Lg Chem, Ltd

Seoul National University

Won Jong Kwon

Kwon Nam Sohn

In Young Kim

Mi Jin Lee

Kwang Hyun Yoo

Kil Sun Lee

Seung Bo Yang

Jin Yeong Lee

Ye Hoon Im

Eun Jeong Kim

Eui Yong Hwang

Sang Ho Kim

Dongwhan Lee

Jin Young Park

Ji Eun Kim

Won Jae Lee

Ki Seok Jang

Jung Hwan Kim

Se Ho Park

Byung Hun Oh

Yong Jin Bae

Su Jin Park

Byoung Bae Lee

Jae Seung Oh

Jae Duk Park

Shin Jung Choi

Ye Ji Lee

Gwang Hoon Jun

Sung Ho Yoon

Byeong-Hyeok Sohn

Seung Yong Chae

Jaehong Kim

Yong Ju Lee

Jin Kyu Lee

Je Young Kim

Kwonnam Sohn

Hyun Kil Nam

Junghwan Kim

Jung Woo Yoo

Young Hee Lim

Yeu Young Youn

Ju Han Kim

Sung-Ho Yoon

Se-Ho Park

Yu Ra Lee

Pum Suk Park

Hee Yong Park

Yong Jin Choe

Jae Hong Lee

Su Jin Mun

Ji Yeon Byeon

Yeo-Jin Jeon

Byung-Hee Choi

Hyun-Ho Lee

Yong-O Im

Sunmi Jin

Ji Won Suk

Min Og Kim

Yong Wook Kim

Eu Gene Oh

Provided a high-pressure homogenizer comprising a channel module comprising a microchannel through which an object for homogenization passes, wherein the microchannel is provided with a first flow channel and a second flow channel sequentially arranged along the direction through which the object passes, the first flow channel is provided with a plurality of first baffles disposed so as to partition the microchannel into a plurality of spaces, the second flow channel is provided with a plurality of second baffles disposed so as to partition the microchannel into a plurality of spaces, and at least one of the first baffles is provided to be positioned between two adjacent second baffles.

High-pressure homogenizer and method for manufacturing graphene using the same

A composition for detecting an acidic compound and a method using the same are discloses herein. In some embodiments, the method includes contacting a composition comprising a metal-organic hybrid structure formed by coordinate bond between a compound represented by the following Chemical Formula 1 or a salt thereof and a metal ion, with an acidic compound to be detected, wherein the composition is in the form of a metallogel prior to contact with the acidic compound, and detecting the acidic compound based on the transition of the composition from the form of a metallogel to a liquid phase. In some embodiments, detection of the acidic compound can be visually confirmed by phase transformation of the composition from a metallogel to a liquid phase.

Composition for detecting acidic compound

The present invention relates to a peeling device of sheet material for peeling off graphite, and the peeling device of sheet material according to the present invention is characterized in that a specific microchannel is used to apply a shear force required to peel off graphite, and simultaneously, graphene itself is not ground and the discharge flow rate of the graphene dispersion increases to increase graphene preparation efficiency.

Peeling device of sheet material including optimized outlet

The present invention relates to a polymer-graphene composite, in which a polymer has been introduced onto the surface of graphene while maintaining the structural features and mechanical properties of the graphene, thereby realizing an excellent dispersibility in an organic solvent, a method for preparing the same, and a polymer-graphene composite composition using the same.

Polymer-graphene composite, method for preparing same, and polymer-graphene composite composition using same

The present invention relates to a method for preparing graphene using a novel block copolymer. The present invention has features that, by using the block copolymer to mediate graphene that is hydrophobic and a solvent of a feed solution that is hydrophilic, the exfoliation efficiency of graphene as well as the dispersion stability thereof can be increased during high-pressure homogenization.

Block copolymer, and method for preparing graphene using same

The present invention relates to a carbon nanotube fiber and methods for preparing the same. In one embodiment, a method for preparing a carbon nanotube fiber comprises reacting a carbon source in the presence of a catalyst and a catalytic activator to form carbon nanotube aggregates, contacting the carbon nanotube aggregates with graphene oxide, and forming the carbon nanotube aggregates in contact with the graphene oxide into a carbon nanotube fiber.

Method for preparing carbon nanotube fiber and carbon nanotube fiber prepared thereby

The present invention provides graphene in which a polymer having a functional group capable of improving the dispersibility of graphene is bonded to the surface of the graphene. The present invention also provides a method for preparing the graphene described above.

Polymer grafted graphene and method for preparation thereof

The present invention relates to a method for preparing a functionalized graphene. The method for preparing a functionalized graphene according to the present invention can functionalize graphene by a simple method and does not use any other substance other than graphene and a salt containing a double bond, thereby enabling functionalization of graphene while exhibiting characteristics inherent to graphene.

Method for preparing functionalized graphene

The present invention relates to a conducting material composition which is allowed to provide an electrode having a higher content of uniformly dispersed carbon nanotubes, thereby providing a lithium rechargeable batteryelectrode having more improved electrical characteristics and life characteristics, a slurry composition for forming a lithium rechargeable batteryelectrode using the same, and a lithium rechargeable battery. The conducting material composition includes carbon nanotube; and a dispersing agent including a plurality of polyaromatic hydrocarbon oxides, in which the dispersing agent contains the polyaromatic hydrocarbon oxides having a molecular weight of 300 to 1000 in an amount of 60% by weight or more.

Conducting material composition, slurry composition for forming electrode of lithium rechargeable battery and lithium rechargeable battery using the same

Block copolymer, and method for preparing graphene using the same

The present invention relates to a method of producing hollow carbon capsules which can simply and effectively produce hollow carbon capsule by using polymer particles as soft templates and using a spray-drying method.

Method for producing hollow carbon capsules

Provided are a porous silicon-carbon composite, which includes a core including a plurality of active particles, a conductive material formed on at least a portion of surfaces of the active particles, first pores, and second pores, and a first shell layer which is coated on the core and includes graphene, wherein the active particles include a plurality of silicon particles, silicon oxide particles, or a combination thereof, the first pores are present in the core and are formed by agglomeration of the plurality of active particles, and the second pores are irregularly dispersed and present in the core, has an average particle diameter smaller than an average particle diameter of the active particles, and are spherical, a method of manufacturing the same, and a negative electrode and a lithium secondary battery including the porous silicon-carbon composite.

Graphene-coated porous silicon-carbon composite and method of manufacturing the same

The present invention relates to a high pressure homogenizer and a method for manufacturing graphene using the same, and according to one aspect of the present invention, there is provided a high pressure homogenizer comprising a channel module which comprises a microchannel through which an object for homogenization passes, wherein the channel module comprises at least one baffle disposed so as to partition the microchannel into a plurality of spaces and the baffle is provided so as to partition the microchannel into two spaces along the width direction or the height direction.

High pressure homogenizer and method for manufacturing graphene using the same

The present invention relates to a method for preparing a magnetic iron oxide-graphene composite, a magnetic iron oxide-graphene composite prepared thereby and a composition for electromagnetic wave shielding including the same, and since graphene is prepared from a stage 1-GIC using FeCl, magnetic particles in the form of FeOare naturally formed on the surface of graphene during the preparation process. In addition, a magnetic material is formed on the surface of graphene while the defects of graphene are minimized, and thus the magnetic iron oxide-graphene composite prepared according to the present invention can be useful as an electromagnetic wave absorber.

Method for preparing magnetic iron oxide-graphene composite

Growing community of inventors

Daejeon, South Korea

Won Jong Kwon