Acetylacetonate hydrous zirconium(IV) complexes supported on hydrophilic polymers as new selective growth precursors of monoclinic and tetragonal zirconium oxide nanocrystals
Por:
Pérez-Tavares J.A., Patakfalvi R., Ortiz-Frade L., Frausto-Reyes C., Saavedra-Arroyo Q.E., Pérez-Ladrón De Guevara H., Castañeda-Contreras J., Marañón-Ruiz V.F.
Publicada:
1 ene 2020
Resumen:
Pure ZrO2 nanocrystals were successfully prepared from three new complexes of hydrous zirconium acetylacetonate ([Zr2(AcAc)•4H2O]2, [Zr2(AcAc)-PEI•nH2O]2 and [Zr2(AcAc)-PDDAC•nH2O]2), obtained using solvothermal synthesis. The addition of poly(ethyleneimine) (PEI) and poly(diallyldimethylammonium chloride) (PDDAC) hydrophilic polymers as stabilizing agents, had impact on the size and crystalline phase of the calcinated products within a range of 300 to 800 °C, obtaining ZrO2 nanoparticles with tetragonal and/or monoclinic structure and diameters of 5 to 20 nm. The synthesized precursor complexes and ZrO2 were characterized by thermogravimetry (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD), UV-Vis spectroscopy, Fourier transformed infrared spectroscopy (FT-IR/FIR) and Raman spectroscopy. © 2020, S.C. Virtual Company of Phisics S.R.L. All rights reserved.
Filiaciones:
Pérez-Tavares J.A.:
Los Lagos University Center, University of Guadalajara, Lagos de Moreno, Jalisco, Mexico
Patakfalvi R.:
Los Lagos University Center, University of Guadalajara, Lagos de Moreno, Jalisco, Mexico
Ortiz-Frade L.:
Center of Research and Technological Development in Electrochemistry S.C. Parque Tecnológico Querétaro, Sanfandila, Pedro de Escobedo, Querétaro C.P. 76703, Mexico
Frausto-Reyes C.:
Optical Research Center, Aguascalientes Campus, Aguascalientes, Mexico
Saavedra-Arroyo Q.E.:
Technological Institute of Irapuato, Materials Science Department, Irapuato, Guanajuato, Mexico
Pérez-Ladrón De Guevara H.:
Los Lagos University Center, University of Guadalajara, Lagos de Moreno, Jalisco, Mexico
Castañeda-Contreras J.:
Los Lagos University Center, University of Guadalajara, Lagos de Moreno, Jalisco, Mexico
Marañón-Ruiz V.F.:
Los Lagos University Center, University of Guadalajara, Lagos de Moreno, Jalisco, Mexico
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