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首页> 外文期刊>Ionics >Electrochemical response of nitrogen-doped multi-walled carbon nanotubes decorated with gold and iridium nanoparticles toward ferrocyanide/ferricyanide redox system
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Electrochemical response of nitrogen-doped multi-walled carbon nanotubes decorated with gold and iridium nanoparticles toward ferrocyanide/ferricyanide redox system

机译：含金和铱纳米粒子修饰的掺氮多壁碳纳米管对亚铁氰化物/铁氰化物氧化还原体系的电化学响应

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摘要

Novel composite films consisting of nitrogen-doped multi-walled carbon nanotubes (N-MWCNTs) were fabricated by means of chemical vapor deposition technique and decorated with gold (AuNP) and iridium (IrNP) nanoparticles possessing diameters of 12.5 and 2.7 nm, respectively. The electrochemical responses of fabricated composite films, further denoted as N-MWCNTs/MNPs (M: Au and Ir), toward ferrocyanide/ferricyanide, [Fe(CN)(6)](3-/4-) redox couple was probed by means of cyclic voltammetry and electrochemical impedance spectroscopy techniques. The findings demonstrate that both N-MWCNT/MNP composite films exhibit greater electrochemical response and sensitivity toward [Fe(CN)(6)](3-/4-) compared to unmodified N-MWCNTs. The results verify that the N-MWCNT/MNP composite films are extremely promising for application in electrochemical sensing.
机译：通过化学气相沉积技术制备了由氮掺杂多壁碳纳米管（N-MWCNTs）组成的新型复合膜，并分别用直径为12.5nm和2.7nm的金（AuNP）和铱（IrNP）纳米颗粒装饰。制备的复合膜，进一步表示为N-MWCNTs / MNPs（M：Au和Ir）对亚铁氰化物/铁氰化物的电化学响应，通过[Fe（CN）（6）]（3- / 4-）氧化还原对进行了探测循环伏安法和电化学阻抗谱技术的手段。该发现表明，与未改性的N-MWCNT相比，两种N-MWCNT / MNP复合膜均表现出更大的电化学响应和对[Fe（CN）（6）]（3- / 4-）的敏感性。结果证明，N-MWCNT / MNP复合膜在电化学传感中具有广阔的应用前景。

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