Citation: ZHANG Min, LI Jing-Jian, PAN Mu, XU Dong-Sheng. Catalytic Performance of Pt Nanowire Arrays for Oxygen Reduction[J]. Acta Physico-Chimica Sinica, ;2011, 27(07): 1685-1688. doi: 10.3866/PKU.WHXB20110726 shu

Catalytic Performance of Pt Nanowire Arrays for Oxygen Reduction

  • Received Date: 15 April 2011
    Available Online: 30 May 2011

    Fund Project: 武汉理工大学材料复合新技术国家重点实验室自主创新研究基金, 国家自然科学基金(21073007, 50821061) (21073007, 50821061)国家重点基础研究发展计划项目(973) (2007CB936201)资助 (973) (2007CB936201)

  • Platinum nanowire arrays (Pt NWs) catalyst was fabricated by electrodepositing with anodic aluminum oxide (AAO) as a template. The morphology and oxygen reduction reaction (ORR) electrocatalytic properties of the as-prepared platinum nanowire array catalysts were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and electrochemical measurements. The cyclic voltammetry (CV) showed that the specific electrochemical surface area (ECSA) of the Pt NWs was much higher than the geometric area. The half wave potential in the oxygen reduction reaction curves of the Pt NWs was more positive than that of Pt/C from the rotating disk electrode (RDE) measurements. Moreover, Pt NWs catalysts give higher limiting diffusion current by comparison with that of conventional Pt/C catalyst.

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