A phosphatized pseudo-core-shell Fe@Cu-P/C electrocatalyst for efficient hydrazine oxidation reaction

The development of efficient electrocatalyst is very important for hydrazine oxidation reaction (HzOR). Here, a series of phosphatized pseudo-core-shell electrocatalysts (Fe@Cu-P/C) is prepared by replacement method and phosphatized calcination process. The optimal HzOR electrocatalyst is explored by studying different phosphatized temperatures. The 300 °C-treated Fe@Cu-P/C presents higher electrocatalytic activity (45 mA·mg−1FeCu) and shows better stability (93.5%) compared to others. Additionally, to better understand the HzOR process, the effects of different concentrations, scan rates and temperatures are also investigated. The good HzOR performance of Fe@Cu-P/C electrocatalyst attributes to its combined advantages of Cu-P shell and Fe-core as well as strong synergistic interaction between them.