Back to results
US 8,007,573 B2Granted
Filter and associated method
AssigneeGeneral Electric Company
InventorsVishal Bansal, Benjamin Hale Winkler, Hieu Minh Duong, Tamaki Ryo
Life of this patent
Estimating the term…
Abstract
A filter includes a membrane having pores and that is air permeable. A nanoparticle precursor is dispersed throughout the pores, and the nanoparticle precursor is responsive to a stimulus to form a catalytically active nanoparticle. An associated method is also provided.
Claims22
A filter, comprising:
- a membrane having pores and that is air permeable, wherein the membrane comprises a fluorinated polyolefin;
- and
- a nanoparticle precursor dispersed throughout the pores, and the nanoparticle precursor is responsive to a stimulus to decompose and form a catalytically active nanoparticle, wherein the nanoparticle precursor comprises a metal alkoxide, a metal halide, or a metal carbamate;
- wherein the pores have an average pore diameter in a range of from about 10 nanometers to about 10 micrometers.
1 more element
A filter, comprising:
- a membrane having pores and that is air permeable, wherein the membrane comprises a fluorinated polyolefin;
- a nanoparticle precursor dispersed throughout the pores, wherein the nanoparticle precursor comprises a metal alkoxide, a metal halide, or a metal carbamate;
- and
- a plurality of nanoparticles dispersed throughout the pores, and the nanoparticles are catalytically active;
- wherein the nanoparticles comprise a decomposition product of the nanoparticle precursor;
- wherein the pores have an average pore diameter in a range of from about 10 nanometers to about 10 micrometers.
3 more elements
A method, comprising:
- impregnating a membrane having pores with a nanoparticle precursor, wherein the membrane comprises a fluorinated polyolefin and the nanoparticle precursor comprises a metal alkoxide, a metal halide, or a metal carbamate;
- exposing the membrane to a stimulus to decompose the nanoparticle precursor and form catalytically active nanoparticles dispersed throughout the pores;
- exposing a fluid stream having a contaminant to the membrane;
- infiltrating the fluid stream into the pores;
- and
- reacting the contaminant with the nanoparticles within the pores.
3 more elements
Dependencies are inferred from the claim text.