Conference proceeding
Diffusion of charge-carrying ions in tunnel manganese oxides: effect of 1D tunnel size and ionic content
LOW-DIMENSIONAL MATERIALS AND DEVICES, v 10725, pp 107250X-107250X-6
01 Jan 2018
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The low cost, environmental friendliness, and high electrochemical activity of manganese oxides make them attractive candidates for electrodes in intercalation-based battery systems. Tunnel manganese oxides are a subset of this materials family built from corner and edge sharing MnO6 octahedra arranged around stabilizing cations and water molecules to form tunnels of various size and shape. Here, we synthesize three tunnel manganese oxides with different 1D diffusion channel size and ionic content. The apparent Li+ ion and Na+ ion diffusion coefficients are calculated from the galvanostatic intermittent titration technique to understand the effect of tunnel size and ionic content on diffusion of charge-carrying ions through the one-dimensional structural tunnels. In LIBs, the material with the largest tunnels demonstrated the highest Li+ ion diffusion coefficient, while in SIBs the material stabilized by Na+ ions (the same as the charge-carrying ions) demonstrated the highest rate performance, revealing the significance of ionic content in the structural tunnels. These results highlight the importance of the relationship between tunnel size and charge-carrying ion size and provide insight into the design and selection of tunnel manganese oxides for improved diffusion of charge-carrying species.
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Details
- Title
- Diffusion of charge-carrying ions in tunnel manganese oxides: effect of 1D tunnel size and ionic content
- Creators
- Bryan W. Byles - Drexel UniversityEkaterina Pomerantseva - Drexel University
- Contributors
- N P Kobayashi (Editor)A A Talin (Editor)M S Islam (Editor)A V Davydov (Editor)
- Publication Details
- LOW-DIMENSIONAL MATERIALS AND DEVICES, v 10725, pp 107250X-107250X-6
- Series
- Proceedings of SPIE
- Publisher
- Spie-Int Soc Optical Engineering
- Number of pages
- 6
- Grant note
- CBET-1604483 / National Science Foundation; National Science Foundation (NSF)
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000450922600008
- Scopus ID
- 2-s2.0-85055431833
- Other Identifier
- 991019168672404721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Materials Science, Multidisciplinary
- Optics
- Physics, Applied