Enhanced stability and activity of Pt-Y alloy catalysts for electrocatalytic oxygen reduction

Sung Jong Yoo; Soo-Kil Kim; Tae-Yeol Jeon; Seung Jun Hwang; June-Gunn Lee; Seung-Cheol Lee; Kug-Seung Lee; Yong-Hun Cho; Yung-Eun Sung; Tae-Hoon Lim

doi:10.1039/c1cc12448j

Enhanced stability and activity of Pt-Y alloy catalysts for electrocatalytic oxygen reduction

Chem Commun (Camb). 2011 Nov 7;47(41):11414-6. doi: 10.1039/c1cc12448j. Epub 2011 May 31.

Authors

Sung Jong Yoo¹, Soo-Kil Kim, Tae-Yeol Jeon, Seung Jun Hwang, June-Gunn Lee, Seung-Cheol Lee, Kug-Seung Lee, Yong-Hun Cho, Yung-Eun Sung, Tae-Hoon Lim

Affiliation

¹ Fuel Cell Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seoul 136-791, Korea.

PMID: 21625678
DOI: 10.1039/c1cc12448j

Abstract

We report Pt-based alloys with early transition metals. Significant electrocatalysis occurs during oxygen reduction reaction (ORR) at the Pt-Y alloy electrodes, and the extent depends on the alloy composition. The Pt-Y alloy electrode activity is related to the d-band center position, and the lattice strain and stability for oxygen reduction reaction.