催化燃烧法制备碳纳米纤维球形团聚物

Ball-like carbon deposits synthesize by catalytic combustion

采用催化燃烧法制备碳纳米纤维球形团聚物，采用乙醇、丙酮分别作为碳源，采用硝酸镍、硝酸铁分别作为催化剂先体，采用铜片和铂丝分别作为基底。实验表征结果表明采用不同催化剂先体制备出的碳纳米纤维球形团聚物形貌相似，且都是由一维碳纳米纤维组成。最后对碳纳米纤维球形团聚物形成机理做了讨论。

In this paper, the synthesis of ball-like carbon materials by catalytic combustion technique was reported, in which acetone and ethanol were employed as carbon sources, nickel nitrate, and iron nitrate as catalytic precursor, and copper plate and platinum filament as the substrate, respectively. The characterizations of the products obtained were performed using scanning electron microscopy, high-resolution transmission electron microscopy and Raman spectroscopy. Carbon spheres have the similar morphology and all consist of carbon nanofibers. The formation mechanism of these spheres was discussed based on the feature of the experiment.