Effect of different fuels on the alumina-ceria composite powders synthesized by sol-gel auto combustion method

被引：14

作者：

Chandradass, J. ^{[1
]}

Balasubramanian, M. ^{[2
]}

Bae, Dong-sik ^{[3
]}

Kim, Ki Hyeon ^{[1
]}

机构：

[1] Yeungnom Univ Gyeongsan, Dept Phys, Gyeongsangbuk Do 712749, South Korea

[2] Indian Inst Technol, Dept Met & Mat Engn, Madras 600036, Tamil Nadu, India

[3] Changwon Natl Univ, Sch Nano & Adv Mat Engn, Gyeongnam 641773, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 479卷 / 1-2期

关键词：

Chemical synthesis; Sol-gel synthesis; Scanning electron microscopy; X-ray diffraction; Thermal analysis; MIXED OXIDES; CITRATE;

D O I：

10.1016/j.jallcom.2008.12.119

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this research, a sol-gel auto combustion route has been proposed to synthesize alumina-ceria composite powder, using aluminium nitrate, cerium(III) nitrate hexahydrate and various fuels such as citric acid, acetyl acetone and oxalic acid. DTA shows the phase transformation of alpha-Al2O3 and CeO2 varies with fuel. XRD confirms the formation of alpha-Al2O3 and CeO2 phase irrespective of fuels at 1200 degrees C. X-ray line broadening results showed smallest crystallite size of alpha-Al2O3 and CeO2 is produced in the presence of citric acid. SEM micrograph revealed homogenous distribution of ceria nanoparticle in the alumina matrix. FTIR analysis show peaks at 460 and 400 cm(-1) corresponds to alpha-Al2O3 and CeO2 formation at 1200 degrees C. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：363 / 367

页数：5

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