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Dos Santos Afonso, M.; Di Risio, C.D.; Roitberg, A.; Marqués, R.O.; Blesa, M.A. "Reductive dissolution of neutron- and gamma-irradiated magnetite" (1990) International Journal of Radiation Applications and Instrumentation. Part. 36(3):457-460
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Abstract:

The influence of reactor (γ+n) preirradiation on the dissolution of magnetite microcrystals synthetized by a low-temperature wet method was studied. The solvent used was an acid aqueous solution of ascorbic acid. Neither the mechanism of reaction nor the nature of the reactive sites is changed by irradiation, but the number of the latter decrease. These reactive sites are postulated to be iron ions surrounded by imperfect coordination polyhedra, and the influence of radiation traced to the annealing of these sites. The relevance of the results for the use of synthetic oxides as models of nuclear power reactor oxide layers is discussed. © 1990.

Registro:

Documento: Artículo
Título:Reductive dissolution of neutron- and gamma-irradiated magnetite
Autor:Dos Santos Afonso, M.; Di Risio, C.D.; Roitberg, A.; Marqués, R.O.; Blesa, M.A.
Filiación:Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires-Ciudad Universitaria, Pab. II, 1428 Buenos Aires, Argentina
Año:1990
Volumen:36
Número:3
Página de inicio:457
Página de fin:460
DOI: http://dx.doi.org/10.1016/1359-0197(90)90033-E
Título revista:International Journal of Radiation Applications and Instrumentation. Part
ISSN:13590197
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13590197_v36_n3_p457_DosSantosAfonso

Referencias:

  • Aten, Jr., Beers, de Groot, Szilard-chalmers reactions and related processes in oxides—I chemical state of 239U in neutron-irradiated U3O8 (1958) Journal of Inorganic and Nuclear Chemistry, 15, p. 159
  • Aten, Jr., Schenck, Ohm, Szilard-chalmers reactions and related processes in oxides—II chemical state of metastable 204Pb in neutron-irradiated Pb3O4 (1958) Journal of Inorganic and Nuclear Chemistry, 15, p. 161
  • Blesa, Maroto, (1982) Mechanism of Oxide Dissolution by Acid Chelating Agents, , Niagara Falls, Canada
  • Blesa, Maroto, (1985) Reactivity of Solids, p. 529. , P. Barret, L.C. Dufour, Elsevier, Amsterdam
  • Blesa, Maroto, (1986) J. Chem. Phys., 183, p. 757
  • Blesa, Matijevic, Phase transformations of iron oxides, oxohydroxides, and hydrous oxides in aqueous media (1988) Advances in Colloid and Interface Science, 29, p. 173
  • Blesa, Regazzoni, Maroto, (1988) External and Internal Surfaces of Metal Oxides, , J. Novotny, L.C. Dufours, Transtech, Aedermannsdorf, Switzerland
  • Boudelle, Batis-Landoulsi, Leclerqc, Vergnon, Structure of γ-Fe2O3 microcrystals: Vacancy distribution and superstructure (1983) Journal of Solid State Chemistry, 148, p. 21
  • Jones, Segall, Smart, Turner, Semiconducting oxides. The effect of prior annealing temperature on dissolution kinetics of nickel oxide (1977) Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 173, p. 1710
  • Matzke, Radiation damage in crystalline insulators, oxides and ceramic nuclear fuels (1982) Radiation Effects and Defects in Solids, 164, p. 3
  • Oswald, Günter, (1985) Reactivity of Solids, , P. Barret, L.C. Dufour, Elsevier, Amsterdam
  • Regazzoni, Urrutia, Blesa, Maroto, (1981) Inorg. Chem., 143, p. 1489
  • dos Santos Afonso, Morando, Blesa, Banwart, Stumm, (1990) J. Colloid Interface Sci., , in press
  • Segall, Smart, Turner, (1987) Surface and Near Surface Chemistry of Oxide Materials, , J. Novotny, L.C. Dufour, Elsevier, Amsterdam, Chap. 13

Citas:

---------- APA ----------
Dos Santos Afonso, M., Di Risio, C.D., Roitberg, A., Marqués, R.O. & Blesa, M.A. (1990) . Reductive dissolution of neutron- and gamma-irradiated magnetite. International Journal of Radiation Applications and Instrumentation. Part, 36(3), 457-460.
http://dx.doi.org/10.1016/1359-0197(90)90033-E
---------- CHICAGO ----------
Dos Santos Afonso, M., Di Risio, C.D., Roitberg, A., Marqués, R.O., Blesa, M.A. "Reductive dissolution of neutron- and gamma-irradiated magnetite" . International Journal of Radiation Applications and Instrumentation. Part 36, no. 3 (1990) : 457-460.
http://dx.doi.org/10.1016/1359-0197(90)90033-E
---------- MLA ----------
Dos Santos Afonso, M., Di Risio, C.D., Roitberg, A., Marqués, R.O., Blesa, M.A. "Reductive dissolution of neutron- and gamma-irradiated magnetite" . International Journal of Radiation Applications and Instrumentation. Part, vol. 36, no. 3, 1990, pp. 457-460.
http://dx.doi.org/10.1016/1359-0197(90)90033-E
---------- VANCOUVER ----------
Dos Santos Afonso, M., Di Risio, C.D., Roitberg, A., Marqués, R.O., Blesa, M.A. Reductive dissolution of neutron- and gamma-irradiated magnetite. 1990;36(3):457-460.
http://dx.doi.org/10.1016/1359-0197(90)90033-E