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Ag nanoparticles supported on nickel foam: a flexible 3D electrode for methanol electrocatalytic oxidation

机译：支撑在镍泡沫上的Ag纳米颗粒：用于甲醇电催化氧化的柔性3D电极

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摘要

Ag nanoparticles (NPs) were prepared on nickel foam (NF) electrode coated Nafion membranes (N-AgNPs/NF) using an ion-implantation method. NF is a flexible 3D electrode. The influence of the supporting material on both the morphology and the electrocatalytic activity of AgNPs for the electrocatalytic oxidation of methanol are investigated and compared with AgNPs on an indium tin oxide electrode (AgNPs/ITO). Scanning electron microscopy (SEM) data indicated that spherical monodispersed NPs were obtained on NF and ITO substrates with a size distribution in the range of 10 to 20 nm and 3 to 6 nm, respectively. The influence of the support material on the electrocatalytic activity is tested by means of cyclic voltammetry (CV) for the electrocatalytic oxidation of methanol in alkaline electrolytes. The N-AgNPs/NF electrode exhibited greater electrocatalytic activity than the AgNPs/ITO electrode for the electrocatalytic oxidation of methanol. Beneficial electrocatalytic activity is measured due to the interplay between support and AgNPs. The N-AgNPs/NF electrode has long-term stability for the electrocatalytic oxidation of methanol and possible applications in fuel cells.
机译：使用离子注入方法在镍泡沫（NF）电极涂覆的Nafion膜（N-AgNPS / NF）上制备Ag纳米颗粒（NPS）。 NF是柔性3D电极。研究了支撑材料对甲醇电催化氧化的agnps的形态和电催化活性的影响，与氧化铟锡（AgNPS / ITO）的AgNP进行比较。扫描电子显微镜（SEM）数据表明，在NF和ITO基板上获得球形单分散的NP，其尺寸分布在10至20nm和3至6nm的范围内。通过循环伏安法（CV）对碱性电解质中甲醇的电催化氧化的循环伏安法（CV）测试载体材料对电催化活性的影响。 N-AgNP / NF电极表现出比甲醇电催化氧化的AgNPS / ITO电极更大的电催化活性。由于支持和agnps之间的相互作用，测量有益电催化活性。 N-AgNP / NF电极具有用于甲醇的电催化氧化和可能的燃料电池中可能的应用的长期稳定性。

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  • 来源
    《RSC Advances》 |2017年第63期|共7页
  • 作者

    Yu Yanan; Cheng Yu; Guo Meisong; Li Chenzhong; Hu Jingbo;

  • 作者单位

    Beijing Normal Univ Coll Chem Beijing 100875 Peoples R China;

    Beijing Normal Univ Coll Chem Beijing 100875 Peoples R China;

    Beijing Normal Univ Coll Chem Beijing 100875 Peoples R China;

    Florida Int Univ Dept Biomed Engn Nanobioengn Nanobioelect Lab 10555 West Flagler St Miami FL 33174 USA;

    Beijing Normal Univ Coll Chem Beijing 100875 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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