Oxidation states of Fe in LaNi₁₋ₓ Feₓ O₃

The distributoin of oxidation states in perovskites of the type LaA₁₋ₓ BₓO₃ (A and B transition metal ions) can be “tailored” byx variation. In paticular, in LaNiO₃ it has been shown that Fe substitution for Ni foces some Ni³⁺ into Ni²⁺, while some Fe³⁺ changes into the unusual Fe⁴⁺ state. In additi...

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Detalles Bibliográficos
Autores principales: Goeta, Andrés Eduardo, Goya, Gerardo Fabián, Mercader, Roberto Carlos, Punte, Graciela María del Carmen, Falcón, H., Carbonio, Raúl E.
Formato: Articulo
Lenguaje:Inglés
Publicado: 1994
Materias:
Física
Química
Oxidation
Hydrogen
Spectroscopy
Thin Film
Hydrogen Peroxide
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/146532
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-146532
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Química
Oxidation
Hydrogen
Spectroscopy
Thin Film
Hydrogen Peroxide
spellingShingle Física
Química
Oxidation
Hydrogen
Spectroscopy
Thin Film
Hydrogen Peroxide
Goeta, Andrés Eduardo
Goya, Gerardo Fabián
Mercader, Roberto Carlos
Punte, Graciela María del Carmen
Falcón, H.
Carbonio, Raúl E.
Oxidation states of Fe in LaNi₁₋ₓ Feₓ O₃
topic_facet Física
Química
Oxidation
Hydrogen
Spectroscopy
Thin Film
Hydrogen Peroxide
description The distributoin of oxidation states in perovskites of the type LaA₁₋ₓ BₓO₃ (A and B transition metal ions) can be “tailored” byx variation. In paticular, in LaNiO₃ it has been shown that Fe substitution for Ni foces some Ni³⁺ into Ni²⁺, while some Fe³⁺ changes into the unusual Fe⁴⁺ state. In addition, the existence of mixed oxidation states of Fe and/or Ni in LaNi₁₋ₓ FeₓO₃ has been related to its catalytic activity in hydrogen peroxide decomposition. The Fe⁴⁺ population, obtained using Mossbauer spectroscopy, was found to be constant for all the analyzed annealing temperatures forx=0.25 concentration, where the isomer shift difference for both states is the highest and the catalytic activity is maximum.
format Articulo
Articulo
author Goeta, Andrés Eduardo
Goya, Gerardo Fabián
Mercader, Roberto Carlos
Punte, Graciela María del Carmen
Falcón, H.
Carbonio, Raúl E.
author_facet Goeta, Andrés Eduardo
Goya, Gerardo Fabián
Mercader, Roberto Carlos
Punte, Graciela María del Carmen
Falcón, H.
Carbonio, Raúl E.
author_sort Goeta, Andrés Eduardo
title Oxidation states of Fe in LaNi₁₋ₓ Feₓ O₃
title_short Oxidation states of Fe in LaNi₁₋ₓ Feₓ O₃
title_full Oxidation states of Fe in LaNi₁₋ₓ Feₓ O₃
title_fullStr Oxidation states of Fe in LaNi₁₋ₓ Feₓ O₃
title_full_unstemmed Oxidation states of Fe in LaNi₁₋ₓ Feₓ O₃
title_sort oxidation states of fe in lani₁₋ₓ feₓ o₃
publishDate 1994
url http://sedici.unlp.edu.ar/handle/10915/146532
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