期刊
CRYSTENGCOMM
卷 19, 期 41, 页码 6170-6181出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ce01342f
关键词
-
资金
- Defense Research Development Organization, Government of India under the DRDO - Bharathiar University Centre for Life Sciences (DRDO - BU CLS)
A facile surfactant and calcination free phase transformation from hematite (alpha-Fe2O3) to magnetite (Fe3O4) and lithium ferrite (LiFeO2) was achieved by the self-reduction of the Fe3+ ion in [Fe(CN)(6)](3-) anions in the presence of alkali hydroxides (LiOH center dot H2O, NaOH and KOH) under hydrothermal conditions. It was noted that the CN-ion played a major role in the reduction of Fe3+ to Fe2+. Here, the alkali hydroxides acted as the reduction catalysts, as well as the structure directing agents. Hematite, magnetite and lithium ferrite exhibited different morphologies, such as dendrites, hexagonal discs, hexagonal rings, truncated spheres, irregular particles, irregular spheres, and assorted structures. The detailed reaction mechanism of the different phases and the growth mechanism of the different shapes have been investigated. The phase dependent magnetic properties have been explained based on the presence of a Fe2+ ion in the iron oxide crystal system.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据