新型氧化铁催化半导体硅纳米线上碳纳米管的形成

Novel Iron-oxide Catalyzed CNT Formation on Semiconductor Silicon Nanowire.

作者信息

Adam Tijjani, U Hashim

机构信息

Institute of Nano Electronic Engineering (INEE), Universiti Malaysia Perlis (UniMAP), 01000 Kangar, Perlis, Malaysia.

出版信息

Curr Nanosci. 2014 Oct;10(5):695-699. doi: 10.2174/1573413710666140701184953.

DOI:10.2174/1573413710666140701184953

PMID:25237290

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4161198/

Abstract

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.

摘要

将硝酸铁九水合物（Fe(NO₃)₃·9H₂O）水溶液与氧化镁（MgO）混合并沉积在硅纳米线（SiNWs）上，通过将Fe₃O₄/MgO催化剂的摩尔比设定为0.15:9.85并在600°C下制备的碳纳米管（CNT），其直径在15.23至90nm之间，且碳纳米管具有高密度分布，而那些摩尔比设定为0.45:9.55并在730°C下制备的碳纳米管直径为100至230nm。紫外/可见/近红外光谱仪和傅里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。紫外/可见/近红外光谱、傅里叶变换红外光谱和场发射扫描电子显微镜图像证实了直径在15 - 230nm之间的硅-碳纳米管结构的存在。因此，该研究展示了一种通过氧化铁催化合成形成硅-碳纳米管复合纳米线的经济有效方法。