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New Synthesis Method to Obtain Pd Nano-Crystals
MARTHA TERESITA OCHOA LARA
JOSE JESUS CARLOS QUINTANAR SIERRA
Acceso Abierto
Sin Derechos Reservados
palladium nano-crystal
TGA
HRSEM
We report a new synthesis method to obtain palladium nano-crystals by sol-gel polymerized with acrylamide. From thermogravimetric analysis (TGA) studies, we found PdO and Pd compounds in the xerogel sample, at 550 ºC, and over 900 ºC we detected only metallic Pd. These results were corroborated by powder X-Ray Diffraction (XRD), High Resolution Scanning Electron Microscopy (HRSEM), and Transmission Electron Microscopy (TEM). XRD studies exhibit the lines from the tetragonal structure (PDF 41-1107) of PdO compound and from the cubic structure (PDF 46-1043) of Pd metallic. HRSEM micrographs show morphologies from the sample very sensitive to heat treatment. Finally, TEM images show crystals of ~8 nm in diameter.
2011
Artículo
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OTRAS
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