Korea Institute of Science and Technology

Gl Materials Inc.

Namgee Jung

Hyoung-Juhn Kim

Jong Hyun Jang

Sung Jong Yoo

Jin Young Kim

Suk Woo Nam

So Young Lee

Jonghee Han

Hyun Seo Park

Sung Pil Yoon

Sang Young Lee

Tae Hoon Lim

Hee-Young Park

Eun Ae Cho

Tae-Hoon Lim

Seok Keun Koh

Sang Hyun Ahn

Jaeyune Ryu

Jue-hyuk Jang

A catalyst containing a carbon support and a core-shell nanoparticle supported on the carbon support, wherein a core of the core-shell nanoparticle is cobalt metal not containing a heterogeneous element and the shell contains carbon. The catalyst for an oxygen reduction reaction of the present disclosure is a catalyst in which the cobalt core-carbon shell nanoparticle is supported on the carbon support through ligand stabilization and heat treatment. The catalyst can be synthesized to have high dispersibility. In particular, it can be used as an electrode catalyst of a cathode to improve the oxygen reduction activity and durability of a fuel cell operating under an alkaline atmosphere.

Catalyst comprising cobalt core and carbon shell for alkaline oxygen reduction and method for preparing the same

Provided is a catalyst for oxygen reduction reaction comprising an alloy comprising at least one selected from Pt, Pd and Ir supported on a carbon carrier functionalized with poly(N-isopropylacrylamide) (PNIPAM). The catalyst for oxygen reduction reaction has electronic ensemble effects by virtue of the carbon carrier functionalized with poly(N-isopropylacrylamide) (PNIPAM), and thus shows improved oxygen reduction activity and durability as compared to conventional catalysts supported on carbon.

Catalyst for oxygen reduction reaction and preparation method of the same

The present disclosure relates to a method and an apparatus for preparing nanosized metal or alloy nanoparticles by depositing metal or alloy nanoparticles with superior size uniformity on the surface of a powder as a base material by vacuum deposition and then dissolving or melting the base material using a solvent or heat. The method solves the problems of the existing expensive multi-step synthesis method based on chemical reduction and allows effective synthesis of metal or alloy nanoparticles with very uniform size and metal or alloy catalyst nanoparticles supported on carbon at low cost.

Process of preparing carbon-supported metal catalyst by physical deposition

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Seoul, South Korea

Namgee Jung