Synthesis of nanocrystalline wollastonite powders by citrate-nitrate gel combustion method

被引：38

作者：

Huang, Xiang-Hui ^{[1
]}

Chang, Jiang ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Biomat & Tissue Engn Res Ctr, Shanghai 200050, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2009年 / 115卷 / 01期

基金：

中国博士后科学基金;

关键词：

Inorganic compounds; Chemical synthesis; Electron microscopy; AUTO-COMBUSTION; NANOPARTICLES; PRECURSORS; PARTICLES; OXIDIZER;

D O I：

10.1016/j.matchemphys.2008.11.066

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Wollastonite was synthesized for the first time by a citrate-nitrate gel combustion method using citric acid as a reductant/fuel and nitrate as an oxidant. The yielding powders calcined at 650 degrees C for 2 h were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and N-2 adsorption measurements (BET). The XRD data revealed that the resultant product was a pure phase of wollastonite without any other impurities. The SEM and BET results showed that the product was highly porous with a relatively high specific surface area of 40.69 m(2) g(-1). The average grain size calculated from BET measurements of calcining powders is found to be 50.7 nm. (C) 2008 Elsevier B.V. All rights reserved.

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页码：1 / 4

页数：4

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