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abstract >> Proton Exchange Membrane Water Electrolysis (PEMWE) is one of
the most popular and widely used methods for hydrogen production. PEMWE
contributes to eco-friendly system via its energy storage system application,
hence making it environmentally friendly to use. However, its main drawback is
contamination of proton exchange membrane during water electrolysis. Existing
cation such as magnesium, calcium and the likes are the cause for membrane
contamination. As a result, the cation contamination give rise to degradation of
performance of electrolysis and the reverse electrolysis is effective method to remove cation.
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