Author/Authors :
Liu، نويسنده , , Zhao-Qing and Xu، نويسنده , , Qi-Zhi and Wang، نويسنده , , Jiyu and Li، نويسنده , , Nan and Guo، نويسنده , , Shi-Heng and Su، نويسنده , , Yuzhi and Wang، نويسنده , , Hongjuan and Zhang، نويسنده , , Jian-Hua and Chen، نويسنده , , Shuang، نويسنده ,
Abstract :
In this work, we have successfully prepared urchin-like NiCo2O4 spheres via a facile hydrothermal method without any templates or surfactants. The as-prepared urchin-like NiCo2O4 spheres have uniform diameters of 6 μm with numerous small nanorods radially-grown from the center. Typical nanorods have diameters of 20–50 nm and lengths of 2–3 μm. Remarkably, urchin-like NiCo2O4 nanostructure as an alternative non-precious metal electrocatalyst for ORR exhibits catalytic performance and excellent cycling stability in alkaline environment.
Keywords :
NiCo2O4 , Spheres , Electrocatalysts , Oxygen reduction reaction
