Hydrothermal Synthesis of Nanosized CoAl2O4 on ZnAl2O4 Seed Crystallites |
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| Authors: | Zhi-Zhan Chen Er-Wei Shi Yan-Qing Zheng Bing Xiao Ji-Yong Zhuang |
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| Affiliation: | Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China |
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| Abstract: | ZnAl2O4-seeded CoAl2O4, with a core-shell structure, has been prepared under hydrothermal conditions when the Co2+ salt solution is substituted by 10% Zn2+ as a precursor. The ZnAl2O4 seed is generated during the synthesis process. The seeding process can decrease the synthesis temperature from 245° to 230°C and the particle size from 67 to 20 nm. The process can economize the consumption of Co2+ and control the particle size effectively. |
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| Keywords: | seeding synthesis aluminates |
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