Local Potential Indicators for Alkaline Oxygen Electrodes (Supporting Information)

Ni, Ag, and Cu foil and microwire electrodes demonstrate brightness changes under applied potentials, functioning as optical potential indicators for alkaline oxygen electrodes. The supporting information dataset, authored by Nanako Nonaka and updated in April 2026, contains measurements from confocal optical microscopy in 1.0 and 8.0 mol dm−3 KOH solutions. This 2.5 MB PDF file details experiments exploring visualization of local potential distributions crucial for battery and fuel cell electrode design.

Use Cases

• Validate optical potential indicator materials based on brightness changes described for Ni, Ag, and Cu.
• Analyze electrode performance in different alkaline concentrations based on the 1.0 and 8.0 mol dm−3 KOH solution tests.
• Compare mass transport effects between foil and microwire electrode geometries as mentioned in the description.
• Study local potential distributions for oxygen evolution and reduction reactions within the specified potential regions.

Strengths

• Specific experimental conditions are documented, including electrode thickness (30 µm), diameter (50 µm), and KOH concentrations (1.0 and 8.0 mol dm−3).
• Clear application focus on bifunctional air electrodes for metal-air batteries and fuel cell cathodes.
• Data is shared under a permissive CC-BY-4.0 license.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is a 2.5 MB PDF, which may require extraction or manual digitization of tabular data.

Provenance

Source

figshare

Collection Method

Experimental measurements using a confocal optical microscope on metal electrodes in alkaline solutions.

Time Range

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Freshness

Last updated 2026-04-24 06:27:25; freshness should be verified.

Geography

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