Ordering Heterogeneity of [MnO6] Octahedra in Tunnel-Structured MnO2 and Its Influence on Ion Storage
Abstract
[MnO6] octahedra are the structural units for a large family of manganese dioxides (MnO2) possessing one-dimensional tunnel structures with extensive applications in catalysis and energy storage. Despite the long-range [MnO6] ordering confirmed by conventional diffraction tools, surprisingly, the functional properties of a specific MnO2 tunnel phase still vary significantly in literature with unclear structural origins. Here, we demonstrate the existence of tunnel heterogeneity featuring localized tunnel intergrowths within single MnO2 nanoparticles via atomically resolved imaging. The degree of tunnel heterogeneity increases with the size increase of tunnels from β-MnO2 (1 × 1 tunnel) to α-MnO2 (2 × 2 tunnel), and to todorokite MnO2 (3 × 3 tunnel). Furthermore, the tunnel heterogeneity within one MnO2 nanoparticle significantly affects the energy storage kinetics even down to sub-nanometer scale. Furthermore these findings are expected to call for renewed attention to the controlled synthesis of homogeneous tunnel-specific phases with predictable properties and to yield a more precise structure-property relationship in polymorphic materials.
- Authors:
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); National Science Foundation (NSF); Directorate for Mathematical and Physical Sciences Division of Materials Research (MPS-DMR); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
- OSTI Identifier:
- 1600598
- Alternate Identifier(s):
- OSTI ID: 1505609
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Published Article
- Journal Name:
- Joule
- Additional Journal Information:
- Journal Name: Joule Journal Volume: 3 Journal Issue: 2; Journal ID: ISSN 2542-4351
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE; atomic resolution; energy storage; manganese dioxidetunnel; structure heterogeneity; tunnel structure
Citation Formats
Yuan, Yifei, Liu, Cong, Byles, Bryan W., Yao, Wentao, Song, Boao, Cheng, Meng, Huang, Zhennan, Amine, Khalil, Pomerantseva, Ekaterina, Shahbazian-Yassar, Reza, and Lu, Jun. Ordering Heterogeneity of [MnO6] Octahedra in Tunnel-Structured MnO2 and Its Influence on Ion Storage. United States: N. p., 2019.
Web. doi:10.1016/j.joule.2018.10.026.
Yuan, Yifei, Liu, Cong, Byles, Bryan W., Yao, Wentao, Song, Boao, Cheng, Meng, Huang, Zhennan, Amine, Khalil, Pomerantseva, Ekaterina, Shahbazian-Yassar, Reza, & Lu, Jun. Ordering Heterogeneity of [MnO6] Octahedra in Tunnel-Structured MnO2 and Its Influence on Ion Storage. United States. https://doi.org/10.1016/j.joule.2018.10.026
Yuan, Yifei, Liu, Cong, Byles, Bryan W., Yao, Wentao, Song, Boao, Cheng, Meng, Huang, Zhennan, Amine, Khalil, Pomerantseva, Ekaterina, Shahbazian-Yassar, Reza, and Lu, Jun. Fri .
"Ordering Heterogeneity of [MnO6] Octahedra in Tunnel-Structured MnO2 and Its Influence on Ion Storage". United States. https://doi.org/10.1016/j.joule.2018.10.026.
@article{osti_1600598,
title = {Ordering Heterogeneity of [MnO6] Octahedra in Tunnel-Structured MnO2 and Its Influence on Ion Storage},
author = {Yuan, Yifei and Liu, Cong and Byles, Bryan W. and Yao, Wentao and Song, Boao and Cheng, Meng and Huang, Zhennan and Amine, Khalil and Pomerantseva, Ekaterina and Shahbazian-Yassar, Reza and Lu, Jun},
abstractNote = {[MnO6] octahedra are the structural units for a large family of manganese dioxides (MnO2) possessing one-dimensional tunnel structures with extensive applications in catalysis and energy storage. Despite the long-range [MnO6] ordering confirmed by conventional diffraction tools, surprisingly, the functional properties of a specific MnO2 tunnel phase still vary significantly in literature with unclear structural origins. Here, we demonstrate the existence of tunnel heterogeneity featuring localized tunnel intergrowths within single MnO2 nanoparticles via atomically resolved imaging. The degree of tunnel heterogeneity increases with the size increase of tunnels from β-MnO2 (1 × 1 tunnel) to α-MnO2 (2 × 2 tunnel), and to todorokite MnO2 (3 × 3 tunnel). Furthermore, the tunnel heterogeneity within one MnO2 nanoparticle significantly affects the energy storage kinetics even down to sub-nanometer scale. Furthermore these findings are expected to call for renewed attention to the controlled synthesis of homogeneous tunnel-specific phases with predictable properties and to yield a more precise structure-property relationship in polymorphic materials.},
doi = {10.1016/j.joule.2018.10.026},
journal = {Joule},
number = 2,
volume = 3,
place = {United States},
year = {Fri Feb 01 00:00:00 EST 2019},
month = {Fri Feb 01 00:00:00 EST 2019}
}
https://doi.org/10.1016/j.joule.2018.10.026
Web of Science
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