金属氧化物氧还原催化剂的研究进展

It is important for developing high-performance sustainable energy devices to promote oxygen reduction reaction (ORR) of fuel cell cathode by replacing precious platinum (Pt) based electrocatalyst with cheap metal oxide material. However, the low intrinsic catalytic activity, limited active sites and poor mass transport performance of non-platinum materials still pose great challenges. Continuous optimization of materials and advances in nanotechnology have made it possible to design catalysts with optimized compositions and fine nanostructures, providing new opportunities to improve ORR performance at the molecular level. The progress in regulation of metal oxide catalysts is reviewed in this paper.