Impact of Air Exposure on the Performance of the MnO2 Cathode in Aqueous Zn Batteries
Source abstract
Abstract
We report that the electrolytic manganese dioxide cathode can exhibit an initial capacity near the theoretical capacity for two-electron transfer when the testing cells are exposed to air, much greater than the capacity when the cells are assembled under argon. We attribute the disparity to the following mechanism: MnO 2 catalyzes O 2 reduction to form an oxygen redox mediator that mediates the complete conversion of MnO 2 to Mn 2+ ions.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced battery technologies research · Advanced Battery Technologies Research · Supercapacitor Materials and Fabrication
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
Funding
Division of Chemical, Bioengineering, Environmental, and Transport Systems · Division of Materials Research
References (15)
Show source-provided references
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