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From an aqueous mixture of Ag(I)‐EDTA complex and Ni(II) nitrate, silver and nickel particles were co‐deposited on the surface of titanium substrates by the hydrothermal method using hydrazine hydrate as a reduction agent. The prepared titanium‐supported nano‐scale Ag and Ag‐Ni particles (nano Ag/Ti, nano Ag 86 Ni 14 /Ti, nano Ag 77 Ni 23 /Ti, and nano Ag 74 Ni 26 /Ti) exhibit nanoporous 3D network textures. Their electrocatalytic activity towards hydrazine oxidation in alkaline solutions was evaluated by cyclic voltammetry and chronoamperometry. The results show that the four samples present a low onset potential of ca. −0.60 V vs. SCE and considerably high and stable anodic current densities for hydrazine oxidation. Among them, the nano Ag 86 Ni 14 /Ti electrode exhibits the highest anodic current density towards hydrazine oxidation, showing an increment of electro‐active sites on the nano Ag 86 Ni 14 /Ti due to the addition of Ni to Ag particles.
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Yi et al. (2010) studied this question.
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