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Title: Charge transfer mediator based systems for electrocatalytic oxygen reduction

Disclosed are systems for the electrocatalytic reduction of oxygen, having redox mediator/redox catalyst pairs and an electrolyte solution in contact with an electrode. The redox mediator is included in the electrolyte solution, and the redox catalyst may be included in the electrolyte solution, or alternatively, may be in contact with the electrolyte solution. In one form a cobalt redox catalyst is used with a quinone redox mediator. In another form a nitrogen oxide redox catalyst is used with a nitroxyl type redox mediator. The systems can be used in electrochemical cells wherein neither the anode nor the cathode comprise an expensive metal such as platinum.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1371702
Assignee:
WISCONSIN ALUMNI RESEARCH FOUNDATION PNNL
Patent Number(s):
9,711,818
Application Number:
14/657,531
Contract Number:
AC05-76RL01830
Resource Relation:
Patent File Date: 2015 Mar 13
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Works referenced in this record:

Redox Fuel Cell
patent-application, November 2010