaviors (i.e., water flow rate) inside the CNT in the presence of lipid membranes by using all atom molecular dynamic simulations. Our results show that the hydrophilicity of CNT as well as membrane thickness can have important impacts on the water flow rate. Interestingly, since the membrane thickness is temperature-dependent, the water flow rate can exhibit thermo-responsive behaviors. Further, we also provide insights into the effect of CNT on lipid membranes. It ismore » found that all CNTs can increase the lipid tail order parameters and thicken the membrane at 320 K; while these effects are not obvious at 290 K. Importantly, we observe that the CNT with specific hydrophobicity has the least effect on membranes. The present study may give some useful advice on future experimental design of novel devices and sensors.« less
  • Here, we quantify the electron transport properties of aligned carbon nanotube (CNT) networks as a function of the CNT length, where the electrical conductivities may be tuned by up to 10× with anisotropies exceeding 40%. Testing at elevated temperatures demonstrates that the aligned CNT networks have a negative temperature coefficient of resistance, and application of the fluctuation induced tunneling model leads to an activation energy of ≈14 meV for electron tunneling at the CNT-CNT junctions. Since the tunneling activation energy is shown to be independent of both CNT length and orientation, the variation in electron transport is attributed to the numbermore » of CNT-CNT junctions an electron must tunnel through during its percolated path, which is proportional to the morphology of the aligned CNT network.« less