公开(公告)号：US12214320B2

公开(公告)日：2025-02-04

申请号：US17763628

申请日：2020-09-24

Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Jungkyu Choi ,  Kwan-Young Lee ,  Sungwon Hong

IPC: B01D71/02 ,  B01D67/00 ,  B01D69/02 ,  B01D69/10

Abstract: The present invention relates to a separator membrane having a hierarchical structure, a production method therefor and a xylene separation method using same, and to: a separator membrane having a hierarchical structure comprising mesopores, the separator membrane having mesopores introduced inside a microporous zeolite separator membrane, thereby being thin, having less defects and exhibiting high xylene permeation and separation performance; a production method therefor; and a xylene separation method using same.

公开(公告)号：US20230256421A1

公开(公告)日：2023-08-17

申请号：US17968490

申请日：2022-10-18

Applicant: HYUNDAI MOTOR COMPANY ,  Korea University Research and Business Foundation ,  KIA CORPORATION

Inventor： Kwan-Young Lee ,  Dalyoung Yoon ,  Hyun Wook Jung ,  Haney Park ,  Eun Jun Lee ,  Hyoseong Woo

IPC: B01J23/75 ,  B01J23/10 ,  B01J23/72 ,  B01J35/00 ,  B01J37/03 ,  B01J37/02 ,  B01J37/08 ,  B01J37/10 ,  B01D53/94

CPC classification number: B01J23/75 ,  B01J23/10 ,  B01J23/72 ,  B01J35/0013 ,  B01J37/031 ,  B01J37/0221 ,  B01J37/0228 ,  B01J37/0242 ,  B01J37/0236 ,  B01J37/088 ,  B01J37/10 ,  B01D53/944 ,  B01D2255/20746 ,  B01D2255/2065 ,  B01D2255/20761

Abstract: Provided is a carbon monoxide and hydrocarbon oxidation catalyst that includes a core-shell nanoparticle including a cobalt (Co) nanoparticle core having a hexahedral shape, and a shell surrounding the cobalt nanoparticle core and including cerium oxide.

公开(公告)号：US20220152601A1

公开(公告)日：2022-05-19

申请号：US17356812

申请日：2021-06-24

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Kwan-Young Lee ,  Dalyoung Yoon ,  Jin Woo Choung ,  Jungkyu Choi ,  Eun Jun Lee ,  Yaeun Seo ,  Haney Park

IPC: B01J31/02 ,  B01J23/42 ,  B01J21/06 ,  B01J37/04 ,  B01J37/00 ,  B01J37/06 ,  B01J37/08 ,  B01J37/02 ,  B01J35/00 ,  B01J35/02 ,  B01D53/94

Abstract: The present disclosure provides a catalyst for reducing CO and HC which is a core-shell particle including a core and a shell surrounding the core, the core includes metal oxide nanoparticles and noble metal nanoparticles fixed to the metal oxide nanoparticles, and the shell includes zirconia (ZrO2), and a layer from which the metal oxide is removed between the core and the shell is included.

公开(公告)号：US20220072506A1

公开(公告)日：2022-03-10

申请号：US17526957

申请日：2021-11-15

Applicant: Korea University Research and Business Foundation

Inventor： Jungkyu Choi ,  Kwan-Young Lee ,  Eunhee Jang

IPC: B01J20/18 ,  C01B39/46 ,  B01J20/28 ,  B01J20/30 ,  B01D53/04 ,  B01D71/02 ,  B01D53/22 ,  B01D67/00

Abstract: The present invention relates to a method of fabricating an organic structure directing agent-free CHA type zeolite membrane and a membrane fabricated thereby, and more particularly to a method of fabricating a continuous CHA type zeolite membrane, which exhibits CO2/N2 and CO2/CH4 separation performances comparable with those of conventional membranes, in a cost-effective manner without a calcination process by hydrothermal synthesis using an alkali metal hydroxide without using an organic structure directing agent, and to a membrane fabricated thereby.

公开(公告)号：US10987656B2

公开(公告)日：2021-04-27

申请号：US15508227

申请日：2015-01-07

Applicant: Korea University Research and Business Foundation

Inventor： Kwan-Young Lee ,  Myung-gi Seo ,  Seongmin Kim ,  Ha Eun Jeong

IPC: B01J23/44 ,  B01J35/00 ,  B01J37/02 ,  B01J37/08 ,  B01J21/12 ,  C01B15/029 ,  B01J35/02 ,  B01J23/38 ,  B01J13/14 ,  B01J37/00

Abstract: This invention relates to core-shell nanoparticles having acid sites, a method of manufacturing the same, and a method of directly producing hydrogen peroxide using the same.