Oxidation induced strain and defects in magnetite crystals
Abstract
Oxidation of magnetite (Fe3O4) has broad implications in geochemistry, environmental science and materials science. Spatially resolving strain fields and defect evolution during oxidation of magnetite provides further insight into its reaction mechanisms. Here we show that the morphology and internal strain distributions within individual nano-sized (~400 nm) magnetite crystals can be visualized using Bragg coherent diffractive imaging (BCDI). Oxidative dissolution in acidic solutions leads to increases in the magnitude and heterogeneity of internal strains. This heterogeneous strain likely results from lattice distortion caused by Fe(II) diffusion that leads to the observed domains of increasing compressive and tensile strains. In contrast, strain evolution is less pronounced during magnetite oxidation at elevated temperature in air. Furthermore, these results demonstrate that oxidative dissolution of magnetite can induce a rich array of strain and defect structures, which could be an important factor that contributes to the high reactivity observed on magnetite particles in aqueous environment.
- Authors:
-
- Argonne National Lab. (ANL), Lemont, IL (United States)
- Sogang Univ., Seoul (Korea)
- Univ. of Delaware, Newark, DE (United States)
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
- OSTI Identifier:
- 1494579
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Yuan, Ke, Lee, Sang Soo, Cha, Wonsuk, Ulvestad, Andrew, Kim, Hyunjung, Abdilla, Bektur, Sturchio, Neil C., and Fenter, Paul. Oxidation induced strain and defects in magnetite crystals. United States: N. p., 2019.
Web. doi:10.1038/s41467-019-08470-0.
Yuan, Ke, Lee, Sang Soo, Cha, Wonsuk, Ulvestad, Andrew, Kim, Hyunjung, Abdilla, Bektur, Sturchio, Neil C., & Fenter, Paul. Oxidation induced strain and defects in magnetite crystals. United States. https://doi.org/10.1038/s41467-019-08470-0
Yuan, Ke, Lee, Sang Soo, Cha, Wonsuk, Ulvestad, Andrew, Kim, Hyunjung, Abdilla, Bektur, Sturchio, Neil C., and Fenter, Paul. Mon .
"Oxidation induced strain and defects in magnetite crystals". United States. https://doi.org/10.1038/s41467-019-08470-0. https://www.osti.gov/servlets/purl/1494579.
@article{osti_1494579,
title = {Oxidation induced strain and defects in magnetite crystals},
author = {Yuan, Ke and Lee, Sang Soo and Cha, Wonsuk and Ulvestad, Andrew and Kim, Hyunjung and Abdilla, Bektur and Sturchio, Neil C. and Fenter, Paul},
abstractNote = {Oxidation of magnetite (Fe3O4) has broad implications in geochemistry, environmental science and materials science. Spatially resolving strain fields and defect evolution during oxidation of magnetite provides further insight into its reaction mechanisms. Here we show that the morphology and internal strain distributions within individual nano-sized (~400 nm) magnetite crystals can be visualized using Bragg coherent diffractive imaging (BCDI). Oxidative dissolution in acidic solutions leads to increases in the magnitude and heterogeneity of internal strains. This heterogeneous strain likely results from lattice distortion caused by Fe(II) diffusion that leads to the observed domains of increasing compressive and tensile strains. In contrast, strain evolution is less pronounced during magnetite oxidation at elevated temperature in air. Furthermore, these results demonstrate that oxidative dissolution of magnetite can induce a rich array of strain and defect structures, which could be an important factor that contributes to the high reactivity observed on magnetite particles in aqueous environment.},
doi = {10.1038/s41467-019-08470-0},
journal = {Nature Communications},
number = 1,
volume = 10,
place = {United States},
year = {Mon Feb 11 00:00:00 EST 2019},
month = {Mon Feb 11 00:00:00 EST 2019}
}
Web of Science
Figures / Tables:
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