(399f) Metal Nitride-Type Cathode Catalysts for Electrocatalytic Ammonia Production
In the present study, single and bi-metallic nitrides containing Co, Mo and Fe were synthesized via different routes and characterized using XRD, XPS, XAFS, DRIFTS, RAMAN and temperature-programmed desorption (TPD) and reaction (TPRxn) techniques to study their bulk and surface properties. The electrocatalytic activity tests were performed in an SOFC-type reactor in which external electrical energy is provided to electrolyze water and enhance the flux of oxide ions to the anode side. The electrolyte used is yttria-stabilized zirconia (YSZ) sandwiched between two electrodes. Commercially available La0.8Sr0.2MnO3-YSZ is used as the anode, while an in-house developed metal nitride mixed with gold paste is used as the cathode material.
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