Korea Institute of Energy Research

Dong-won Shin

Chang-Soo Kim

Tae-hyun Yang

Seok-hee Park

Gu-gon Park

Sung-dae Yim

Young-jun Sohn

Won-yong Lee

Seung-gon Kim

Min-jin Kim

Byung-chan Bae

Hwan-yeong Oh

Hye-jin Lee

Yoon-young Choi

Dong-chul Park

Eun-jik Lee

Hyo-june Lee

Seung-hee Woo

So-jeong Lee

The present disclosure is related to a method for preparing a gaseous- or liquid-nitridation treated core-shell catalyst and, more specifically, to a method for preparing a gaseous- or liquid-nitridation treated core-shell catalyst comprising steps of: nitridation-treating a transition metal precursor core and noble metal precursor shell particles in the presence of a gaseous nitrogen source; or forming a transition metal precursor core and noble metal precursor shell particles, by means of a liquid nitrogen source, and at the same time allowing the nitrogen source to bond with the transition metal precursor and thus allowing nitridation treatment. Therefore, the present disclosure allows a high nitrogen content in the core and thus enables a prepared catalyst to have excellent durability, a small average particle size and high degree of dispersion and uniformity, and thus to be suitable for the fuel cell field.

Method for preparation gaseous-nitridation treated or liquid-nitridation treated core-shell catalyst

An apparatus and a method for manufacturing a continuous reactor type core-shell catalyst electrode, which may manufacture a large amount of continuous reactor type core-shell catalyst electrodes by improving coating efficiency of shell metal by using reaction chambers disposed in a circular shape or in a line are provided. The apparatus for manufacturing a continuous reactor type core-shell catalyst electrode includes: a main body; reaction chambers which are disposed plurally in a circular shape inside the main body, store reaction solution inside thereof, are equipped with a movable member and counter electrodes, and are coupled with a reference electrode to a lateral portion thereof; a palladium sheet which is moved by the movable member and immersed in the reaction solution as the movable member moves downward; a power supply which applies a voltage to the electrodes.

Apparatus and method for manufacturing continuous reactor type core-shell catalyst electrode

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Sejong-si, South Korea

Dong-won Shin