Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Scalable electric-field-assisted fabrication of vertically aligned carbon nanotube membranes with flow enhancement

Journal Article · · Carbon

In this work, we report a solution-based approach for fabricating vertically aligned carbon-nanotube (VACNT) membranes, which improves on the unaligned nature of CNT mixed-matrix membranes. This approach addresses important challenges regarding scalability and incorporation of different types and sizes of nanotube as pores in a membrane. In a new, solvent-deposition approach, CNTs are dispersed and then aligned and concentrated via electro-deposition from an organic solvent, using a composite AC + DC electric field to form aligned CNT arrays. This enables VACNT number densities that are two orders-of-magnitude higher than possible from direct suspension of CNTs in the liquid oligomer. The solvent is then replaced by a UV-curable oligomer, which is selectively cured to form macroscopic membranes of highly controlled thickness. After plasma etching to open pores, the VACNT membranes are shown to be permeable, and to have pore sizes consistent with flow through internal channels of the CNTs. In a first for field-aligned, solution-fabricated VACNT membranes, the pores show substantial, 100–300×, gas-flow enhancement compared to theory, similar to membranes fabricated via less scalable methods (i.e., by CVD growth of already aligned CNT forests). The solution-based, electric-field-assisted approach aligns nanotubes of different sizes and types grown by any means, and is scalable to the efficient fabrication of large-area VACNT membranes for a variety of important applications.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); Defense Threat Reduction Agency (DTRA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1764751
Report Number(s):
LLNL-JRNL--813723; 1021597
Journal Information:
Carbon, Journal Name: Carbon Journal Issue: na Vol. 157; ISSN 0008-6223
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (75)

Engineering Carbon Nanotube Forest Superstructure for Robust Thermal Desalination Membranes journal June 2019
Nanofluidic Transport through Isolated Carbon Nanotube Channels: Advances, Controversies, and Challenges journal June 2015
Ultrabreathable and Protective Membranes with Sub-5 nm Carbon Nanotube Pores journal May 2016
Investigation of Carbon Nanotubes in Mixed Matrix Membranes for Gas Separation: A Review journal December 2016
Fast mass and charge transport through electrically aligned CNT/polymer nanocomposite membranes: Fast mass and charge transport journal January 2016
Diffusion-limited ion flow through pores journal December 1976
Nanofluidics in carbon nanotubes journal December 2007
Electrophoretic deposition of carbon nanotubes journal December 2006
Vertically-aligned carbon nano-tube membrane filters with superhydrophobicity and superoleophilicity journal July 2010
The performance of superhydrophobic and superoleophilic carbon nanotube meshes in water–oil filtration journal February 2011
Removal of natural organic matter in water using functionalised carbon nanotube buckypaper journal August 2013
Gas transport in vertically-aligned carbon nanotube/parylene composite membranes journal January 2014
Carbon nanotube networks on different platforms journal November 2014
Flame-assisted chemical vapor deposition for continuous gas-phase synthesis of 1-nm-diameter single-wall carbon nanotubes journal November 2018
Fabrication and characterization of anti-fouling and non-toxic polyvinylidene fluoride -Sulphonated carbon nanotube ultrafiltration membranes for membrane bioreactors applications journal February 2019
Dramatic transport properties of carbon nanotube membranes for a robust protein channel mimetic platform journal February 2012
Poly(2,6-dimethyl-1,4-phenylene oxide) hybrid membranes filled with magnetically aligned iron-encapsulated carbon nanotubes (Fe@MWCNTs) for enhanced air separation journal March 2018
Aligned CNT/Polymer nanocomposite membranes for hydrogen separation journal May 2009
Vertically aligned carbon nanotube membranes on macroporous alumina supports journal November 2007
Characterization and evaluation of carbon nanotube Bucky-Paper membranes for direct contact membrane distillation journal April 2010
Fabrication and gas transport properties of SWNT/polyacrylic nanocomposite membranes journal June 2011
Enhanced durability and hydrophobicity of carbon nanotube bucky paper membranes in membrane distillation journal July 2011
Fabrication of flexible, aligned carbon nanotube/polymer composite membranes by in-situ polymerization journal June 2014
High performance and antifouling vertically aligned carbon nanotube membrane for water purification journal June 2014
Electro-casting aligned MWCNTs/polystyrene composite membranes for enhanced gas separation performance journal July 2014
Enhancement of hydrogen gas permeability in electrically aligned MWCNT-PMMA composite membranes journal October 2010
Gas separation performance of polyethersulfone/multi-walled carbon nanotubes mixed matrix membranes journal July 2011
Controlling and Expanding the Selectivity of Filtration Membranes journal October 2018
Tuned Fabrication of the Aligned and Opened CNT Membrane with Exceptionally High Permeability and Selectivity for Bioalcohol Recovery journal August 2018
Polypiperazine-amide Nanofiltration Membrane Modified by Different Functionalized Multiwalled Carbon Nanotubes (MWCNTs) journal July 2016
Mixed-Matrix Membranes Containing Carbon Nanotubes Composite with Hydrogel for Efficient CO 2 Separation journal October 2016
Contactless Determination of Electrical Conductivity of One-Dimensional Nanomaterials by Solution-Based Electro-orientation Spectroscopy journal May 2015
Quantifying the Hierarchical Order in Self-Aligned Carbon Nanotubes from Atomic to Micrometer Scale journal April 2017
Carbon Nanotubes and Related Nanomaterials: Critical Advances and Challenges for Synthesis toward Mainstream Commercial Applications journal November 2018
Nanoparticle ζ -Potentials journal October 2011
Carbon Nanotube Membrane Stack for Flow-through Sequential Regenerative Electro-Fenton journal January 2015
pH-Tunable Ion Selectivity in Carbon Nanotube Pores journal September 2010
Electrophoretic Transport of Biomolecules through Carbon Nanotube Membranes journal March 2011
Scalable Fabrication of Carbon Nanotube/Polymer Nanocomposite Membranes for High Flux Gas Transport journal September 2007
Molecular Origin of Fast Water Transport in Carbon Nanotube Membranes: Superlubricity versus Curvature Dependent Friction journal October 2010
Measurement of the Rate of Water Translocation through Carbon Nanotubes journal May 2011
High Density, Vertically-Aligned Carbon Nanotube Membranes journal January 2009
Mass Transport through Carbon Nanotube Membranes in Three Different Regimes: Ionic Diffusion and Gas and Liquid Flow journal April 2011
Origin of Giant Ionic Currents in Carbon Nanotube Channels journal August 2011
Growth of Ultrahigh Density Single-Walled Carbon Nanotube Forests by Improved Catalyst Design journal March 2012
Multicomponent Solubility Parameters for Single-Walled Carbon Nanotube−Solvent Mixtures journal August 2009
Giant osmotic energy conversion measured in a single transmembrane boron nitride nanotube journal February 2013
Massive radius-dependent flow slippage in carbon nanotubes journal September 2016
Carbon nanotube membranes with ultrahigh specific adsorption capacity for water desalination and purification journal August 2013
Electrophoretically induced aqueous flow through single-walled carbon nanotube membranes journal January 2012
Nanofluidics, from bulk to interfaces journal January 2010
Effect of functionalized multi-walled carbon nanotubes on the microstructure and performances of PVDF membranes journal January 2015
Voltage-activated transport of ions through single-walled carbon nanotubes journal January 2017
Highly efficient electroosmotic flow through functionalized carbon nanotube membranes journal January 2011
Electrical polarizability of carbon nanotubes in liquid suspension journal May 2007
Rotational friction of single-wall carbon nanotubes in liquid suspension journal February 2009
Sub-additive ionic transport across arrays of solid-state nanopores journal January 2014
Electrokinetics of scalable, electric-field-assisted fabrication of vertically aligned carbon-nanotube/polymer composites journal June 2015
Ion exclusion by sub-2-nm carbon nanotube pores journal June 2008
Programmable transdermal drug delivery of nicotine using carbon nanotube membranes journal June 2010
Access resistance of a small circular pore journal October 1975
Mass transport through vertically aligned large diameter MWCNTs embedded in parylene journal October 2012
Gas permeation through nanoporous membranes in the transitional flow region journal January 2016
Effective enhancement of gas separation performance in mixed matrix membranes using core/shell structured multi-walled carbon nanotube/graphene oxide nanoribbons journal January 2017
Large-scale polymeric carbon nanotube membranes with sub–1.27-nm pores journal March 2018
Aligned Multiwalled Carbon Nanotube Membranes journal January 2004
Water-Assisted Highly Efficient Synthesis of Impurity-Free Single-Walled Carbon Nanotubes journal November 2004
Fast Mass Transport Through Sub-2-Nanometer Carbon Nanotubes journal May 2006
Translocation of Single-Stranded DNA Through Single-Walled Carbon Nanotubes journal December 2009
Maximizing the right stuff: The trade-off between membrane permeability and selectivity journal June 2017
Enhanced water permeability and tunable ion selectivity in subnanometer carbon nanotube porins journal August 2017
Preparation and Transport Performances of High-Density, Aligned Carbon Nanotube Membranes journal June 2015
Effect of vertically aligned carbon nanotube density on the water flux and salt rejection in desalination membranes journal July 2016
Activated Carbon, Carbon Nanotubes and Graphene: Materials and Composites for Advanced Water Purification journal June 2017
Recent Developments in Carbon Nanotube Membranes for Water Purification and Gas Separation journal January 2010

Similar Records

Electrokinetics of scalable, electric-field-assisted fabrication of vertically aligned carbon-nanotube/polymer composites
Journal Article · Tue Jun 02 00:00:00 EDT 2015 · Journal of Applied Physics · OSTI ID:1763190

Fast Water Transport through Subnanometer Diameter Vertically Aligned Carbon Nanotube Membranes
Journal Article · Mon Jun 05 00:00:00 EDT 2023 · Nano Letters · OSTI ID:2005106

Field Emission Properties of Cu-Filled Vertically Aligned Carbon Nanotubes Grown Directly on Thin Cu Foils
Journal Article · Thu Jun 06 00:00:00 EDT 2024 · Nanomaterials · OSTI ID:2469609