Journal article
Synthesis strategies toward improved ordering of [MnO6] octahedra in tunnel structured 2 x 3 and 2 x 4 MnO2
Scripta materialia, v 195
01 Apr 2021
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Improved homogeneity of tunnel size in Na-stabilized 2 x 3 and 2 x 4 MnO2 structures was achieved by identifying and controlling critical synthesis parameters. 2 x 3 and 2 x 4 MnO2 tunnel manganese oxide nanowires were obtained by hydrothermal treatment of Na-birnessite, a layered manganese oxide that undergoes a layer-to-tunnel transition under high pressure and temperature. Herein, the improved ordering of [MnO6] octahedra is revealed via a combined analysis of X-ray diffraction patterns and scanning transmission electron microscopy images. We show that crystallinity of the Na-birnessite precursor and the chemical composition of the system during hydrothermal treatment are crucial for achieving the targeted size of the structural tunnels with adequate uniformity. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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Details
- Title
- Synthesis strategies toward improved ordering of [MnO6] octahedra in tunnel structured 2 x 3 and 2 x 4 MnO2
- Creators
- Ryan Andris - Drexel UniversityPhillip Ridley - Drexel UniversityBryan W. Byles - Drexel UniversityDavid A. Cullen - Oak Ridge National LaboratoryKarren L. More - Oak Ridge National LaboratoryEkaterina Pomerantseva - Drexel University
- Publication Details
- Scripta materialia, v 195
- Publisher
- Elsevier
- Number of pages
- 5
- Grant note
- CMMI-1635233; CBET-1604483 / National Science Foundation; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000618909800008
- Scopus ID
- 2-s2.0-85099289559
- Other Identifier
- 991019168122804721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Metallurgy & Metallurgical Engineering
- Nanoscience & Nanotechnology