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首页> 外文期刊>RSC Advances >Ag nanoparticles supported on nickel foam: a flexible 3D electrode for methanol electrocatalytic oxidation
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Ag nanoparticles supported on nickel foam: a flexible 3D electrode for methanol electrocatalytic oxidation

机译：负载在泡沫镍上的银纳米颗粒：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：使用离子注入法在镍泡沫（NF）电极涂覆的Nafion膜（N-AgNPs / NF）上制备了Ag纳米颗粒（NP）。 NF是一种柔性3D电极。研究了载体材料对AgNPs的形态和电催化活性对甲醇电催化氧化的影响，并将其与铟锡氧化物电极（AgNPs / ITO）上的AgNPs进行了比较。扫描电子显微镜（SEM）数据表明，在NF和ITO基板上获得的球形单分散NP分别具有10至20？nm和3至6 nm的尺寸分布。通过循环伏安法（CV）测试载体材料对电催化活性的影响，以对碱性电解质中的甲醇进行电催化氧化。 N-AgNPs / NF电极对甲醇的电催化氧化表现出比AgNPs / ITO电极更大的电催化活性。由于载体和AgNP之间的相互作用，可以测量有益的电催化活性。 N-AgNPs / NF电极对甲醇的电催化氧化具有长期稳定性，并可能在燃料电池中应用。

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