Journal article
Ordering Heterogeneity of [MnO6] Octahedra in Tunnel-Structured MnO2 and Its Influence on Ion Storage
Joule, v 3(2), pp 471-484
20 Feb 2019
Featured in Collection : UN Sustainable Development Goals @ Drexel
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 beta-MnO2 (1 x 1 tunnel) to alpha-MnO2 (2 x 2 tunnel), and to todorokite MnO2 (3 x 3 tunnel). Furthermore, the tunnel heterogeneity within one MnO2 nanoparticle significantly affects the energy storage kinetics even down to sub-nanometer scale. 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.
Metrics
Details
- Title
- Ordering Heterogeneity of [MnO6] Octahedra in Tunnel-Structured MnO2 and Its Influence on Ion Storage
- Creators
- Yifei Yuan - Argonne National LaboratoryCong Liu - Argonne National LaboratoryBryan W. Byles - Drexel UniversityWentao Yao - University of Illinois at ChicagoBoao Song - University of Illinois at ChicagoMeng Cheng - University of Illinois at ChicagoZhennan Huang - University of Illinois at ChicagoKhalil Amine - Argonne National LaboratoryEkaterina Pomerantseva - Drexel UniversityReza Shahbazian-Yassar - University of Illinois at ChicagoJun Lu - Argonne National LaboratoryArgonne National Lab. (ANL), Argonne, IL (United States)
- Publication Details
- Joule, v 3(2), pp 471-484
- Publisher
- Elsevier
- Number of pages
- 14
- Grant note
- US Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Office; United States Department of Energy (DOE) DE-AC02-06CH11357 / DOE Office of Science by UChicago Argonne; United States Department of Energy (DOE) DE-AC02-06CH11357 / U.S. Department of Energy (DOE), Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences; United States Department of Energy (DOE) CBET-1604483 / National Science Foundation; National Science Foundation (NSF) 1620901 / NSF-DMR; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000460076100016
- Scopus ID
- 2-s2.0-85061371516
- Other Identifier
- 991019169551004721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Physical
- Energy & Fuels
- Materials Science, Multidisciplinary