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Growth of single-crystal magnetite nanowires from Fe3O4 nanoparticles in a surfactant-free hydrothermal process

机译:在无表面活性剂的水热过程中由Fe3O4纳米粒子生长单晶磁铁矿纳米线

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摘要

Single-crystal magnetite nanowires with average diameter of ca. 20 nm and length of up to several micrometers were prepared by a simple alkaline surfactant-free hydrothermal process. The crystallinity, purity, morphology, and structural features of the as-prepared magnetite nanowires were investigated by powder X-ray diffraction, transmission electron microscopy (TEM) and selected area electron diffraction. The composition and length of nanowires depends on the pH, with higher pH favoring longer nanowires composed entirely of Fe3O4. A mechanism for nanowire growth is proposed. (C) 2004 Elsevier Ltd. All rights reserved.
机译:单晶磁铁矿纳米线的平均直径约为通过简单的无碱表面活性剂水热法制备了20 nm,长度达几微米的材料。通过粉末X射线衍射,透射电子显微镜(TEM)和选择区域电子衍射研究了所制备的磁铁矿纳米线的结晶度,纯度,形态和结构特征。纳米线的组成和长度取决于pH值,较高的pH值有利于更长的完全由Fe3O4组成的纳米线。提出了纳米线生长的机制。 (C)2004 Elsevier Ltd.保留所有权利。

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