Abstract
Co-substituted manganese oxide nanosheets, (Mn 1-xCo x)O 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 1-xCo x)O 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 2 layer is independent of x (i.e., [(Mn,Co)O 2] 0.2-) and the cobalt ions are trivalent in low-spin state. © 2012 Elsevier Ltd. All rights reserved.
Original language | English (US) |
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Pages (from-to) | 3855-3859 |
Number of pages | 5 |
Journal | Materials Research Bulletin |
Volume | 47 |
Issue number | 11 |
DOIs | |
State | Published - Nov 1 2012 |
Externally published | Yes |
Bibliographical note
Generated from Scopus record by KAUST IRTS on 2022-09-13ASJC Scopus subject areas
- Mechanics of Materials
- General Materials Science
- Mechanical Engineering
- Condensed Matter Physics