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Title: Supported inorganic membranes

Abstract

Supported inorganic membranes capable of molecular sieving, and methods for their production, are provided. The subject membranes exhibit high flux and high selectivity. The subject membranes are substantially defect free and less than about 100 nm thick. The pores of the subject membranes have an average critical pore radius of less than about 5 .ANG., and have a narrow pore size distribution. The subject membranes are prepared by coating a porous substrate with a polymeric sol, preferably under conditions of low relative pressure of the liquid constituents of the sol. The coated substrate is dried and calcined to produce the subject supported membrane. Also provided are methods of derivatizing the surface of supported inorganic membranes with metal alkoxides. The subject membranes find use in a variety of applications, such as the separation of constituents of gaseous streams, as catalysts and catalyst supports, and the like.

Inventors:
 [1];  [1]
  1. (Albuquerque, NM)
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA
OSTI Identifier:
871655
Patent Number(s):
5772735
Assignee:
University of New Mexico (Albuquerque, NM); Sandia Natl Laboratories (Albuquerque, NM) SNL
DOE Contract Number:  
AC04-76
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
supported; inorganic; membranes; capable; molecular; sieving; methods; production; provided; subject; exhibit; flux; selectivity; substantially; defect; free; 100; nm; thick; pores; average; critical; pore; radius; ang; narrow; size; distribution; prepared; coating; porous; substrate; polymeric; sol; preferably; conditions; relative; pressure; liquid; constituents; coated; dried; calcined; produce; membrane; derivatizing; surface; metal; alkoxides; variety; applications; separation; gaseous; streams; catalysts; catalyst; supports; defect free; subject membranes; catalyst support; metal alkoxide; gaseous stream; size distribution; pore size; porous substrate; coated substrate; supported inorganic; molecular sieving; metal alkoxides; supported membrane; catalyst supports; membranes capable; inorganic membranes; gaseous streams; membranes exhibit; organic membrane; nm thick; substantially defect; /95/96/210/264/501/

Citation Formats

Sehgal, Rakesh, and Brinker, Charles Jeffrey. Supported inorganic membranes. United States: N. p., 1998. Web.
Sehgal, Rakesh, & Brinker, Charles Jeffrey. Supported inorganic membranes. United States.
Sehgal, Rakesh, and Brinker, Charles Jeffrey. Thu . "Supported inorganic membranes". United States. https://www.osti.gov/servlets/purl/871655.
@article{osti_871655,
title = {Supported inorganic membranes},
author = {Sehgal, Rakesh and Brinker, Charles Jeffrey},
abstractNote = {Supported inorganic membranes capable of molecular sieving, and methods for their production, are provided. The subject membranes exhibit high flux and high selectivity. The subject membranes are substantially defect free and less than about 100 nm thick. The pores of the subject membranes have an average critical pore radius of less than about 5 .ANG., and have a narrow pore size distribution. The subject membranes are prepared by coating a porous substrate with a polymeric sol, preferably under conditions of low relative pressure of the liquid constituents of the sol. The coated substrate is dried and calcined to produce the subject supported membrane. Also provided are methods of derivatizing the surface of supported inorganic membranes with metal alkoxides. The subject membranes find use in a variety of applications, such as the separation of constituents of gaseous streams, as catalysts and catalyst supports, and the like.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

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