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Title: Tailored Transport through Vertically Aligned Carbon Nanofibre Membranes; Controlled Synthesis, Modelling, and Passive Diffusion Experiments

Abstract

The ability to control the permeability of a synthetic membrane structure formed by a spatially stochastic forest of vertically aligned carbon nanofibres is demonstrated. Control of membrane pore size and morphology was achieved by varying the thickness of a uniform, conformal coating of SiO2 on the nanofibre surfaces. Characterization of passive diffusion using fluorescence microscopy and labelled latex beads confirms the ability to alter membrane permeability. Further, statistically reproducible transport regimes are predicted for the spatially stochastic membrane as a function of the nanofibre diameter by a Monte Carlo simulation technique. Realizing predictable nanoscale behaviour in a microscopically random, statistical structure is essential for applications requiring controlled, species specific transport.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1003379
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Nanotechnology
Additional Journal Information:
Journal Volume: 16; Journal Issue: 12; Journal ID: ISSN 0957--4484
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; CARBON; COATINGS; DIFFUSION; FLUORESCENCE; LATEX; MEMBRANE PORES; MEMBRANES; MICROSCOPY; MORPHOLOGY; PERMEABILITY; SIMULATION; SYNTHESIS; THICKNESS; TRANSPORT

Citation Formats

Fowlkes, Jason Davidson, Fletcher, Benjamin L, Hullander, Eric D, Klein, Kate L, Hensley, Dale K, Melechko, Anatoli Vasilievich, Simpson, Michael L, and Doktycz, Mitchel John. Tailored Transport through Vertically Aligned Carbon Nanofibre Membranes; Controlled Synthesis, Modelling, and Passive Diffusion Experiments. United States: N. p., 2005. Web. doi:10.1088/0957-4484/16/12/063.
Fowlkes, Jason Davidson, Fletcher, Benjamin L, Hullander, Eric D, Klein, Kate L, Hensley, Dale K, Melechko, Anatoli Vasilievich, Simpson, Michael L, & Doktycz, Mitchel John. Tailored Transport through Vertically Aligned Carbon Nanofibre Membranes; Controlled Synthesis, Modelling, and Passive Diffusion Experiments. United States. https://doi.org/10.1088/0957-4484/16/12/063
Fowlkes, Jason Davidson, Fletcher, Benjamin L, Hullander, Eric D, Klein, Kate L, Hensley, Dale K, Melechko, Anatoli Vasilievich, Simpson, Michael L, and Doktycz, Mitchel John. Sat . "Tailored Transport through Vertically Aligned Carbon Nanofibre Membranes; Controlled Synthesis, Modelling, and Passive Diffusion Experiments". United States. https://doi.org/10.1088/0957-4484/16/12/063.
@article{osti_1003379,
title = {Tailored Transport through Vertically Aligned Carbon Nanofibre Membranes; Controlled Synthesis, Modelling, and Passive Diffusion Experiments},
author = {Fowlkes, Jason Davidson and Fletcher, Benjamin L and Hullander, Eric D and Klein, Kate L and Hensley, Dale K and Melechko, Anatoli Vasilievich and Simpson, Michael L and Doktycz, Mitchel John},
abstractNote = {The ability to control the permeability of a synthetic membrane structure formed by a spatially stochastic forest of vertically aligned carbon nanofibres is demonstrated. Control of membrane pore size and morphology was achieved by varying the thickness of a uniform, conformal coating of SiO2 on the nanofibre surfaces. Characterization of passive diffusion using fluorescence microscopy and labelled latex beads confirms the ability to alter membrane permeability. Further, statistically reproducible transport regimes are predicted for the spatially stochastic membrane as a function of the nanofibre diameter by a Monte Carlo simulation technique. Realizing predictable nanoscale behaviour in a microscopically random, statistical structure is essential for applications requiring controlled, species specific transport.},
doi = {10.1088/0957-4484/16/12/063},
url = {https://www.osti.gov/biblio/1003379}, journal = {Nanotechnology},
issn = {0957--4484},
number = 12,
volume = 16,
place = {United States},
year = {2005},
month = {1}
}