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Novel Iron-oxide Catalyzed CNT Formation on Semiconductor Silicon Nanowire.
Current Nanoscience ( IF 1.4 ) Pub Date : 2014-09-30 , DOI: 10.2174/1573413710666140701184953
Tijjani Adam 1 , Hashim U 1
Affiliation  

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.



中文翻译:

半导体硅纳米线上新型氧化铁催化碳纳米管形成。

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。

更新日期:2014-09-30
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