Performance tests with the new catalyst applied to seawater cell electrodes showed that its performance was on par with traditional platinum catalysts. Importantly, the overvoltage was lower than that of platinum (Pt/C) catalysts.
Affordable catalyst
Seawater batteries, using abundant seawater as the cathode material, offer economic benefits but suffer from slow kinetics and high overpotential, limiting efficiency. Electrocatalysts are essential for improving performance. While precious metals like platinum have been traditionally used as catalysts, their high cost limits their scalability.