A cyclic and polymeric phosphazene as solid state template for the formation of RuO2 nanoparticles

C. Díaz, M. L. Valenzuela, E. Spodine, Y. Moreno, O. Peña

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

21 Citas (Scopus)

Resumen

Pyrolysis of the organometallic polymer: {{[N=P(R1)] 0.8[N=P(OC6H4CH2CN[Ru]) 2]0.15[N=P((OC6H5)(OC 6H4CH2CN[Ru]]0.05}{Cl} 0.31} n , [Ru]=CpRu(PPh3)2, R 1 = O2C12H8 (1) as well of the cyclic specie {N3P3 (OC6H5) 5(OC6H4CH2CN[Ru])}{PF6} (2) under a flow of air at 800°C affords nanostructured RuO2. Nanoparticles near to 10 nm were observed. The differences in the use of cyclic or polymeric phosphazenes, as solid state template, influence strongly the morphology and slightly the composition of the pyrolytic product. Temperature variable (SQUID) measurements in the range of 5-300 K of the material obtained from the polymer, indicate an antiferromagnetic interaction between the Ru atoms, although lower than that found for the crystalline ruthenium oxide, probably due to some amorphous product present in the pyrolytic material. The possible formation mechanism is discussed and the differences in using the cyclic or the polymeric compound as precursor is analyzed in terms of the relative content of Ru to P, N. A general formation method of nanostructured metal oxides is proposed.

Idioma originalInglés
Páginas (desde-hasta)831-844
Número de páginas14
PublicaciónJournal of Cluster Science
Volumen18
N.º4
DOI
EstadoPublicada - dic 2007

Áreas temáticas de ASJC Scopus

  • Bioquímica
  • Química (todo)
  • Ciencia de los materiales (todo)
  • Física de la materia condensada

Huella

Profundice en los temas de investigación de 'A cyclic and polymeric phosphazene as solid state template for the formation of RuO<sub>2</sub> nanoparticles'. En conjunto forman una huella única.

Citar esto