Korea Advanced Institute of Science and Technology

Toolgen Inc.

Dong-Ki Lee

Jeung-Ku Kang

Kyung-Min Choi

Jung-Hoon Choi

Jin-Soo Kim

Kyu-Sung Han

Yangsoon Lee

Jung-woo Lee

Weon-Ho Shin

Yeob Lee

Il Woo Ock

Hyung-Mo Jeong

Hang-Ah Park

Jung-Hyo Park

Disclosed is an energy storage device based on metal oxide nanocrystals resealed through lithiation, and a supercapacitor using the same. The energy storage device is fabricated by dispersing transition metal nanoparticles over a carbon-based support with a large specific surface area, and then, dispersing and resealing the nanoparticles over the support using lithium ions with strong reductive ability, so that the resealed metal particles are substantially particles dispersed and resealed over the support as particles having a size of less than 1 nanometer on the scale of atomic units. The supercapacitor is fabricated using the energy storage device. The energy storage device higher capacitance than before resealing of metal oxide. Since the resealed metal particles are those having a size of less than 1 nanometer on the scale of atomic units, interference between particles disappears to exhibit excellent cycle life characteristics of 100% maintained performance in even more than 100,000 cycles.

Energy storage device based on nanocrystals including metal oxide rescaled by lithiation and supercapacitor using the same

A semiconductor of which a substance such as a semiconductor photocatalyst is uniformly coated on the surface thereof with a graphitic carbon film and a method of fabricating the same are disclosed. According to the inventive method, a graphitic carbon film having a thickness of 1 nm or less is uniformly formed on the surface of the semiconductor by performing hydrothermal synthesis and pyrolysis on glucose, so as to keep the original structure crystallinity of the semiconductor photocatalyst to be a support of the carbon film.

Semiconductor photocatalyst coated with graphitic carbon film and method of fabricating the same

The present invention relates to preparation of porous gallium (III) oxide [GaO] photocatalyst for production of hydrocarbons a porous gallium oxide photocatalyst for production of hydrocarbons, manufactured by the foregoing method, and a process of producing hydrocarbons using the porous gallium oxide photocatalyst for production of hydrocarbons, manufactured by the foregoing method.

Method of manufacturing a porous gallium (III) oxide photocatalyst for preparation of hydrocarbons

The disclosure describes artificial chimeric transcription factors that include at least one zinc finger domain and that can regulate cellular differentiation, for example, a neuronal cell phenotype or an osteoblast phenotype.

Zinc finger transcription factor differentiation proteins

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Daejeon, South Korea

Dong-Ki Lee