Highly durable and active non-precious air cathode catalyst for zinc air battery

  1. Get@NRC: Highly durable and active non-precious air cathode catalyst for zinc air battery (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/j.jpowsour.2010.12.047
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Journal titleJournal of Power Sources
Pages36733677; # of pages: 5
SubjectAccelerated degradation tests; Air cathode; Alkaline conditions; Cathode catalyst; Electrochemical stabilities; Half cells; Initial mass; Mass activity; Oxygen reduction reaction; Peak power densities; Precious metal catalysts; Pt/C catalysts; Single cells; Zinc air battery; Degradation; Electrocatalysts; Electrolytic reduction; Oxygen; Precious metals; Stability; Testing; Zinc; Platinum alloys
AbstractThe electrochemical stability of non-precious FeCo-EDA and commercial Pt/C cathode catalysts for zinc air battery have been compared using accelerated degradation test (ADT) in alkaline condition. Outstanding oxygen reduction reaction (ORR) stability of the FeCo-EDA catalyst was observed compared with the commercial Pt/C catalyst. The FeCo-EDA catalyst retained 80% of the initial mass activity for ORR whereas the commercial Pt/C catalyst retained only 32% of the initial mass activity after ADT. Additionally, the FeCo-EDA catalyst exhibited a nearly three times higher mass activity compared to that of the commercial Pt/C catalyst after ADT. Furthermore, single cell test of the FeCo-EDA and Pt/C catalysts was performed where both catalysts exhibited pseudolinear behaviour in the 12-500 mA cm-2 range. In addition, 67% higher peak power density was observed from the FeCo-EDA catalyst compared with commercial Pt/C. Based on the half cell and single cell tests the non-precious FeCo-EDA catalyst is a very promising ORR electrocatalyst for zinc air battery. © 2010 Elsevier B.V. All rights reserved.
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AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Fuel Cell Innovation (IFCI-IIPC)
Peer reviewedYes
NPARC number21271554
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Record identifier72591348-e060-404c-b543-016bef10feb9
Record created2014-03-24
Record modified2016-05-09
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