Nafion/lead oxide-manganese oxide combined catalyst for use as a highly efficient alkaline air electrode in zinc-air battery

Ting Hao Yang, Shanmuganathan Venkatesan, Chien Hung Lien, Jen Lin Chang, Jyh Myng Zen

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

In this study, we report the application of an inexpensive and easily prepared lead oxide-manganese oxide catalyst combined with Nafion (designated as Nf/PbMnOx) as a highly efficient air-cathode for a zinc-air battery. We verify the mechanistic study of the reduction of O2 for Nf/PbMnOx in alkaline aqueous solution using rotating ring/disk electrode voltammetry, and also an electrochemical approach using a wall-jet screen-printed ring disk electrode. The presence of Nf/PbMnOx shows great catalytic activity for the disproportionation reaction of HO 2- to O2 and OH- with an overall 4e- reduction of O2 in the first reduction reaction. The 4e- reduction of O2 was eventually achieved at the Nf/PbMnOx through evidence from the slope of Koutecky-Levich plots. With these inherent features, we then fabricated the zinc-air battery with the Nf/PbMnOx catalyst and examine the performance for a practical application with air cathodes.

Original languageEnglish
Pages (from-to)6205-6210
Number of pages6
JournalElectrochimica Acta
Volume56
Issue number17
DOIs
Publication statusPublished - 2011 Jul 1

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

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