Chang Yu, Lye Mei Ling, Zeng Hua Chun
Langmuir. 2005 Apr 26;21(9):3746-8. doi: 10.1021/la050220w.
The present difficulties in synthesis of one-dimensional copper are short length, nonlinear morphology, polydispersivity, poor crystallinity, low yield, and process complexity. In this work, we demonstrate that high-quality ultralong copper nanowires (90-120 nm in diameter, 40-50 microm in length; aspect ratio >350-450) can be synthesized in large scale with a facile aqueous reduction route at low cost. The prepared copper nanowires can also be used as starting solid precursor for fabrication of polycrystalline oxide nanotubes via direct oxidation in air.
目前在一维铜合成方面存在的困难包括长度短、形态非线性、多分散性、结晶度差、产率低以及工艺复杂。在本工作中，我们证明了可以通过一种简便的水相还原路线，低成本大规模合成高质量的超长铜纳米线（直径90 - 120 nm，长度40 - 50微米；长径比>350 - 450）。所制备的铜纳米线还可作为起始固体前驱体，通过在空气中直接氧化来制备多晶氧化物纳米管。
