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Prussian Blue/Multiwalled Carbon Nanotube Hybrids: Synthesis, Assembly and Electrochemical Behavior

机译:普鲁士蓝/多壁碳纳米管杂化物:合成,组装和电化学行为

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摘要

Prussian blue/carbon nanotube (PB/CNT) hybrids with excellent dispersibility in aqueous solutions were synthesized by adding CNTs to an acidic solution of Fe3+, [Fe(CN)(6)](3-) and KCl. Fourier transform infrared spectroscopy, UV-vis absorption spectroscopy and scanning electron microscopy were employed to confirm the formation of PB/CNT hybrids. The PB nanoparticles formed on the CNT surfaces exhibit a narrow size distribution and an average size of 40 nm. The present results demonstrate that the selective reduction of Fe3+ to Fe2+ by CNTs is the key step for PB/CNT hybrid formation. The subsequent fabrication of the PB/CNT hybrid films was achieved by layer-by-layer technique. The thus-prepared PB/CNT hybrid films exhibit electrocatalytic activity towards H2O2 reduction.
机译:通过将CNTs添加到Fe3 +,[Fe(CN)(6)](3-)和KCl的酸性溶液中,合成了在水溶液中具有优异分散性的普鲁士蓝/碳纳米管(PB / CNT)杂化物。傅里叶变换红外光谱,紫外可见吸收光谱和扫描电子显微镜被用来确认PB / CNT杂化物的形成。在CNT表面上形成的PB纳米颗粒呈现出狭窄的尺寸分布,平均尺寸为40 nm。目前的结果表明,CNTs将Fe3 +选择性还原为Fe2 +是PB / CNT杂化物形成的关键步骤。 PB / CNT杂化膜的后续制造是通过逐层技术实现的。如此制备的PB / CNT杂化膜表现出对H 2 O 2还原的电催化活性。

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