Two-dimensional circular platinum nanodendrites (~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 pre-formed seeds. The nanodendrites exhibit improved performance toward the oxygen reduction reaction and methanol oxidation reaction compared with platinum black.

中文翻译：

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二维圆形铂纳米树枝晶对有效的氧还原反应和甲醇氧化反应

在嵌段共聚物和预形成的种子存在下，通过用抗坏血酸化学还原铂络合物，合成了二维圆形铂纳米树枝晶（〜13 nm厚，直径最大138.8 nm）。与铂黑相比，纳米树枝晶对氧还原反应和甲醇氧化反应表现出改进的性能。