Korea Institute of Science and Technology

Seung Jun Hwang

Sung Jong Yoo

Tae Hoon Lim

Jong Hyun Jang

Suk Woo Nam

Soo K Kim

Suk-Woo Nam

Eun Ae Cho

Seong Ahn Hong

Soo-Kil Kim

Hyoung Juhn Kim

Disclosed are a platinum (Pt)-free, palladium (Pd)-yttrium (Y) alloy catalyst having superior oxygen reduction reaction activity and stability, a method for preparing the same, and a fuel cell including the catalyst. Since the Pt-free Pd&#x2014;Y catalyst is inexpensive, it may be usefully applicable for fuel cells, particularly polymer electrolyte membrane fuel cells.

Pd-Y alloy catalyst, method for preparing the same, and fuel cell comprising the catalyst

Provided are a method of preparing an electrocatalyst for fuel cells in a core-shell structure, an electrocatalyst for fuel cells having a core-shell structure, and a fuel cell including the electrocatalyst for fuel cells. The method may be useful in forming a core and a shell layer without performing a subsequent process such as chemical treatment or heat treatment and forming a core support in which core particles having a nanosize diameter are homogeneously supported, followed by selectively forming shell layers on surfaces of the core particles in the support. Also, the electrocatalyst for fuel cells has a high catalyst-supporting amount and excellent catalyst activity and electrochemical property.

Methods of preparing electrocatalysts for fuel cells in core-shell structure and electrocatalysts

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Seoul, South Korea

Seung Jun Hwang