Depositing metal e.g. tin or metalloid e.g. silicon on carbon nanotubes, comprises mixing carbon nanopowder with a precursor formed of alkali metals or metalloids, and continuously introducing the impregnated carbon nanotubes in a reactor

摘要

The process of depositing a metal or metalloid on carbon nanotubes (CNTs), comprises mixing carbon nanopowder with a precursor (14, 16) formed of alkali metals or metalloids for a predetermined time such that the CNT is impregnated with the precursor, continuously introducing the impregnated CNT in a reactor (10) under sweeping of a gas to obtain impregnated fluidized bed of CNT, and depositing metal or metalloid on the impregnated CNT powder by decomposition of precursor after heating the reactor. The deposition process is carried out at less than 1000[deg] C and an atmospheric pressure. The process of depositing a metal or metalloid on carbon nanotubes (CNTs), comprises mixing carbon nanopowder with a precursor (14, 16) formed of alkali metals or metalloids for a predetermined time such that the CNT is impregnated with the precursor, continuously introducing the impregnated CNT in a reactor (10) under sweeping of a gas to obtain impregnated fluidized bed of CNT, and depositing metal or metalloid on the impregnated CNT powder by decomposition of precursor after heating the reactor. The deposition process is carried out at less than 1000[deg] C and an atmospheric pressure. The impregnated CNTs are conditioned by a transport gas for introducing them in the reactor by heat. In a first phase that is corresponding to the period of heat of the reactor, the CNTs are swept using an inert gas. In a second phase that is when the internal temperature attains 850[deg] C, the arrival of nitrogen is closed and then a second gas is injected in the CNTs. An independent claim is included for a system for depositing a metal or metalloid on carbon nanotubes.