Superior electrocatalytic performance of nitrogen-doped carbon-embedded Ni/NiO/NiB nanocrystals for urea oxidation

Ni/NiO/NiB anchored in a nitrogen-doped carbon matrix was prepared using a straightforward method. The excellent performance of Ni/NiO/NiB@NC-500 for UOR is ascribed to its porous structure, B doping and nitrogen-doped carbon substrate.