Two-dimensional circular platinum nanodendrites toward efficient oxygen reduction reaction and methanol oxidation reaction

Two-dimensional circular platinum nanodendrites (similar to 13 nm thick, up to 138.8 nm in diameter) were synthesized by chemical reduction of platinum complexes with ascorbic acid in the presence of block copolymer and preformed seeds. The nanodendrites exhibit improved performance toward the oxygen reduction reaction and methanol oxidation reaction compared with platinum black.