Artículo

Candal, R.J.; Regazzoni, A.E.; Blesa, M.A. "Precipitation of monodispersed mixed copper-gadolinium basic carbonate particles" (1993) Colloids and Surfaces A: Physicochemical and Engineering Aspects. 79(2-3):191-198
Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

This work describes the co-precipitation behavior of copper(III) and gadolinium(III) from solutions that become homogeneously alkaline by the forced hydrolysis of urea at 75°C. After a rather short induction period, amorphous mixed copper-gadolinium basic carbonate uniform spherical particles precipitate. The average gadolinium-to-copper ratio in the resulting solids depends on the initial system composition, and is strongly influenced by aging time; particles precipitated at short aging times are richer in copper, whereas the gadolinium-to-copper ratio in the particles obtained after prolonged aging is higher than that in the starting solution. The experimental results indicate that nucleation of amorphous copper hydrous oxide promotes the formation of the mixed solid phases. The influence of each metal ion on the hydrolysis-complexation-precipitation behavior of the other is discussed. The results are used to make a general assessment of the limitations and advantages of the various possible ways of preparing precursors of mixed oxides by wet procedures. © 1993.

Registro:

Documento: Artículo
Título:Precipitation of monodispersed mixed copper-gadolinium basic carbonate particles
Autor:Candal, R.J.; Regazzoni, A.E.; Blesa, M.A.
Filiación:Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellon-2, 1428 Buenos Aires, Argentina
Departamento Química de Reactores, Comisión Nacional de Energía Atómica, Avenida del Libertador 8250, 1429 Buenos Aires, Argentina
Palabras clave:Copper-gadolinium basic carbonates; precipitation; precursors of mixed oxides; synthesis.; Amorphous materials; Copper compounds; Gadolinium compounds; Hydrolysis; Precipitation (chemical); Solutions; Copper gadolinium basic carbonate; Coprecipitation; Forced hydrolysis; Induction period; Spherical particles; Colloids
Año:1993
Volumen:79
Número:2-3
Página de inicio:191
Página de fin:198
DOI: http://dx.doi.org/10.1016/0927-7757(93)80174-D
Título revista:Colloids and Surfaces A: Physicochemical and Engineering Aspects
Título revista abreviado:Colloids Surf. A Physicochem. Eng. Asp.
ISSN:09277757
CODEN:CPEAE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09277757_v79_n2-3_p191_Candal

Referencias:

  • Matijević, (1977) J. Colloid Interface Sci., 58, p. 374
  • Matijević, (1981) Accounts of Chemical Research, 14, p. 22
  • Matijević, (1986) Science of Ceramic Chemical Processing, p. 463. , L.L. Hench, D.R. Ulrich, Wiley, New York
  • Matijević, (1988) Ultrastructure Processing of Advanced Ceramics, p. 429. , S.D. Mackenzie, D.R. Ulrich, Wiley-Interscience, New York
  • Matijević, (1988) Pure Appl. Chem., 60, p. 1479
  • Blesa, Matijević, (1989) Adv. Colloid Interface Sci., 29, p. 173
  • Tamura, Matijević, (1982) J. Colloid Interface Sci., 90, p. 100
  • Gherardi, Matijević, (1988) Colloids Surfaces, 32, p. 257
  • Kim, Matijević, (1989) Chemistry of Materials, 1, p. 363
  • Aiken, Hsu, Matijević, (1988) Journal of the American Ceramic Society, 71, p. 845
  • Regazzoni, Matijević, (1982) Corrosion, 38, p. 212
  • Regazzoni, Matijević, (1983) Colloids Surfaces, 6, p. 189
  • Regazzoni, Matijević, (1984) Corrosion, 40, p. 257
  • Ribot, Kratohvil, Matijević, (1989) J. Mater. Res., 4, p. 1123
  • Candal, Regazzoni, Blesa, (1992) J. Mater. Chem., 2, p. 657
  • Caro, Lemaitre-Blaise, (1969) C. R. Acad. Sci. Paris, 269, p. 687. , Ser. C
  • Gilbert, Lépine, Laurin, Ouellet, Gauthier, (1985) Can. J. Chem. Eng., 63, p. 978
  • Matijević, Hsu, (1987) J. Colloid Interface Sci., 118, p. 506
  • Kallay, Fischer, Matijević, (1985) Colloids Surfaces, 13, p. 145
  • Her, Matijević, Wilcox, (1990) Powder Technol., 61, p. 173
  • Smith, Martell, (1976) Critical Stability Constants, 4. , Plenum, New York

Citas:

---------- APA ----------
Candal, R.J., Regazzoni, A.E. & Blesa, M.A. (1993) . Precipitation of monodispersed mixed copper-gadolinium basic carbonate particles. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 79(2-3), 191-198.
http://dx.doi.org/10.1016/0927-7757(93)80174-D
---------- CHICAGO ----------
Candal, R.J., Regazzoni, A.E., Blesa, M.A. "Precipitation of monodispersed mixed copper-gadolinium basic carbonate particles" . Colloids and Surfaces A: Physicochemical and Engineering Aspects 79, no. 2-3 (1993) : 191-198.
http://dx.doi.org/10.1016/0927-7757(93)80174-D
---------- MLA ----------
Candal, R.J., Regazzoni, A.E., Blesa, M.A. "Precipitation of monodispersed mixed copper-gadolinium basic carbonate particles" . Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 79, no. 2-3, 1993, pp. 191-198.
http://dx.doi.org/10.1016/0927-7757(93)80174-D
---------- VANCOUVER ----------
Candal, R.J., Regazzoni, A.E., Blesa, M.A. Precipitation of monodispersed mixed copper-gadolinium basic carbonate particles. Colloids Surf. A Physicochem. Eng. Asp. 1993;79(2-3):191-198.
http://dx.doi.org/10.1016/0927-7757(93)80174-D