Sangil Kim

US Patent:

20110220574, Sep 15, 2011

Filed:

May 29, 2009

Appl. No.:

12/995160

Inventors:

Olgica Bakajin - San Leandro CA, US
Aleksandr Noy - Belmont CA, US
Francesco Fornasiero - Oakland CA, US
Hyung Gyu Park - Zurich, CH
Jason K. Holt - San Francisco CA, US
Sangil Kim - Livermore CA, US

International Classification:

B01D 61/00
B01D 29/00
B82Y 99/00

US Classification:

210650, 21049701, 977902

Abstract:

Provided herein composition and methods for nanoporous membranes comprising single walled, double walled, or multi-walled carbon nanotubes embedded in a matrix material. Average pore size of the carbon nanotube can be 6 nm or less. 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.

US Patent:

20110253630, Oct 20, 2011

Filed:

Nov 29, 2010

Appl. No.:

12/955843

Inventors:

Olgica Bakajin - San Leandro CA, US
Aleksandr Noy - Belmont CA, US
Francesco Fornasiero - Oakland CA, US
Hyung Gyu Park - Zurich, CH
Sangil Kim - Livermore CA, US

International Classification:

B01D 71/02
C02F 1/44
B01D 67/00
B01D 61/00
B05D 5/00
B01D 71/06
B82Y 40/00
B82Y 30/00

US Classification:

210651, 427244, 21050027, 977742, 977842, 977962, 977750

Abstract:

Provided herein composition and methods for nanoporous membranes comprising single walled, double walled, or multi-walled carbon nanotubes embedded in a matrix material. Average pore size of the carbon nanotube can be 6 nm or less. 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.

US Patent:

20120241371, Sep 27, 2012

Filed:

Mar 23, 2012

Appl. No.:

13/428843

Inventors:

Ravindra Revanur - Fremont CA, US
Valentin Lulevich - Berkeley CA, US
Il Juhn Roh - San Ramon CA, US
Jennifer E. Klare - Berkeley CA, US
Sangil Kim - Pleasanton CA, US
Aleksandr Noy - San Carlos CA, US
Olgica Bakajin - San Leandro CA, US

International Classification:

B01D 69/12
B01D 69/10
B01D 67/00
B82Y 40/00
B82Y 99/00
B82Y 30/00

US Classification:

210488, 96 11, 264129, 977773, 977742, 977762, 977778, 977890

Abstract:

Membranes for fluid separation are disclosed. These membranes have a matrix layer sandwiched between an active layer and a porous support layer. The matrix layer includes 1-D nanoparticles that are vertically aligned in a porous polymer matrix, and which substantially extend through the matrix layer. The active layer provides species-specific transport, while the support layer provides mechanical support. A matrix layer of this type has favorable surface morphology for forming the active layer. Furthermore, the pores that form in the matrix layer tend to be smaller and more evenly distributed as a result of the presence of aligned 1-D nanoparticles. Improved performance of separation membranes of this type is attributed to these effects.

US Patent:

20200030740, Jan 30, 2020

Filed:

Oct 3, 2019

Appl. No.:

16/592532

Inventors:

- Livermore CA, US
Patrick Campbell - Oakland CA, US
Sangil Kim - Chicago IL, US
Matthew Merrill - Dublin CA, US

International Classification:

B01D 53/22
B01D 53/40
B01D 53/50
B01D 53/56
B01D 53/62
B01D 53/82
B01D 69/12
B01D 71/02
B01D 69/10
B01D 61/38

Abstract:

In one embodiment, a method for separating acidic gases from a gas mixture includes exposing the gas mixture to a separation membrane at an elevated temperature, where the separation membrane includes a porous support and at least one molten alkali metal hydroxide disposed within pores of the porous support.

US Patent:

20200030741, Jan 30, 2020

Filed:

Oct 3, 2019

Appl. No.:

16/592579

Inventors:

- Livermore CA, US
Patrick Campbell - Oakland CA, US
Sangil Kim - Chicago IL, US
Matthew Merrill - Dublin CA, US

International Classification:

B01D 53/22
B01D 53/40
B01D 53/50
B01D 53/56
B01D 53/62
B01D 53/82
B01D 69/12
B01D 71/02
B01D 69/10
B01D 61/38

Abstract:

In one embodiment, a separation membrane includes: a porous support structure, wherein the porous support structure comprises a system of continuous pores connecting an inlet of the separation membrane to an outlet of the separation membrane; and at least one alkali metal hydroxide disposed within pores of the porous support structure. Other aspects and embodiments of the disclosed inventive concepts will become apparent from the detailed description, which, when taken in conjunction with the drawings, illustrate by way of example the principles of the invention.

US Patent:

20170333834, Nov 23, 2017

Filed:

May 19, 2016

Appl. No.:

15/159681

Inventors:

- Livermore CA, US
Patrick Campbell - Oakland CA, US
Sangil Kim - Pleasanton CA, US
Matthew Merrill - Dublin CA, US

International Classification:

B01D 53/22
B01D 53/50
B01D 69/12
B01D 53/62
B01D 53/82
B01D 53/40
B01D 71/02
B01D 53/56

Abstract:

In one embodiment, a separation membrane includes: a porous support structure; and at least one alkali metal hydroxide disposed within pores of the porous support structure. In another embodiment, a method for separating acidic gases from a gas mixture includes exposing the gas mixture to a separation membrane at an elevated temperature, where the separation membrane includes a porous support and at least one molten alkali metal hydroxide disposed within pores of the porous support.

US Patent:

20170312725, Nov 2, 2017

Filed:

May 11, 2017

Appl. No.:

15/593189

Inventors:

- Livermore CA, US
Sergei Kucheyev - Oakland CA, US
Supakit Charnvanichborikarn - Livermore CA, US
Jeffrey D. Colvin - Pleasanton CA, US
Thomas E. Felter - Livermore CA, US
Sangil Kim - Pleasanton CA, US
Matthew Merrill - Dublin CA, US
Christine A. Orme - Oakland CA, US

Assignee:

LAWRENCE LIVERMORE NATIONAL SECURITY, LLC - Livermore CA

International Classification:

B01J 13/00

Abstract:

Described here is a metal-carbon composite, comprising (a) a porous three-dimensional scaffold comprising one or more of carbon nanotubes, graphene and graphene oxide, and (b) metal nanoparticles disposed on said porous scaffold, wherein the metal-carbon composite has a density of 1 g/cmor less, and wherein the metal nanoparticles account for 1 wt. % or more of the metal-carbon composite. Also described are methods for making the metal-carbon composite.

US Patent:

20170304778, Oct 26, 2017

Filed:

Apr 22, 2016

Appl. No.:

15/136801

Inventors:

- Livermore CA, US
Andreas C. Baumgaertel - Berkeley CA, US
Juergen Biener - San Leandro CA, US
Monika M. Biener - San Leandro CA, US
Sangil Kim - Pleasanton CA, US

International Classification:

B01D 67/00
B01D 67/00
B01D 61/02

Abstract:

According to one embodiment, a composition of matter includes: a first system of continuous voids arranged in a three-dimensional matrix; a second system of continuous voids arranged in the three-dimensional matrix; and a nanoporous barrier separating the first system of continuous voids and the second system of continuous voids. The first system of continuous voids and the second system of continuous voids are interwoven but independent so as to form a plurality of channels through the three-dimensional matrix. Corresponding methods for forming the composition of matter are also disclosed.