Fractal growth of single-crystal α-Fe2O3:: From dendritic micro-pines to hexagonal micro-snowflakes

被引：47

作者：

He, Kai ^{[1
]}

Xu, Cheng-Yan ^{[1
]}

Zhen, Liang ^{[1
]}

Shao, Wen-Zhu ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 4-5期

关键词：

nanomaterials; crystal growth; magnetic materials; fractal;

D O I：

10.1016/j.matlet.2007.06.082

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

The fractal nanostructures of single-crystal alpha-Fe2O3 with micro-pine and micro-snowflake like morphologies have been synthesized via a hydrothermal route. The crystallinity, composition, purity, morphology and microstructure of the synthesized hematite were characterized by Xray diffraction, Mossbauer spectrometry, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM). A possible growth mechanism for these two kinds of fractal structures was proposed based on careful SEM and TEM observations. The role of the surfactant NP-9 in the conversion of the two kinds of fractal structures was discussed. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：739 / 742

页数：4

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