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Title: One-pot synthesis of co-substituted manganese oxide nanosheets and physical properties of lamellar aggregates

Abstract

Graphical abstract: Display Omitted Highlights: ► Solid solution nanosheets, (Mn{sub 1−x}Co{sub x})O{sub 2}, synthesized via facile one-pot process. ► The structural characterization of nanosheets revealing a single (Mn,Co)O{sub 2} layer and the solubility limit as x ∼ 0.20. ► The invariant charge density of the layer upon Co substitution. ► Systematic dependence of magnetic and optical properties of the lamellar aggregates. -- Abstract: Co-substituted manganese oxide nanosheets, (Mn{sub 1−x}Co{sub x})O{sub 2} have been synthesized in the form of a colloidal suspension via a simple one-pot method. Substitution effects on the structural, optical absorption, and magnetic properties are investigated for the nanosheets and their lamellar aggregates. The composition of the (Mn{sub 1−x}Co{sub x})O{sub 2} nanosheets can be controlled continuously by adjusting the molar ratio of the starting materials. The solubility limit is x ∼ 0.20 based on the cell volume. In the 0.00 ≤ x ≤ 0.20 range, the band gap energy, magnetic moment, and Weiss temperature change systematically with x. The charge density of the (Mn,Co)O{sub 2} layer is independent of x (i.e., [(Mn,Co)O{sub 2}]{sup 0.2−}) and the cobalt ions are trivalent in low-spin state.

Authors:
 [1];  [2];  [1];  [3]; ;  [4];  [2];  [1];  [1];  [2]
  1. Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)
  2. (Japan)
  3. (IMN), CNRS UMR 6502, Universite de Nantes, 2 Rue de la Houssiniere, BP32229, 44322 Nantes Cedex 3 (France)
  4. Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502 (Japan)
Publication Date:
OSTI Identifier:
22215629
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION; CHARGE DENSITY; COBALT IONS; LAYERS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; MANGANESE OXIDES; NANOSTRUCTURES; OPTICAL PROPERTIES; SOLID SOLUTIONS; SUSPENSIONS; SYNTHESIS; THIN FILMS; X-RAY DIFFRACTION

Citation Formats

Kai, Kazuya, Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Cuisinier, Marine, Institut des Materiaux Jean Rouxel, Yoshida, Yukihiro, Saito, Gunzi, Research Institute, Meijo University, Shiogamaguchi 1-501 Tempaku-ku, Nagoya 468-8502, Kobayashi, Yoji, Kageyama, Hiroshi, E-mail: kage@scl.kyoto-u.ac.jp, and Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502. One-pot synthesis of co-substituted manganese oxide nanosheets and physical properties of lamellar aggregates. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.08.008.
Kai, Kazuya, Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Cuisinier, Marine, Institut des Materiaux Jean Rouxel, Yoshida, Yukihiro, Saito, Gunzi, Research Institute, Meijo University, Shiogamaguchi 1-501 Tempaku-ku, Nagoya 468-8502, Kobayashi, Yoji, Kageyama, Hiroshi, E-mail: kage@scl.kyoto-u.ac.jp, & Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502. One-pot synthesis of co-substituted manganese oxide nanosheets and physical properties of lamellar aggregates. United States. doi:10.1016/J.MATERRESBULL.2012.08.008.
Kai, Kazuya, Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Cuisinier, Marine, Institut des Materiaux Jean Rouxel, Yoshida, Yukihiro, Saito, Gunzi, Research Institute, Meijo University, Shiogamaguchi 1-501 Tempaku-ku, Nagoya 468-8502, Kobayashi, Yoji, Kageyama, Hiroshi, E-mail: kage@scl.kyoto-u.ac.jp, and Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502. Thu . "One-pot synthesis of co-substituted manganese oxide nanosheets and physical properties of lamellar aggregates". United States. doi:10.1016/J.MATERRESBULL.2012.08.008.
@article{osti_22215629,
title = {One-pot synthesis of co-substituted manganese oxide nanosheets and physical properties of lamellar aggregates},
author = {Kai, Kazuya and Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502 and Cuisinier, Marine and Institut des Materiaux Jean Rouxel and Yoshida, Yukihiro and Saito, Gunzi and Research Institute, Meijo University, Shiogamaguchi 1-501 Tempaku-ku, Nagoya 468-8502 and Kobayashi, Yoji and Kageyama, Hiroshi, E-mail: kage@scl.kyoto-u.ac.jp and Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502},
abstractNote = {Graphical abstract: Display Omitted Highlights: ► Solid solution nanosheets, (Mn{sub 1−x}Co{sub x})O{sub 2}, synthesized via facile one-pot process. ► The structural characterization of nanosheets revealing a single (Mn,Co)O{sub 2} layer and the solubility limit as x ∼ 0.20. ► The invariant charge density of the layer upon Co substitution. ► Systematic dependence of magnetic and optical properties of the lamellar aggregates. -- Abstract: Co-substituted manganese oxide nanosheets, (Mn{sub 1−x}Co{sub x})O{sub 2} have been synthesized in the form of a colloidal suspension via a simple one-pot method. Substitution effects on the structural, optical absorption, and magnetic properties are investigated for the nanosheets and their lamellar aggregates. The composition of the (Mn{sub 1−x}Co{sub x})O{sub 2} nanosheets can be controlled continuously by adjusting the molar ratio of the starting materials. The solubility limit is x ∼ 0.20 based on the cell volume. In the 0.00 ≤ x ≤ 0.20 range, the band gap energy, magnetic moment, and Weiss temperature change systematically with x. The charge density of the (Mn,Co)O{sub 2} layer is independent of x (i.e., [(Mn,Co)O{sub 2}]{sup 0.2−}) and the cobalt ions are trivalent in low-spin state.},
doi = {10.1016/J.MATERRESBULL.2012.08.008},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}