Abstract
The simple and eco-friendly fabrication of non-noble metal catalyst is of great importance for sustainable energy production from alcohol. Herein, we report the new synthetic route for the preparation of nickel phosphate nanostructure through simple co-precipitation method. We studied the effect of annealing temperature ranging from 500°C to 1100°C on the electrocatalyst for ethanol electro-oxidation. In addition, we demonstrate that the resulting nickel phosphate materials can serve as efficient transition metal electrocatalyst for the ethanol oxidation under alkaline condition. In particular, the nickel phosphate annealed at 900°C (NP-900) affords higher current density of 1.2mAcm−2 at the low potential of 0.7mV, demonstrating great catalytic stability as well as good cyclability for 1000cycles giving about 92% faradaic yield towards the ethanol.
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