Effects of Milling Time and Annealing Schedule on Mechanical Activation Synthesis of Brownmillerite Structural Ca2Fe2O5
作者： Fen Wang , Chun Zhao , Jian Feng Zhu
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.295-297.1099
关键词:
摘要: The brownmillerite structural Ca2Fe2O5is successfully prepared by high energy milling starting from CaCO3and Fe2O3. The composition and transformation of phase and structure with different milling time and annealed at 800 °C for 24 h were characterized by the X-ray powder diffraction (XRD) and scanning electron microscopy (SEM) analysis. The results indicate that the high pure brownmillerite structural Ca2Fe2O5could be efficiently synthesized at lower temperature by the mechanically activated mixtures.
sci-hub.se 参考文章(8)
H.D. Zhou, J.B. Goodenough, Electronic behavior of three oxygen non-stoichiometric Fe4+/Fe3+ oxoperovskites Journal of Solid State Chemistry. ,vol. 178, pp. 3679- 3685 ,(2005) , 10.1016/J.JSSC.2005.09.020
A SHAULA, Y PIVAK, J WAERENBORGH, P GACZYNSKI, A YAREMCHENKO, V KHARTON, Ionic conductivity of brownmillerite-type calcium ferrite under oxidizing conditions Solid State Ionics. ,vol. 177, pp. 2923- 2930 ,(2006) , 10.1016/J.SSI.2006.08.030
Yang Yang, Zhengquan Cao, Yinshan Jiang, Lihua Liu, Yanbin Sun, Photoinduced structural transformation of SrFeO3 and Ca2Fe2O5 during photodegradation of methyl orange Materials Science and Engineering B-advanced Functional Solid-state Materials. ,vol. 132, pp. 311- 314 ,(2006) , 10.1016/J.MSEB.2006.03.031
Emily Asenath-Smith, Indunil N. Lokuhewa, Scott T. Misture, Doreen D. Edwards, p-Type thermoelectric properties of the oxygen-deficient perovskite Ca2Fe2O5 in the brownmillerite structure Journal of Solid State Chemistry. ,vol. 183, pp. 1670- 1677 ,(2010) , 10.1016/J.JSSC.2010.05.016
E Kostić, S Kiss, S Bošković, None, Decrease of the MgA12O4 formation temperature Powder Technology. ,vol. 92, pp. 271- 274 ,(1997) , 10.1016/S0032-5910(97)03248-8
Moshe Ben Sasson, Avner Adin, Fouling mitigation by iron-based electroflocculation in microfiltration: Mechanisms and energy minimization. Water Research. ,vol. 44, pp. 3973- 3981 ,(2010) , 10.1016/J.WATRES.2010.05.002
F. Tavangarian, R. Emadi, A. Shafyei, Influence of mechanical activation and thermal treatment time on nanoparticle forsterite formation mechanism Powder Technology. ,vol. 198, pp. 412- 416 ,(2010) , 10.1016/J.POWTEC.2009.12.007
Hannes Krüger, Volker Kahlenberg, Václav Petříček, Fritz Phillipp, Waltraud Wertl, High-temperature structural phase transition in studied by in-situ X-ray diffraction and transmission electron microscopy Journal of Solid State Chemistry. ,vol. 182, pp. 1515- 1523 ,(2009) , 10.1016/J.JSSC.2009.03.027