Qian Cheng, Kim Franklin, Ma Lei, Tsui Frank, Yang Peidong, Liu Jie
Department of Chemistry, Duke University, Durham, North Carolina 27708, USA.
J Am Chem Soc. 2004 Feb 4;126(4):1195-8. doi: 10.1021/ja038401c.
A solution-phase route for the preparation of single-crystalline iron phosphide nanorods and nanowires is reported. We have shown that the mixture of trioctylphosphine oxide (TOPO) and trioctylphosphine (TOP), which are commonly used as the solvents for semiconductor nanocrystal synthesis, is not entirely inert. In the current process, TOP, serving as phosphor source, reacts with Fe precursors to form FeP nanostructures with large aspect ratios. In addition, the experimental results show that both TOP and TOPO are necessary for the formation of FeP nanowires and their ratio appears to control the morphology of the produced FeP structures. A possible growth mechanism is discussed.
报道了一种制备单晶磷化铁纳米棒和纳米线的溶液相方法。我们已经表明，常用于半导体纳米晶体合成的溶剂三辛基氧化膦（TOPO）和三辛基膦（TOP）的混合物并非完全惰性。在当前过程中，作为磷源的TOP与铁前驱体反应形成具有大纵横比的FeP纳米结构。此外，实验结果表明，TOP和TOPO对于FeP纳米线的形成都是必需的，并且它们的比例似乎控制着所产生的FeP结构的形态。讨论了一种可能的生长机制。
