title: Synthesis of carbon nanotubes and nanospheres with controlled morphology using different catalyst precursors.
abstract: Carbon nanotubes and carbon nanospheres have been selectively synthesized in a polypropylene matrix by simply altering the catalyst precursor. When a mixture of ferrocene and cobalt (II) acetate was added to the polypropylene, well-dispersed carbon nanotubes were produced. When only cobalt (II) acetate was added, however, carbon nanospheres were obtained. In a third case, when the added catalyst precursor was ferrocene, no graphitic carbon was formed.
authors.affiliation: Functional Nanomaterials Laboratory and Key Laboratory of Organic Optoelectronic Functional Materials and Molecular Engineering, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences (CAS), Zhongguancun Beiyitiao 2, Haidianqu, Beijing 100080, People's Republic of China. Graduate University of Chinese Academy of Sciences, Beijing 100864, People's Republic of China.
authors.forename: Xuecheng
authors.initials: X
authors.lastname: Chen
authors.forename: Hang
authors.initials: H
authors.lastname: Wang
authors.forename: Junhui
authors.initials: J
authors.lastname: He