Strongly enhanced oxygen ion transport through samarium-doped CeO2 nanopillars in nanocomposite films
Abstract
Enhancement of oxygen ion conductivity in oxides is important for low-temperature (<500 °C) operation of solid oxide fuel cells, sensors and other ionotronic devices. While huge ion conductivity has been demonstrated in planar heterostructure films, there has been considerable debate over the origin of the conductivity enhancement, in part because of the difficulties of probing buried ion transport channels. Here we create a practical geometry for device miniaturization, consisting of highly crystalline micrometre-thick vertical nanocolumns of Sm-doped CeO2 embedded in supporting matrices of SrTiO3. The ionic conductivity is higher by one order of magnitude than plain Sm-doped CeO2 films. By using scanning probe microscopy, we show that the fast ion-conducting channels are not exclusively restricted to the interface but also are localized at the Sm-doped CeO2 nanopillars. In conclusion, this work offers a pathway to realize spatially localized fast ion transport in oxides of micrometre thickness.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Univ. of Cambridge (United Kingdom)
- Texas A & M Univ., College Station, TX (United States)
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Seoul National Univ. (Korea, Republic of)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science; Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); USDOE National Nuclear Security Administration (NNSA); European Research Council (ERC); National Science Foundation (NSF)
- OSTI Identifier:
- 1223073
- Alternate Identifier(s):
- OSTI ID: 1236041; OSTI ID: 1340268
- Report Number(s):
- LA-UR-15-27228; SAND-2016-12739J
Journal ID: ISSN 2041-1723; KC0403040; ERKCZ01
- Grant/Contract Number:
- AC05-00OR22725; AC52-06NA25396; AC04-94AL85000; ERC-2009-AdG-247276-NOVOX; NSF-1007969; DMR-1401266
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 6; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY; 30 DIRECT ENERGY CONVERSION; 36 MATERIALS SCIENCE; Thin film; nanocomposite; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Yang, Sangmo, Lee, Shinbuhm, Jian, Jie, Zhang, Wenrui, Lu, Ping, Jia, Quanxi, Wang, Haiyan, Noh, Tae Won, Kalinin, Sergei V., and MacManus-Driscoll, Judith L. Strongly enhanced oxygen ion transport through samarium-doped CeO2 nanopillars in nanocomposite films. United States: N. p., 2015.
Web. doi:10.1038/ncomms9588.
Yang, Sangmo, Lee, Shinbuhm, Jian, Jie, Zhang, Wenrui, Lu, Ping, Jia, Quanxi, Wang, Haiyan, Noh, Tae Won, Kalinin, Sergei V., & MacManus-Driscoll, Judith L. Strongly enhanced oxygen ion transport through samarium-doped CeO2 nanopillars in nanocomposite films. United States. https://doi.org/10.1038/ncomms9588
Yang, Sangmo, Lee, Shinbuhm, Jian, Jie, Zhang, Wenrui, Lu, Ping, Jia, Quanxi, Wang, Haiyan, Noh, Tae Won, Kalinin, Sergei V., and MacManus-Driscoll, Judith L. Thu .
"Strongly enhanced oxygen ion transport through samarium-doped CeO2 nanopillars in nanocomposite films". United States. https://doi.org/10.1038/ncomms9588. https://www.osti.gov/servlets/purl/1223073.
@article{osti_1223073,
title = {Strongly enhanced oxygen ion transport through samarium-doped CeO2 nanopillars in nanocomposite films},
author = {Yang, Sangmo and Lee, Shinbuhm and Jian, Jie and Zhang, Wenrui and Lu, Ping and Jia, Quanxi and Wang, Haiyan and Noh, Tae Won and Kalinin, Sergei V. and MacManus-Driscoll, Judith L.},
abstractNote = {Enhancement of oxygen ion conductivity in oxides is important for low-temperature (<500 °C) operation of solid oxide fuel cells, sensors and other ionotronic devices. While huge ion conductivity has been demonstrated in planar heterostructure films, there has been considerable debate over the origin of the conductivity enhancement, in part because of the difficulties of probing buried ion transport channels. Here we create a practical geometry for device miniaturization, consisting of highly crystalline micrometre-thick vertical nanocolumns of Sm-doped CeO2 embedded in supporting matrices of SrTiO3. The ionic conductivity is higher by one order of magnitude than plain Sm-doped CeO2 films. By using scanning probe microscopy, we show that the fast ion-conducting channels are not exclusively restricted to the interface but also are localized at the Sm-doped CeO2 nanopillars. In conclusion, this work offers a pathway to realize spatially localized fast ion transport in oxides of micrometre thickness.},
doi = {10.1038/ncomms9588},
journal = {Nature Communications},
number = ,
volume = 6,
place = {United States},
year = {Thu Oct 08 00:00:00 EDT 2015},
month = {Thu Oct 08 00:00:00 EDT 2015}
}
Web of Science
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