Synthesis and characterization of non-precious metal binary catalyst for oxygen reduction reaction in proton exchange membrane fuel cells

Hui Juan Zhang, Xianxia Yuan, Liangliang Sun, Junhe Yang, Zi Feng Ma, Zongping Shao

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

A promising non-precious metal FeCoTETA/C catalyst has been easily synthesized, by chelating Fe and Co with triethylenetetramine (TETA) in ethanol followed by pyrolyzing in an Ar atmosphere, as electrocatalyst for oxygen reduction reaction (ORR) in proton exchange membrane fuel cells (PEMFCs). The catalyst has been characterized with various physicochemical techniques as well as electrochemical analysis and single cell performance measurement. The results showed that nano-intermetallic FeCo particles and several types of N and O species are present on carbon matrix. The catalyst delivers better electrocatalytic activity toward ORR compared with CoTETA/C catalyst, the %H 2O 2 is about 10% with an electron-transfer number of around 3.8. The PEMFC with this catalyst in cathode reaches a maximum power density of 256 mW cm -2 and has a current density of 514 mA cm -2 at 500 mV.

Original languageEnglish
Pages (from-to)324-329
Number of pages6
JournalElectrochimica Acta
Volume77
DOIs
StatePublished - 30 Aug 2012

Keywords

  • FeCoTETA/C
  • Non-precious metal catalyst
  • Oxygen reduction reaction
  • Proton exchange membrane fuel cells (PEMFCs)

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