Abstract
Formic acid oxidation reaction (FAOR) was studied using different platinum-zeolites hybrid catalysts. The catalysts were prepared by addition of two different forms of the ZSM-5 zeolite (ZSM-5-H+ and ZSM-5-NH4+) to an ink containing Vulcan carbon support and Pt nanoparticles (NPs). TEM images demonstrate a proper mixture of the components in the ink and a good dispersion of the Pt NPs mainly over the carbon. Both zeolites (ZSM-5-NH4+ and ZSM-5-H+) are stable under electrochemical conditions for FAOR, but ZSM-5-NH4+ undergoes fast conversion into ZSM-5-H+ due to the exchange between the compensator cation in the zeolite and protons in solution.
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