Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 22, Issue 18, Pages 9277-9284Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm30669g
Keywords
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Funding
- National Natural Foundation of China [51172047, 50872145, 51102050]
- National Science Foundation for Postdoctoral Scientists of China [20110490647]
- Ministry of Science and Technology of China [2007CB936301, 2009CB930803]
- Shanghai Municipal Education Commission
- Shanghai Education Development Foundation [09SG01]
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A facile hydrothermal-assisted crystallization route for the synthesis of hierarchical magnetic yolk-shell microspheres with mixed barium silicate and barium titanium oxide shells has been developed. Various yolk-shell microspheres with different shell thicknesses and core sizes have been successfully synthesized by controlling the synthetic parameters. The as-synthesized yolk-shell microspheres possess high magnetization, tailored shells, large specific surface area and high porosity, and are demonstrated to be attractive candidate materials for microwave absorption enhancement. Moreover, a possible formation mechanism based on the sacrificial-templating crystallization, dissolution-precipitation and in situ transformation processes is proposed.
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