中文摘要：

以乙炔（C2H2）为碳源,铜溶胶为催化剂前躯体,采用化学气相沉积法（CVD）在黄铜基板上定向生长纳米碳纤维阵列。通过扫描电子显微镜（SEM）、X光衍射（XRD）和红外光谱（IR）等手段对产物的形貌、成分进行了表征。结果表明：在反应温度为400～500℃时,制备出了纤维直径为150～200 nm,长度为几到几十个微米的纳米碳纤维阵列;随着反应温度升高或者反应时间的延长,纤维长度增加,负载时间的延长有利于阵列形貌的生成。

英文摘要：

Aligned carbon nanofibers（CNFs） were synthesized by chemical vapor deposition（CVD） of acetylene using copper sol as catalyst precursor and acetylene as carbon source on brass substrate.The products were characterized by SEM,XRD and IR.It was observed that CNFs with diameter of 150—200 nm and length of a few to dozens of micrometers were synthesized between 400—500 ℃.The process parameters,such as reaction temperature,reaction time,and loading time had effects on the morphology of the products.The fiber length increased with reaction temperature and reaction time increasing.Further,extending of loading time was helpful to the aligned morphology.