Direct Synthesis of Iron Oxide Nanopowders by the Combustion Approach: Reaction Mechanism and Properties
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- 作者：Kishori Deshpande ; Alexander Mukasyan ; and Arvind Varma
- 刊名：Chemistry of Materials
- 出版年：2004
- 出版时间：November 30, 2004
- 年：2004
- 卷：16
- 期：24
- 页码：4896 - 4904
- 全文大小：1342K
- 年卷期：v.16,no.24(November 30, 2004)
- ISSN：1520-5002
文摘
Solution combustion synthesis of different oxides involves a self-sustained reaction betweenan oxidizer (e.g., metal nitrate) and a fuel (e.g., glycine, hydrazine). The mechanism ofsynthesis for three major iron oxide phases, i.e., 
- and 
-Fe2O3 and Fe3O4, using thecombustion approach and a combination of simple precursors such as iron nitrate and oxalate,as well as different fuels, is investigated. Based on the obtained fundamental knowledge,for the first time in the literature, the above powders with well-crystalline structures andsurface areas in the range 50-175 m2/g are produced using a single approach whilesimultaneously avoiding additional calcination procedures. It is also shown that utilizingcomplex fuels and complex oxidizers is an attractive methodology to control the productcomposition and properties.
- and -Fe2O3 and Fe3O4, using thecombustion approach and a combination of simple precursors such as iron nitrate and oxalate,as well as different fuels, is investigated. Based on the obtained fundamental knowledge,for the first time in the literature, the above powders with well-crystalline structures andsurface areas in the range 50-175 m2/g are produced using a single approach whilesimultaneously avoiding additional calcination procedures. It is also shown that utilizingcomplex fuels and complex oxidizers is an attractive methodology to control the productcomposition and properties.