Zirconium hydrogen phosphate as an additive in electrocatalytic layers for the oxygen evolution reaction in \PEM\ water electrolysis

By Agnieszka Zlotorowicz and Svein Sunde and Frode Seland
Published in International Journal of Hydrogen Energy NULL 2015

Abstract

For reasons of electrode integrity and durability it is desirable to add zirconium hydrogen phosphate to electrocatalytic layers in \PEM\ water electrolysis. Common synthesis methods are frequently associated with an accompanying addition of phosphoric acid. The presence of free phosphoric acid is known to be detrimental for catalytic activity of the common oxygen evolution catalysts. In this work composite electrocatalytic layers of iridium oxide, Nafion

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