NiFe Alloy Electrocatalysts toward Efficient Alkaline Hydrogen Oxidation

We report the pyrolysis of NiFe-containing nanocrystals, which leads to 10.2 +/- 2.4 nm NiFe alloy particles embedded in carbon with an exceptional area specific exchange current density of 0.048 mA cm(Ni)(-2) toward the alkaline hydrogen oxidation reaction (HOR). The high activity primarily originates from optimized hydrogen and hydroxyl adsorption strength due to alloying effect between Ni and Fe.

Automated summary

The pyrolysis of NiFe-containing nanocrystals results in the formation of NiFe alloy particles embedded in carbon with a size of 10.2 +/- 2.4 nm. The alloy particles exhibit an exceptional area specific exchange current density of 0.048 mA cm(Ni)(-2) for the alkaline hydrogen oxidation reaction, which is attributed to the optimized hydrogen and hydroxyl adsorption strength due to the alloying effect between Ni and Fe.