Cryogels from Pt/γ-Fe2O3 and Pd/γ-Fe2O3 NPs as Promising Electrocatalysts for Ethanol Oxidation Reaction

Cryogels from noble metal NPs have proven to be highly efficient catalysts due their high specific surface area which increases the mass transfer channels and catalytic active sites. By using oxides as co-catalysts, costs of material can significantly reduced, while activity remain same or even improve synergetic effects. In this work, we synthesize different cryogel thin films supported on modified ITO substrates Pt, Pd nanoparticles (NPs), mixtures these metals with γ-Fe2O3 in a very low concentration (1 wt% metal). Structural elemental analysis samples are performed, along measurement activity. The electrocatalytic cryogels towards ethanol oxidation reaction (EOR) alkaline media was evaluated by means cyclic voltammetry. mixing Pt structure, observe increased tolerance against poisonous intermediates produced during EOR. Moreover, an increase EOR case 1 Pd/γ-Fe2O3 cryogel, making them promising materials for development direct fuel cells.