东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2005, Vol. 26 ›› Issue (1): 274-276.DOI: -

• 论著 • 上一篇    下一篇

纳米α-Fe_2O_3的燃烧法合成与表征

储刚;翟秀静;符岩;毕诗文   

  1. 东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2005-01-15 发布日期:2013-06-24
  • 通讯作者: Chu, G.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50174016)

Combustion synthesis of α-Fe2O3 nanoparticles and its characterization

Chu, Gang (1); Zhai, Xiu-Jing (1); Fu, Yan (1); Bi, Shi-Wen (1)   

  1. (1) Sch. of Mat. and Metall., Northeastern Univ., Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2005-01-15 Published:2013-06-24
  • Contact: Chu, G.
  • About author:-
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摘要： 用聚乙烯醇(PVA)作为络合剂,与硝酸铁反应,采用燃烧合成法制备出α Fe2O3纳米晶·研究了原料配比对产物性能的影响,通过TEM,FT IR和XRD实验研究了α Fe2O3纳米晶的结构·结果表明,硝酸铁和PVA的摩尔比为1∶0 5时所得到的产物颗粒边缘光滑,粒度分布均匀,燃烧反应充分进行,反应产物为红色颗粒状物质·络合物在150℃反应后的产物经450℃煅烧2h后得到的是纳米α Fe2O3·X射线衍射和红外光谱分析的结果显示,此时有机组分已分解完全·经TEM和XRD新单峰傅氏分析法测定,晶粒尺寸在25nm～40nm之间·

关键词: αFe2O3, 纳米晶, 燃烧合成, XRD, FTIR

Abstract: The nanocrystalline α-Fe2O3 was prepared successfully by the reaction of polyvinyl alcohol (PVA) with ferric nitrate in combustion synthesis, where PVA is complexing agent. The effect of material proportioning on products and the nanocrystalline α-Fe2O3 were investigated experimentally by TEM, FT-IR and XRD. The results show that the product's particle edges are smooth and in uniform particle size distribution with full reaction of combustion when the mole ratio of ferric nitrate to PVA is 1 to 0.5, and the products present red granular substances. Thus, the products got from phenanthroline at 150°C are calcined at 450°C for 2 h so as to obtain nanocrystalline α-Fe2O3. The results of XRD and IR show that the organic fractions have completely been discomposed. By TEM and XRD for particle-size, the grain size is measured in the range from 25 nm to 40 nm.

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