Journal of Inorganic Materials

• Research Letter • Previous Articles    

Synthesis of Multi-shelled Mn-doped ZnO Hollow Spheres

LI Zheng-Zheng1,2, ZHANG Yong1,2, CHEN Zhi-Zhan1, SHI Er-Wei1   

  1. (1. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; 2. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China)
  • Received:2009-04-20 Revised:2009-06-25 Published:2009-11-20 Online:2010-04-22

Abstract: A simple synthesis method of multi-shelled magnetic Mn-doped ZnO hollow nanospheres were developed with the assistance of carbon templates. The multispheres carbon templates were prepared with two- or three- synthetic steps. The Zn and Mn metal ions in the solution were absorbed onto the functional surface layer of carbon templates. The TEM and SEM images show single-, double-, and triple-shelled hollow spheres are obtained after calcination, and EDS spectrum shows the concentration of Mn is estimated to be 1%. The hollow nanospheres also have outstanding room temperature ferromagnetism magnetic properties. The saturation magnetization (Ms) is 0.032A·m2/kg, and the coercive field (Hc) is 0.781kA/m, respectively.

Key words: nanostructures, doping, oxides, magnetic materials

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