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Manganese oxidation states repartition in a channel-like mesoporous zirconium oxide

Authors
  • Couzon, Nelly1
  • Bois, Laurence1
  • Fellah, Clémentine2
  • Loestean, Cristian3
  • Chassagneux, Fernand1
  • Chiriac, Rodica1
  • Toche, François1
  • Khrouz, Lhoussain4
  • Brioude, Arnaud1
  • Ersen, Ovidiu5
  • Roiban, Lucian6
  • 1 Univ. Lyon, Université Claude Bernard Lyon 1, Laboratoire Des Multimatériaux Et Interfaces, UMR CNRS 5615, Villeurbanne, 69622, France , Villeurbanne (France)
  • 2 Université de Lyon, ENS Lyon, Université Lyon 1, CNRS, LGL-TPE, Lyon, 69007, France , Lyon (France)
  • 3 National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat St, Cluj-Napoca, 400293, Romania , Cluj-Napoca (Romania)
  • 4 Univ. Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratoire de Chimie, Lyon, 69342, France , Lyon (France)
  • 5 Institut de Physique Et Chimie Des Matériaux de Strasbourg (IPCMS), UMR 7504, CNRS - Université de Strasbourg, 23 rue du Loess, BP 43, Strasbourg Cedex 2, 67034, France , Strasbourg Cedex 2 (France)
  • 6 Univ. Lyon, INSA-Lyon, Université Claude Bernard Lyon 1, MATEIS, UMR5510 CNRS, 7 avenue Jean Capelle, Villeurbanne, 69100, France , Villeurbanne (France)
Type
Published Article
Journal
Journal of Porous Materials
Publisher
Kluwer Academic Publishers
Publication Date
Aug 10, 2020
Volume
27
Issue
6
Pages
1823–1835
Identifiers
DOI: 10.1007/s10934-020-00962-5
Source
Springer Nature
Keywords
License
Yellow

Abstract

Here, we present a characterization of mesoporous mixed manganese zirconium oxide (MnZr) synthesized by evaporation induced self-assembly method involving a block copolymer self-assembly method. The MnZr oxide has been fully characterized by X-ray diffraction, transmission electronic microscopy, analytical electronic tomography, nitrogen adsorption/desorption isotherms, thermogravimetric analysis, X-ray photoelectron spectroscopy and electronic paramagnetic resonance. Electronic tomography analysis reveals that a mesoporous solid solution MnZr was successfully obtained by this way, with a homogeneous dispersion of Mn. X-ray diffraction, X-ray photoelectron spectroscopy, thermal analysis and electronic paramagnetic resonance inform about the manganese oxidation states present (Mn2+, Mn3+, Mn4+) and their location within the sample.

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