Lauric acid template synthesis of thermally stable lamellar crystalline zirconia via a reflux-hydrothermal route

• DOI: 10.1016/j.matlet.2014.02.033
• Publication Date: 2014-02-17T11:33:42Z
• Authors: Xiujie Ji; Chaoya Liu; Chao Liu; Jia Li; Xiaofei Yu; Penghe Su; Jieru Huang; Jianlong Jia; Jie Wu; Luyang Chen; Cuihong Chen; Yajing Wu; Ying Fan; Jing Lin; Bowen Cheng; Chengchun Tang
• Keywords: Superstructure; Thermostability; Hydrothermal Synthesis

Abstract Thermally stable lamellar crystalline zirconia (TSLCZ) was prepared by a reflux-hydrothermal hybrid method. ZrOCl 2 , NaOH and lauric acid (LA) were used as Zr source, precipitant and supramolecular template, respectively. TSLCZ is well crystallized and exhibits ordered lamellar superstructure and good thermostability at 500 °C. TEM confirmed the 1.0 nm periodic lamellar superstructure detected and calculated by SAXRD (1.04 nm), which is composed of 0.5 nm-thick framework and pore layers alternatively. The synthesis mechanism of TSLCZ via a LA template was proposed and discussed in thermodynamics.