铜基板法制备纳米碳纤维薄膜的研究

Research of carbon nanofiber films synthesized on copper substrate

以乙炔(C2H2)作为碳源,采用化学气相沉积法(CVD)在经过草酸溶液腐蚀的铜基板表面制备出纳米碳纤维薄膜。采用扫描电子显微镜(SEM)和X射线粉末衍射仪(XRD)对产物进行结构与形貌表征,并对碳纤维薄膜进行其在基板上的附着性测试。结果表明,草酸腐蚀时间、化学气相沉积反应时间的变化等因素对纳米碳纤维薄膜的生长与形貌有一定影响。在反应温度为350℃时,铜基板表面制备出了一层均匀的纳米碳纤维薄膜,纤维直径为300~400 nm,薄膜的厚度为20~30μm。制备的纳米碳纤维薄膜对基板有良好的附着性。

Carbon nanofiber( CNF) films were synthesized on the copper sheet etched by oxalic acid solution using acetylene as carbon source in chemical vapor deposition( CVD). The products were characterized by scanning electron microscope( SEM) and X-ray diffraction( XRD). The attachment of the carbon layer was assessed. The results indicated that the etching time and reaction time have certain influence the growth of CNF films. It was observed that a uniform CNF films with a thickness of 20 ~ 30 μm was synthesized at 350 ℃. The diameters of the synthesized CNFs were 300 ~ 400 nm. The obtained CNF films exhibited good attachment with the substrate.