skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Oxidation induced strain and defects in magnetite crystals

Abstract

Oxidation of magnetite (Fe 3O 4) 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:
 [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [2];  [3];  [3]; ORCiD logo [1]
  1. Argonne National Lab. (ANL), Lemont, IL (United States)
  2. Sogang Univ., Seoul (Korea)
  3. Univ. of Delaware, Newark, DE (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & 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. doi: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. doi: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 = {2019},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share: