Porous Iron‐Nitrogen‐Carbon Electrocatalysts for Anion Exchange Membrane Fuel Cells (AEMFC)
نویسندگان
چکیده
High-performance platinum group metal-free (PGM-free) electrocatalysts were prepared from porous organic polymers (POPs) precursors with highly-porous structures and adjustable surface area. A resin phenol-melamine-based POP an iron salt used to synthesize Fe−N−C catalysts different contents (0.2–1.3 wt.%). Electrochemical spectroscopical characterization allowed us elucidate the effect of Fe content on material's structure, chemistry, electrocatalytic activity toward oxygen reduction reaction (ORR). The increase led a specific area decrease, preserving morphological formation highly-active catalytic sites, as indicated by X-ray photoelectron spectroscopy (XPS) analysis. rotating ring disk electrode experiments, performed at pH=13, confirmed high ORR both 0.5 (E1/2=0.84 V) 1.3 (E1/2=0.83 catalysts, which assembled cathode H2-fed anion exchange membrane fuel cells (AEMFC) equipped FAA-3-50 membrane, evidencing promising performance (0.5 Fe, maximum power density, Max PD=69 mA cm−2 PD=87 cm−2) further advancement prospects.
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ژورنال
عنوان ژورنال: ChemElectroChem
سال: 2023
ISSN: ['2196-0216']
DOI: https://doi.org/10.1002/celc.202201115