公开(公告)号：US12048132B2

公开(公告)日：2024-07-23

申请号：US17179332

申请日：2021-02-18

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  DREXEL UNIVERSITY

Inventor： Yury Gogotsi ,  Kanit Hantanasirisakul ,  Chong Min Koo ,  Aamir Iqbal ,  Soon Man Hong ,  Seon Joon Kim ,  Seung Sang Hwang ,  Kyung Youl Baek ,  Albert Lee ,  Sangho Cho

IPC: H05K9/00 ,  C01B21/082 ,  C23C16/30

CPC classification number: H05K9/0088 ,  C01B21/0828 ,  C23C16/30 ,  B32B2255/205 ,  C01P2004/04 ,  C01P2006/14 ,  C01P2006/40

Abstract: In an aspect, the present disclosure provides a heat-treated transition metal carbonitride MXene film annealed at high temperatures and a polymer composite comprising the same. In another aspect, the present disclosure provides a method for producing a heat-treated transition metal carbonitride MXene film comprising: obtaining a MXene aqueous solution containing dispersed 2-dimensional (2D) MXenes through an acid etching process; filtering the obtained MXene aqueous solution through a vacuum filtration process to produce a free-standing film; and annealing the produced free-standing film at high temperatures to obtain a heat-treated transition metal carbonitride MXene film. In still another aspect, the present disclosure provides an electromagnetic interference (EMI) shielding method comprising: superposing a coating comprising a heat-treated transition metal carbonitride MXene film on at least one surface of an object in a contact or non-contact manner.

公开(公告)号：US11492363B2

公开(公告)日：2022-11-08

申请号：US16395235

申请日：2019-04-26

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Youl Baek ,  Chong Min Koo ,  Soon Man Hong ,  Seung Sang Hwang ,  Sangho Cho ,  Jin Young Seo ,  Do Xuan Huy ,  Younghan Song ,  Sejin Kim ,  Changju Sung ,  Yeojin Ahn

IPC: B01J21/06 ,  C07F7/00 ,  A62D3/35 ,  A62D5/00 ,  A62D9/00 ,  A62B18/02 ,  B01J35/10 ,  B01J35/02 ,  B01J31/12 ,  A62B7/10 ,  A62D101/02

Abstract: The present invention relates to a method for preparing size-modulated UiO-66, which is achieved by modulating the concentrations of reactants, and a catalyst with improved activity of hydrolyzing chemical warfare agents prepared by the method.

公开(公告)号：US11917864B2

公开(公告)日：2024-02-27

申请号：US17698334

申请日：2022-03-18

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sangho Cho ,  Kyung Youl Baek

IPC: H01L27/32 ,  H10K59/122 ,  G06F1/16

CPC classification number: H10K59/122 ,  G06F1/1652 ,  G06F1/1656 ,  C09K2323/06

Abstract: Provided is a display device including a film structure having excellent flexibility and moisture infiltration prevention effects via a structure including a first polymer and a second polymer in which an inorganic compound penetrates into the first polymer. The display device may have excellent durability without causing problems such as peeling off of a sealing layer and moisture infiltration even after the display device is repeatedly stretched.

公开(公告)号：US11866597B2

公开(公告)日：2024-01-09

申请号：US17173268

申请日：2021-02-11

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chong Min Koo ,  In Sik In ,  Tae Yun Ko ,  Daesin Kim ,  Se Hyun Doo ,  Seon Joon Kim ,  Soon Man Hong ,  Seung Sang Hwang ,  Kyung Youl Baek ,  Albert Lee ,  Sangho Cho

IPC: C09D11/52 ,  C09D11/037 ,  C09D11/033 ,  H01B1/20 ,  C07F11/00 ,  C07F9/00 ,  C07F7/28 ,  H01B1/12 ,  C09D11/322 ,  C09D11/38 ,  C07C215/46 ,  C07C47/565

CPC classification number: C09D11/52 ,  C07C47/565 ,  C07C215/46 ,  C07F7/28 ,  C07F9/00 ,  C07F11/00 ,  C09D11/033 ,  C09D11/037 ,  C09D11/322 ,  C09D11/38 ,  H01B1/12 ,  H01B1/20

Abstract: The present disclosure relates to 2-dimensional MXenes surface-modified with catechol derivatives, a method for preparing the same, MXene organic ink including the same, and use thereof (e.g. flexible electrodes, conducive cohesive/adhesive materials, electromagnetic wave-shielding materials, flexible heaters, sensors, energy storage devices). Particularly, the simple, fast, and scalable surface-functionalization process of MXenes using catechol derivatives (e.g. ADOPA) organic ligands significantly improves the dispersion stability in various organic solvents (including ethanol, isopropyl alcohol, acetone and acetonitrile) and produces highly concentrated organic liquid crystals of various MXenes (including Ti2CTx, Nb2CTx, V2CTx, Mo2CTx, Ti3C2Tx, Ti3CNTx, Mo2TiC2Tx, and Mo2Ti2C3Tx). Such products offer excellent electrical conductivity, improved oxidation stability, excellent coating and adhesion abilities to various hydrophobic substrates, and composite processability with hydrophobic polymers. This finding will lead to further studies on the structures, properties, and physics of the organic MXene liquid crystals and their practical applications.

公开(公告)号：US11692079B2

公开(公告)日：2023-07-04

申请号：US16589143

申请日：2019-10-01

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sangho Cho ,  Chong Min Koo ,  Soon Man Hong ,  Seung Sang Hwang ,  Kyung Youl Baek ,  Daesin Kim ,  Hye-rim Kim

IPC: C08K9/04 ,  C08K3/14 ,  C09D11/03 ,  C09D11/033 ,  C09D11/52 ,  C08K9/06 ,  C09C3/00 ,  C09C3/08 ,  C09C3/10 ,  C09C1/36 ,  H05K9/00

CPC classification number: C08K9/04 ,  C08K3/14 ,  C08K9/06 ,  C09C1/3692 ,  C09C3/006 ,  C09C3/08 ,  C09C3/10 ,  C09D11/03 ,  C09D11/033 ,  C09D11/52 ,  H05K9/0081 ,  C01P2002/82 ,  C01P2002/86 ,  C01P2004/03 ,  C08K2201/001

Abstract: The present invention relates to a 2-dimensional MXene particle surface-modified with a functional group comprising a saturated or unsaturated hydrocarbon, a preparation method thereof, and a use thereof (e.g., a conductive film).

公开(公告)号：US11666896B2

公开(公告)日：2023-06-06

申请号：US17162639

申请日：2021-01-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Youl Baek ,  Soon Man Hong ,  Seung Sang Hwang ,  Chong Min Koo ,  Seon Joon Kim ,  Albert Lee ,  Jin Young Seo ,  Min Hyuk Choi ,  Yu Ri Lee ,  Sejin Kim ,  Do Xuan Huy ,  Que Thi Nguyen ,  Sangho Cho

IPC: B01J31/06 ,  B01J31/16 ,  A62D3/35 ,  B01J35/00 ,  B01J37/02 ,  B01J37/34

CPC classification number: B01J31/1691 ,  A62D3/35 ,  B01J31/06 ,  B01J35/0006 ,  B01J37/0215 ,  B01J37/343

Abstract: Provided are a catalyst composition with improved processability and chemical warfare agent degradation ability, a film composite manufactured by casting the same, and a preparation method thereof. Specifically, provided are a catalyst composition including a copolymer of a first polymer and a second polymer; and a metal-organic framework (MOF), and a film composite including the same, wherein processability and catalytic activity are improved.