采用低碳钢基体表面氧乙炔火焰法成功合成了纳米碳纤维,利用扫描电镜、激光拉曼光谱检测手段对其形貌和结构进行了表征.在氧乙炔火焰内焰区,经浓硝酸浸蚀的低碳钢表面沉积合成出中空管状、短而粗的纳米碳纤维:外径100～120nm,内径60～80nm.并初步探讨了其火焰合成的形成环境和生长过程.
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