Stabilization of mesoporous nanocrystalline zirconia with Laponite

The mesoporous nanocrystalline zircoina was synthesized via solid state reaction--structure directing method in the presence of Laponite. The introduction of Laponite renders the higher thermal stability and lamellar track to the zirconia. Laponite acts as inhibitor for crystal growth and also hard template for the mesostructure. The role of Laponite is attributed to the interaction between the zirconia precursors and the nano-platelets of Laponite via the bridge of hydrophilic segments of surfactant. It results in the formation of Zr-O-Mg-O-Si frameworks in the direction of Laponite layer with the condensation of frameworks during the calcination process, which contributes the higher stability and lamellar structure to the nano-sized zirconia samples.

作 者： LIU Xinmei YAN Zifeng LU Gaoqing   作者單位： LIU Xinmei,YAN Zifeng(Key Laboratory for Heavy Oil Processing, Key Laboratory of Catalysis, CNPC, University of Petroleum, Dongying 257062, China;ARC Centre for Functional Nanomaterials, University of Queensland, QLD 4072 Australia)

LU Gaoqing(ARC Centre for Functional Nanomaterials, University of Queensland, QLD 4072 Australia) 

刊 名： 科學(xué)通報（英文版）  SCI 英文刊名： CHINESE SCIENCE BULLETIN  年，卷(期)： 2005 50(4)  分類號： P5  關(guān)鍵詞： mesoporous nanocrystalline zirconia   Laponite   stabilization mechanism  

【Stabilization of mesoporous nanocrys】相關(guān)文章：

Electrogenerated chemiluminescence sensor for the determination of metoclopramide using ordered mesoporous carbon for im04-28

Large Pore Mesoporous MCM-41 Templated from Cetyltriethylammonium Bromide04-28

Frequency stabilization of diode laser to 1.637μm based on the methane absorption line04-29

Non-smooth finite-time stabilization for a class of nonlinear systems04-29

Plants grown on sewage sludge in South China and its relevance to sludge stabilization and metal removal04-25

EXTERNAL-LOOP AIRLIFT MAGNETICALLY STABILIZED BED--MINIMUM STABILIZATION AND FLUIDIZATION CONDITIONS04-29