以简单的种子-固相法合成特殊形貌铁氧体

引用本文: 侯相钰, 侯纯扬, 冯静, 王维珍, 张正. 以简单的种子-固相法合成特殊形貌铁氧体[J]. 无机化学学报, 2013, 29(4): 855-860. doi: 10.3969/j.issn.1001-4861.2013.00.059 shu

Citation: HOU Xiang-Yu, HOU Chun-Yang, FENG Jing, WANG Wei-Zhen, ZHANG Zheng. A Simple Seed-Assisted Solid State Method for Synthesis of Special Shaped Ferrites[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(4): 855-860. doi: 10.3969/j.issn.1001-4861.2013.00.059 shu

以简单的种子-固相法合成特殊形貌铁氧体

基金项目:
中国博士后基金(No.2011M500511)国家海洋局青年海洋科学基金(No.2012547)资助项目。 (No.2011M500511)国家海洋局青年海洋科学基金(No.2012547)

摘要: 通过一种简单的种子-固相法合成了橄榄球形铜铁氧体和纳米线形镍铁氧体, 合成过程中不需使用任何模板或表面活性剂。通过对产物的晶体结构、形貌和磁特性研究表明:由于种子能为新相的形成提供晶核, 种子-固相法有利于制得纯度较高且形貌可控的铁氧体。所制得CuFe₂O₄的形貌为宽0.4 μm、长0.8 μm且表面有不规则凹陷的橄榄形粒子, NiFe₂O₄为直径约 10 nm、长径比大于50:1的纳米线。室温下, 橄榄球形CuFe₂O₄和纳米线形NiFe₂O₄均表现为典型的超顺磁性。在相同合成条件下, 传统固相法合成的两种铁氧体均为纯度较低的铁磁性纳米颗粒。

关键词:

铁氧体;固相法;种子;特殊形貌;超顺磁性

English

A Simple Seed-Assisted Solid State Method for Synthesis of Special Shaped Ferrites

1.
1 College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, Shandong 266100, China;
Received Date: 02 September 2012
Fund Project:
中国博士后基金(No.2011M500511)国家海洋局青年海洋科学基金(No.2012547)资助项目。

Abstract: CuFe₂O₄ olivary particle and NiFe₂O₄ nanowire were synthesized by a simple seed-assisted solid state method, without any templates and surfactant assistants. The crystal structures, morphologies and magnetic properties were investigated. The results indicate that the seeds can provide crystal nucleus for generating new ferrite phase. At the same time, the seeds are beneficial for improving the purity and for realizing the shape control. The CuFe₂O₄ olivary particle, covered with irregular hollows, is about 0.4 μm in width and 0.8 μm in length. The diameter of the NiFe₂O₄ nanowire is about 10 nm, and the ratio of length to diameter could be up to 50:1. Both CuFe₂O₄ olivary particle and NiFe₂O₄ nanowire show typical superparamagnetic property at room temperature. However, the ferrites synthesized by traditional solid state method at the same condition as the title method show particle morphologies, low purity and ferromagnetic properties. These results suggest seed-assisted solid state method is an effective way to synthesize high purity ferrites with special shape.

Key words:

ferrite;solid state method;seed;special shape;superparamagnetism

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

以简单的种子-固相法合成特殊形貌铁氧体

English

A Simple Seed-Assisted Solid State Method for Synthesis of Special Shaped Ferrites

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

以简单的种子-固相法合成特殊形貌铁氧体

English

A Simple Seed-Assisted Solid State Method for Synthesis of Special Shaped Ferrites

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

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