Structural study of Pt<inf>x</inf>-Pd<inf>1-x</inf> nanoparticles supported on silica by high resolution electron microscopy

N. Castillo, L. Diaz Barriga, R. Pérez, A. Conde

Research output: Contribution to conferencePaper

Abstract

Ptx-Pd(1-x) nanoparticles supported on amorphous silica (SiO2) were prepared by wetness impregnation techniques with choroplatinic acid (H2PtCl6) and palladium chloride (PdCl4) with different concentrations of Pt and Pd at about 1% in overall metallic weight. The structural and physic characterization of these samples were carried out by BET Surface Area, X-Rays Diffraction (XRD), Transmission Electron Microscopy (TEM), attach with X-Ray and Energy Dispersive Spectroscopy (XEDS). In this work, we observed the distribution of Pt and Pd in nanoparticles. By XRD Ptx-Pd(1-x) Nanoparticles are made of a single solid solution of Pt and Pd atoms, and the particles diameter of about 4 nm was estimated by HREM and Bright field image. Energy dispersive X-ray spectrometry (XEDS) allowed to determine that Pt-Pd nanoparticles were found mainly to have cubeoctahedral shape with fee packing and their values were found to be close to the stochiometric relative concentrations in weight of the metals, in the precursor aqueous solution.
Original languageAmerican English
Pages157-160
Number of pages140
StatePublished - 23 Aug 2007
Externally publishedYes
Event2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings -
Duration: 23 Aug 2007 → …

Conference

Conference2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings
Period23/08/07 → …

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High resolution electron microscopy
Silicon Dioxide
Silica
Nanoparticles
Energy dispersive spectroscopy
X ray diffraction
X rays
Impregnation
Palladium
Solid solutions
Physics
Metals
Transmission electron microscopy
Atoms
Acids

Cite this

Castillo, N., Barriga, L. D., Pérez, R., & Conde, A. (2007). Structural study of Pt<inf>x</inf>-Pd<inf>1-x</inf> nanoparticles supported on silica by high resolution electron microscopy. 157-160. Paper presented at 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings, .
Castillo, N. ; Barriga, L. Diaz ; Pérez, R. ; Conde, A. / Structural study of Pt<inf>x</inf>-Pd<inf>1-x</inf> nanoparticles supported on silica by high resolution electron microscopy. Paper presented at 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings, .140 p.
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Castillo, N, Barriga, LD, Pérez, R & Conde, A 2007, 'Structural study of Pt<inf>x</inf>-Pd<inf>1-x</inf> nanoparticles supported on silica by high resolution electron microscopy', Paper presented at 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings, 23/08/07 pp. 157-160.

Structural study of Pt<inf>x</inf>-Pd<inf>1-x</inf> nanoparticles supported on silica by high resolution electron microscopy. / Castillo, N.; Barriga, L. Diaz; Pérez, R.; Conde, A.

2007. 157-160 Paper presented at 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings, .

Research output: Contribution to conferencePaper

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Castillo N, Barriga LD, Pérez R, Conde A. Structural study of Pt<inf>x</inf>-Pd<inf>1-x</inf> nanoparticles supported on silica by high resolution electron microscopy. 2007. Paper presented at 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings, .