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Updated: Jul 8, 2025

Fabrication of VB2/Air Cells for Electrochemical Testing
Published on: August 5, 2013
Human Hemoglobin-Based Zinc-Air Battery in a Neutral Electrolyte
Valentín García-Caballero1, Sebastián Lorca2, Marta Villa-Moreno1
1Departamento de Química Física y Termodinámica Aplicada, Instituto Químico para la Energía y el Medioambiente, Universidad de Córdoba, E-14014 Córdoba, Spain.
Abstract:
The use of human hemoglobin (Hb) as a catalytic component of the air electrode in a primary zinc-air battery with a neutral electrolyte has been investigated. Three different electrode modifications, using the drop-casting method, with Hb and Nafion were first tested in a three-electrode cell, obtaining the best oxygen electroreduction (ORR) performance and long-term stability with a Hb plus Nafion (Hb-Nafion)-modified electrode. The latter Hb-Nafion-based air electrode provided a higher specific capacity and discharge time than the opposite order (Nafion-Hb).
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