Pyrolysis of hollow carbons on melted catalyst Original Research Article

Pyrolysis of hydrocarbon compounds on evaporated metal-based catalysts was used to produce carbon shells, hollow fibers and other hollow carbon forms. The carbon structures were investigated using transmission electron microscopy. A kinetic model for their formation and the mechanisms for obtaining different types of hollow carbons are proposed. In this model two competing processes, the linear growth rate of the carbon and the catalyst outlet rate relative to the growing carbon, determine the type of hollow carbon that forms.