Decoration of single-walled carbon nanotubes with Pt nanoparticles from an organometallic precursor
Por:
Ramírez-Meneses E., Montiel-Palma V., Chávez-Herrera V.H., Reyes-Gasga J.
Publicada:
1 may 2011
Resumen:
Carbon nanotubes (CNTs) are nanomaterials of high interest due to their unique structural, electrical, and mechanical properties. Carbon materials have been widely employed to support metallic nanoparticles for catalysis and electrochemical applications. In this work, we investigated the synthesis of platinum nanoparticles generated from the complex Pt-2(dba)(3) (tris(dibenzylideneacetone) diplatinum) and stabilized with a long alkyl chain amine, hexadecylamine (HDA) and supported on functionalized single-walled carbon nanotubes (SWCNTs). High resolution transmission electron microscopy (HRTEM) studies revealed isolated Pt nanoparticles (2-3 nm) on SWCNTs. Powder X-ray diffraction (XRD) was used to assess the structure of Pt nanoparticles dispersed on SWCNTs assigned to Pt face-centered cubic (fcc). Additionally, infrared Fourier transform spectroscopy confirmed the presence of the stabilizer at the surface of the Pt nanoparticles even after the purification step and functional groups
Filiaciones:
Ramírez-Meneses E.:
Departamento de Ingeniería y Ciencias Químicas, Universidad Iberoamericana, Ciudad de México, Prolongación Paseo de la Reforma 880, Lomas de Santa Fe C.P. 01219, Mexico
Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, CICATA-IPN Unidad Altamira, Carretera Tampico-Puerto Industrial, Altamira, Tamaulipas C.P. 89600, Mexico
Montiel-Palma V.:
Centro de Investigaciones Químicas, Universidad Autónoma Del Estado de Morelos, Av. Universidad 1001, Colonia Chamilpa, Cuernavaca, Morelos C.P. 62201, Mexico
Chávez-Herrera V.H.:
Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, CICATA-IPN Unidad Altamira, Carretera Tampico-Puerto Industrial, Altamira, Tamaulipas C.P. 89600, Mexico
Reyes-Gasga J.:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 04510, DF, Mexico
Instituto de Física, Universidad Nacional Autónoma de México, Ciudad Universitaria, D.F. C.P. 04510, Mexico
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