Ultra simple catalyst layer preparation for the growth of vertically aligned CNTs and CNT-based nanostructures

resumo

A simple and rapid route for the preparation of iron-based catalyst layers for CVD growth of carbon nanotubes is introduced. The catalyst was deposited by a microwave-assisted nonaqueous sol-gel process onto silicon wafers with or without an Al2O3 buffer layer and onto colloidal silica spheres. High quality vertically aligned carbon nanotube (VACNT) mats were grown on planar substrates. The versatility of the catalyst preparation is highlighted by the growth of CNTs onto non-planar surfaces such as the silica spheres.

palavras-chave

METAL-OXIDE NANOPARTICLES; CARBON NANOTUBE FORESTS; NONAQUEOUS SYNTHESIS; SPECTROSCOPY; ROUTE; SIZE

categoria

Chemistry; Crystallography

autores

Silva, RM; Pucci, A; Marichy, C; Mata, D; Ferro, MC; Silva, RF; Pinna, N

nossos autores

agradecimentos

Seung-Ho Yu from Seoul National University is acknowledged for XPS measurements and fruitful discussion, Igor Bdikin and A. J. S. Fernandes from the University of Aveiro for AFM and Raman spectra, respectively. This work was partially supported by the WCU (World Class University) program through the National Research Foundation (NRF) of Korea funded by the Ministry of Education, Science and Technology (R31-10013) and FCT projects (PTDC/CTM/098361/2008), (SFRH/BD/71453/2010), and (SFRH/BD/45177/2008).

Partilhe este projeto

Publicações similares

Usamos cookies para atividades de marketing e para lhe oferecer uma melhor experiência de navegação. Ao clicar em “Aceitar Cookies” você concorda com nossa política de cookies. Leia sobre como usamos cookies clicando em "Política de Privacidade e Cookies".