Aerosol-derived Ni1−xZnx electrocatalysts for direct hydrazinefuel cells
Literature Information
Ulises Martinez, Koichiro Asazawa, Barr Halevi, Akinbayowa Falase, Boris Kiefer, Alexey Serov, Monica Padilla, Tim Olson, Abhaya Datye, Hirohisa Tanaka, Plamen Atanassov
This article reports the synthesis and performance of unsupported Ni1−xZnx electrocatalysts for the oxidation of hydrazine in alkaline media. Characterization of these catalysts was achieved using XRD, SEM, and TEM to confirm phase compositions, crystal structures, and morphologies. High performance was observed for the α-Ni0.87Zn0.13 and β1-Ni0.50Zn0.50 electrocatalysts with an onset potential of −0.15 V (vs. RHE) and a mass activity of 4000–3800 A gcat−1 at 0.4 V (vs. RHE), respectively. Additionally, in situ IRRAS studies were conducted to understand the mechanism of oxidation. These results demonstrate the feasibility of Ni1−xZnx catalysts for direct hydrazine anionic fuel cells.
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