Title: Preparation of aligned nanotube membranes for water and gas separation applications

Abstract

Fabrication methods for selective membranes that include aligned nanotubes can advantageously include a mechanical polishing step. The nanotubes have their ends closed off during the step of infiltrating a polymer precursor around the nanotubes. This prevents polymer precursor from flowing into the nanotubes. The polishing step is performed after the polymer matrix is formed, and can open up the ends of the nanotubes.

Inventors:

Lulevich, Valentin; Bakajin, Olgica; Klare, Jennifer E.; Noy, Aleksandr

Issue Date:

2016-01-05

Research Org.:

Porifera, Inc., Hayward, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1234695

Patent Number(s):

9227360

Application Number:

13/654,057

Assignee:

Porifera, Inc. (Hayward, CA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B01D71/46 - Epoxy resins

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y40/00 - Manufacture or treatment of nanostructures

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B01D71/021 - {Carbon}
B01D69/148 - {Organic/inorganic mixed matrix membranes}

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS

B29C57/10 - Closing

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B01D67/0079 - {Formation of membranes comprising organic and inorganic components}

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DOE Contract Number:  

AR0000025

Resource Type:

Patent

Resource Relation:

Patent File Date: 2012 Oct 17

Country of Publication:

United States

Language:

English

Subject:

59 BASIC BIOLOGICAL SCIENCES; 77 NANOSCIENCE AND NANOTECHNOLOGY