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Oxygen Reduction Reaction on Silver Catalysts in Alkaline Media: a Minireview
Author(s) -
Erikson Heiki,
Sarapuu Ave,
Tammeveski Kaido
Publication year - 2019
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201800913
Subject(s) - catalysis , oxygen reduction reaction , fuel cells , electrochemistry , oxygen reduction , platinum , cathode , proton exchange membrane fuel cell , materials science , oxygen , inorganic chemistry , chemistry , alkaline fuel cell , chemical engineering , ion exchange , nanotechnology , electrode , ion , organic chemistry , engineering
The development of efficient platinum‐free catalysts for electrocatalytic oxygen reduction reaction (ORR) is one of the main challenges in the fuel cell research. Silver‐based materials are highly active towards ORR in alkaline conditions and recent achievements in improving the performance of anion exchange membrane fuel cells (AEMFCs) have provoked many scientists to study these catalysts. This minireview is focused on the ORR performance of monometallic Ag catalysts and Ag‐based composites, the electrochemical oxygen reduction behaviour of Ag‐containing alloys is outside the scope of this review. The effect of the morphology of Ag nanostructures on catalysts’ ORR activity and pathway is discussed and the role of the support material is described. The performance of AEMFCs using Ag‐based cathode catalysts is also reviewed.