摘要
This paper presents a reactive ion exchange synthesis method of nano-CeO2 with positive cerium preexchanged ion exchange resin as precursor and ( NH4) 2CO3 as precipitant. The resultant precipitate was dried at 100 ℃ for 12 h and then was calcined at 500 K in air. The effects of ion exchange temperature and reaction time on the diameter of CeO2 particle were discussed. The TEM images show that the samples prepared with one step reactive ion exchange method are composed of nano-club with the length about 300 nm.
This paper presents a reactive ion exchange synthesis method of nano-CeO2 with positive cerium preexchanged ion exchange resin as precursor and (NH4 )2 CO3 as precipitant. The resultant precipitate was dried at 100 ℃ for 12 h and then was calcined at 500 K in air. The effects of ion exchange temperature and reaction time on the diameter of CcO2 particle were discussed. The TEM images show that the samples prepared with one step reactive ion exchange method are composed of nano-club with the length about 300 nm.
基金
Sponsored by the National Natural Science Foundation of China( Grant No 20806011)
the Dalian Science and Technology Foundation of China( GrantNo 2008A14GX240)