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通过ZnO模板辅助的电沉积方法设计和合成了Pt管中管阵列.作为一种具有利用率高、活性物质传输快的三维结构的电催化剂,Pt管中管阵列显示了高电化学活性面积(64.9 m~2/gPt).与Pt纳米管和商业Pt/C催化剂相比,Pt管中管阵列明显提高了甲醇氧化电催化活性和稳定性.另外,Pt管中管阵列也显示了优越的抗CO毒化能力.这个研究展示了高性能Pt基直接甲醇燃料电池电催化的一个重要进展.
The tube array of Pt tube was designed and synthesized by the ZnO template-assisted electrodeposition method.As a kind of electrocatalyst with high utilization rate and fast transport of active material, the tube array of Pt tube showed a high electrochemically active area 64.9 m 2 / g Pt.) Compared with Pt nanotubes and commercial Pt / C catalysts, the tube array in Pt tube significantly improved the electrocatalytic activity and stability of methanol oxidation. In addition, the tube array in Pt tube also showed superior Anti-CO poisoning ability.This study shows that a high-performance Pt-based direct methanol fuel cell electrocatalysis an important progress.