resumo
Carbon nanostructures have emerged in recent decades as uniquely convenient materials for a number of technologies. Some of their envisaged applications require hybrid nanostructures that result from the coupling of semiconducting phases to the carbon materials. Here, we describe a new sonochemical method to decorate carbon-based materials (multiwalled carbon nanotubes, graphene oxide, and graphite flakes) with metal sulfide nanophases. In this research, we have used a Cd-II alkyldithiocarbamate complex as a single source to produce CdS nanophases that nucleate and grow over the carbon substrates. However, other metal sulfides can be produced by a similar methodology, which paves the way to a scalable method for the preparation of hybrid metal sulfide/carbon nanomaterials.
palavras-chave
QUANTUM DOTS; SOLVOTHERMAL SYNTHESIS; AQUEOUS DISPERSIONS; NANOTUBES; GRAPHENE; NANOCOMPOSITES; CDS; FUNCTIONALIZATION; NANOPARTICLES; OXIDATION
categoria
Chemistry
autores
Estrada, AC; Mendoza, E; Trindade, T
nossos autores
Ana Cristina Estrada
Investigador Júnior
Tito Trindade
Professor CatedráticoProjectos
agradecimentos
This research was financed by the FCT (Fundacao para a Ciencia e a Tecnologia) through the project NANO/NMed-SD/0140/2007. The authors thank for funding by the FEDER (Fundo Europeu de Desenvolvimento Regional) through COMPETE Programa Operacional Factores de Competitivade and national funding from FCT, in the frame of the project FCOMP-01-0124-FEDER-037271 (Ref. Pest-C/CTM/LA0011/2013). We thank the RNME (National Electronic Microscopy Network) for SEM/TEM facilities. The authors are very grateful to Dr. Carlos S (CEMUP), Dr. M. C. Neves, Dr. A. V. Girao, and MSc M. C. Azevedo for technical support. A. C. E. also thanks the FCT for a grant (SFRH/BPD/86780/2012).