MECHANISM OF CARBON NANOTUBE FORMATION IN THE ARC-DISCHARGE

2020-04-05 19:54:47

The model formation nanotube pitting

责任者: GAMALY, EG;EBBESEN, TW 单位: NEC RES INST INC,PRINCETON,NJ 08540. 来源出处: PHYSICAL REVIEW B, v 52, JUL 15 1995, p 2083- 2089 摘要: A model for carbon nanotube formation in the are discharge has been developed. The model is based on the physical properties of the are discharge plasma where the interplay of the two major components of the bimodal carbon velocity distribution (Maxwellian and directed) dominates the nanotube creation process in a zone near the cathode surface. The processes of seed structures and nanoparticles formation, termination, and restart of nanotube growth, and multishell tube formation are considered self-consistently. The proposed model can explain qualitatively most of the known experimental facts related to the nanotube formation. Comparison to experiments has been provided and some consequences of the model discussed. 关键词: ANISOTROPIC PITTING; CHLORIDE SOLUTIONS; PASSIVITY; PIT INITIATION; PIT MORPHOLOGY; PITTING POTENTIAL MORPHOLOGY; PITTING POTENTIAL; GROWTH