Magnesium (Mg) dissolution is distinct from other engineering metals, as Mg can support
cathodic hydrogen evolution on its surface during anodic polarisation. The phenomenon of
cathodic hydrogen evolution upon anodically polarised Mg is characterised by the rate of the
hydrogen evolution reaction (HER) increasing with anodic polarisation, a phenomenon
called the negative different effect (NDE). Mg has a tendency to aggressively corrode in
aqueous solutions, impairing its application as a durable engineering material or a …