Novel approach to the synthesis of core-shell particles by sacrificial polymer shell method

作者：Fabbri Paola; Ghahari Mehdi^*; Pilati Francesco; Ebadzadeh Touradj; Aghababazadeh Roya; Kavei Ghasem

来源：Materials Letters, 2010, 64(20): 2265-2268.

DOI：10.1016/j.matlet.2010.07.033

• Sol-gel preparation
• Microstructure
• Core-shell particles
• Nanocoating

In this work a new approach has been developed for the synthesis of SiO(2)@Y(2)O(3) particles with core-shell structure. The method is based on the synthesis of a covalently bonded sacrificial polymer shell grown onto silica particles. It is suitable to promote and stabilize the adsorption of different ions, namely Yttrium from its nitrate solution. After calcination and consequent elimination of the sacrificial polymer shell, the SiO(2)@Y(2)O(3) core-shell particles are obtained. Results reveal that the shell thickness of these core-shell particles is higher and more uniform than that of particles prepared without sacrificial polymer shell.

• 出版日期2010-10-31