The oxygen reduction reaction has been the object of intensive research in an attempt to improve sluggish kinetics that limit performance renewable energy storage and utilization systems. Platinum or platinum bimetallic alloys are common choices as electrode material, but prohibitive costs hamper their use. Complex alloy materials, such high-entropy (HEAs), more generally, multiple principal co...

Highly durable and active CeO2 on biochar carbon (CeO2/BC) derived from Spirulina platensis microalgae synthesized by simple one-pot hydrothermal treatment further activated through pyrolysis approach. A spindle-shaped morphology of with predominant (111) facet was evidently observed X-ray diffraction patterns electron microscopy images. The structural features such as high specific surface are...