Patent number: 11866597
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.
Type:
Grant
Filed:
February 11, 2021
Date of Patent:
January 9, 2024
Assignee:
Korea Institute of Science and Technology
Inventors:
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
Publication number: 20210269664
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.
Type:
Application
Filed:
February 11, 2021
Publication date:
September 2, 2021
Applicant:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
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