Synthesis of the NTC/Ph3P/Co hybrid, by means of microwave-assisted synthesis
Abstract
In this work, a method based on microwave-assisted synthesis is presented for the incorporation of cobalt (Co) nanoparticles and triphenylphosphine (Ph₃P) molecules on the surface area of carbon nanotubes (CNT) for the synthesis of the hybrid NTC/ Ph₃P/Co. The use of microwaves at constant power allows the functionalization of the CNT area for the generation of –COOH and –OH groups with less aggressive acid treatments than conventional ones. This functionalization favors the incorporation of different molecules such as Ph₃P and can be carried out thermoreduction reactions for the nucleation of metal particles such as cobalt. The surface of the hybrids and their precursors were characterized by IR-ATR and RAMAN. The morphology of the hybrid was performed by scanning-transmission microscopy, and it was observed that Co forms a coating on the NTC with an average thickness of 4 nm, while the EDS analysis indicates a Co content of 12% and Ph₃P of the 3%.
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