期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 120, 期 26, 页码 14337-14344出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.6b02279
关键词
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资金
- Engineering and Physical Sciences Research Council (EPSRC)
- School of Physical Sciences, University of Kent
The ionic conductivity and activity of a material, such as ceria, is central to its exploitation in applications such as fuel cells or catalysis. Grain boundaries (GB) influence profoundly the ionic conductivity and activity of a material. Accordingly, the ability to control GB concentrations is pivotal to these applications. Here, we show that Oswald ripening can be induced by applying uniaxial force. In particular, grain boundaries are purged to facilitate single nanocrystals from polycrystalline precursors. Our simulations thus predict mechanisms for strain tunable properties.
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