An aqueous ferric nitrate nonahydrate (Fe(NO₃)₃.9H₂O) and magnesium oxide (MgO) were mixed and deposited on silicon nanowires (SiNWs), the carbon nanotubes (CNTs) formed by the concentration of Fe₃O₄/MgO catalysts with the mole ratio set at 0.15:9.85 and 600°C had diameter between 15.23 to 90nm with high-density distribution of CNT while those with the mole ratio set at 0.45:9.55 and 730°C had diameter of 100 to 230nm. The UV/Vis/NIR and FT-IR spectroscopes clearly confirmed the presence of the silicon-CNTs hybrid structure. UV/Vis/NIR, FT-IR spectra and FESEM images confirmed the silicon-CNT structure exists with diameters ranging between 15-230nm. Thus, the study demonstrated cost effective method of silicon-CNT composite nanowire formation via Iron-oxide Catalyze synthesis.

将九水硝酸铁 (Fe(NO ₃ ) ₃ .9H _{2 O) 和氧化镁 (MgO) 混合并沉积在硅纳米线 (SiNW) 上，通过浓缩 Fe 3} O ₄ /形成碳纳米管 (CNT)摩尔比为0.15:9.85、600℃的MgO催化剂，其直径在15.23~90nm之间，CNT分布密度较高；而摩尔比为0.45:9.55、730℃的MgO催化剂，直径为100~230nm。紫外/可见/近红外和傅立叶变换红外光谱仪清楚地证实了硅-碳纳米管混合结构的存在。UV/Vis/NIR、FT-IR 光谱和 FESEM 图像证实存在直径范围为 15-230nm 的硅-CNT 结构。因此，该研究证明了通过氧化铁催化合成形成硅-CNT复合纳米线的成本有效的方法。