Bubbles Clear Fouled Electrodes

LondonElectrode fouling blocks hydrogen scale-up; oxygen bubbles fix it.

Amine oxidation deposits solids that poison electrodes; the team used byproduct oxygen bubbles to continuously scrub the surface clean.

The prototype held 200 mA/cm² for 40 hours — the current density industrial hydrogen electrolyzers require, the study found.

Sources: Nature