Korea Institute of Science and Technology

Hyundai Motor Company

Snu Rdb Foundation

Kug-Seung Lee

Hyoung-Juhn Kim

Jong Hyun Jang

Sung Jong Yoo

Dirk Henkensmeier

Eun Ae Cho

Yung-Eun Sung

Jae Seung Lee

Suk Woo Nam

Tae Hoon Lim

Hee-Young Park

Suk-Woo Nam

Hyung Chul Ham

Nak Hyun Kwon

Tae-Hoon Lim

Inchul Hwang

Soo-Kil Kim

Tae-Yeol Jeon

Yong-Hun Cho

The present disclosure relates to a PtAu nanoparticle catalyst heat-treated in the presence of carbon monoxide (CO) and a method for preparing same. Since the PtAunanoparticle catalyst heat-treated under CO atmosphere has high Pt surface area and superior oxygen reduction reaction (ORR) activity, a high-efficiency, high-quality fuel cell can be achieved by applying the catalyst to a fuel cell.

PtAu nanoparticle catalyst heat-treated in the presence of CO and method for manufacturing the same

Disclosed are a method and an apparatus for an intact evaluation of the unit cells in a fuel cell stack. Since the degradation of the unit cells can be detected intactly, i.e. without disassembly of the stack, the time required for the detection and analysis thereof can be greatly reduced.

Intact method of evaluating unit cells in a fuel cell stack and a device using the same

The present invention provides a method of synthesizing a nano-sized transition metal catalyst on a carbon support, including dissolving a stabilizer in ethanol thus preparing a mixture solution, adding a support to the mixture solution thus preparing a dispersion solution, dissolving a transition metal precursor in ethanol thus preparing a precursor solution, mixing the precursor solution with the dispersion solution with stirring, and then performing reduction, thus preparing the nano-sized transition metal catalyst. This method enables the synthesis of transition metal nanoparticles supported on carbon powder having a narrow particle size distribution and a wide degree of dispersion through a simple process, and is thus usefully applied to the formation of an electrode material or the like of a fuel cell.

Method of preparing nano-sized catalyst on carbon support

Growing community of inventors

Gyeongsangbuk-do, South Korea

Kug-Seung Lee