Читать книгу Carbon Nanofibers - Группа авторов - Страница 60

In this chapter, carbon nanofibers (CNF) synthesized from plant parts and plant metabolites were investigated both scientifically and for practical applications. Apart from petroleum hydrocarbon-based precursors, natural precursors are accepted as an alternative to the synthesis of CNFs. In this chapter, factors for biogenic synthesis using the CVD system and the factors affecting it were touched upon. Yield of different unique morphologies of CNF that varied with precursors were presented. The impact of a wide range of temperatures on the quality and quantity of yield and effect of temperature on the performance of metal catalysts, such as deciding solubility of carbon, is believed to increase at higher temperatures, and the catalyst and catalyst support systems enhance the rate of growth of CNFs. The effect of carrier gas is not yet very conclusive. Hydrogen seems to have a marked influence on superior CNF synthesis. Despite numerous studies on CNFs being synthesized from natural precursors, there is still room for further understanding of the mechanism of CNF growth by CVD method. CNF composites are able to be applied as promising materials in many fields, such as electrical devices, electrode materials for batteries and supercapacitors, etc.