Methanol Crossover

Methanol is water soluble and thus mobile in a hydrated membrane. Examinations of the most widely recognized polymer membrane material, Nafion, have distinguished that methanol can infiltrate sulphonic acid membranes. This exchange of methanol to the cathode, called methanol crossover, prompts leads to a significant loss in oxygen reduction performance at the cathode.
One of the major obstacles that currently prevent the utilizations of direct methanol fuel cells is the methanol crossover through the polymer-electrolyte membrane.
Methanol crossover is firmly identified with a few components including membrane structure and morphology, membrane thickness, and fuel component working conditions, for example, temperature, weight, and methanol