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Title: Membranes for nanometer-scale mass fast transport

Abstract

Nanoporous membranes comprising single walled, double walled, and multiwalled carbon nanotubes embedded in a matrix material were fabricated for fluid mechanics and mass transfer studies on the nanometer scale and commercial applications. Average pore size can be 2 nm to 20 nm, or seven nm or less, or two nanometers or less. The membrane can be free of large voids spanning the membrane such that transport of material such as gas or liquid occurs exclusively through the tubes. Fast fluid, vapor, and liquid transport are observed. Versatile micromachining methods can be used for membrane fabrication. A single chip can comprise multiple membranes. These membranes are a robust platform for the study of confined molecular transport, with applications in liquid and gas separations and chemical sensing including desalination, dialysis, and fabric formation.

Inventors:
 [1];  [2];  [3];  [4]
  1. San Leandro, CA
  2. Berkeley, CA
  3. Belmont, CA
  4. Oakland, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1028789
Patent Number(s):
8038887
Application Number:
12/064,604
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Bakajin, Olgica, Holt, Jason, Noy, Aleksandr, and Park, Hyung Gyu. Membranes for nanometer-scale mass fast transport. United States: N. p., 2011. Web.
Bakajin, Olgica, Holt, Jason, Noy, Aleksandr, & Park, Hyung Gyu. Membranes for nanometer-scale mass fast transport. United States.
Bakajin, Olgica, Holt, Jason, Noy, Aleksandr, and Park, Hyung Gyu. Tue . "Membranes for nanometer-scale mass fast transport". United States. https://www.osti.gov/servlets/purl/1028789.
@article{osti_1028789,
title = {Membranes for nanometer-scale mass fast transport},
author = {Bakajin, Olgica and Holt, Jason and Noy, Aleksandr and Park, Hyung Gyu},
abstractNote = {Nanoporous membranes comprising single walled, double walled, and multiwalled carbon nanotubes embedded in a matrix material were fabricated for fluid mechanics and mass transfer studies on the nanometer scale and commercial applications. Average pore size can be 2 nm to 20 nm, or seven nm or less, or two nanometers or less. The membrane can be free of large voids spanning the membrane such that transport of material such as gas or liquid occurs exclusively through the tubes. Fast fluid, vapor, and liquid transport are observed. Versatile micromachining methods can be used for membrane fabrication. A single chip can comprise multiple membranes. These membranes are a robust platform for the study of confined molecular transport, with applications in liquid and gas separations and chemical sensing including desalination, dialysis, and fabric formation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {10}
}

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