Development of ultra-low Pt alloy cathode catalyst for PEM fuel cells

Branko N. Popov, Xuguang Li, Gang Liu, Prabhu Ganesan, Hansung Kim, Bumwook Roh, Inchul Hwang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Two approaches are described for the synthesis of ultra-low platinum loading catalysts for polymer electrolyte membrane fuel cell (PEMFC). The first approach is the synthesis of a hybrid cathode catalyst (HCC) which combines a non-platinum carbon based composite catalyst (CCC) with active catalytic sites for oxygen reduction reaction (ORR) as a support and highly active Pt/Pt-alloy catalysts. The activity of HCC is found to be 1.3 times higher than that of Pt/C in the platinum loading range of 0.1-0.4 mg cm -2, while it is 2.6 times that of Pt/C at platinum loading of 0.04 mg cm -2. The goal of our second strategy is the development of activated graphitic carbon (AGC) supported Pt 3M 1 (M=nonprecious transition metal) catalyst (Pt 3M 1/AGC). The Pt 3M 1/AGC catalyst showed mass activity of 0.41 A mg Pt -1 and specific activity of 1023 μA/cm 2 at 0.9 V iR-free. Fuel cell performance evaluation under H 2/air exhibited a high current density performance of 1.45 A at 0.56 V iR-free.

Original languageEnglish
Title of host publicationPolymer Electrolyte Fuel Cells 11
Pages955-969
Number of pages15
Volume41
Edition1
DOIs
Publication statusPublished - 2011 Dec 1
Event11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting - Boston, MA, United States
Duration: 2011 Oct 92011 Oct 14

Other

Other11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting
CountryUnited States
CityBoston, MA
Period11/10/911/10/14

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Popov, B. N., Li, X., Liu, G., Ganesan, P., Kim, H., Roh, B., & Hwang, I. (2011). Development of ultra-low Pt alloy cathode catalyst for PEM fuel cells. In Polymer Electrolyte Fuel Cells 11 (1 ed., Vol. 41, pp. 955-969) https://doi.org/10.1149/1.3635629