类似花状结构介晶钴的大规模控制合成及磁性能

引用本文: 关明云, 简妍, 孙建华, 徐正. 类似花状结构介晶钴的大规模控制合成及磁性能[J]. 无机化学学报, 2015, (3): 619-626. doi: 10.11862/CJIC.2015.084 shu

Citation: GUAN Ming-Yun, JIAN Yan, SUN Jian-Hua, XU Zheng. Flower-Like Mesocrystal Cobalt: Controllable Synthesis in Large Scale and Magnetic Property[J]. Chinese Journal of Inorganic Chemistry, 2015, (3): 619-626. doi: 10.11862/CJIC.2015.084 shu

类似花状结构介晶钴的大规模控制合成及磁性能

1.
1 江苏理工学院化学与环境工程学院, 江苏省贵金属深加工及应用重点建设实验室, 常州 213001;
2.
2 南京大学化学与化工学院, 配位化学国家重点实验室, 南京 210093
基金项目:
国家973重点建设项目基础研究项目(No.2007CB936302) (No.2007CB936302)

国家自然科学基金-面上项目(No.21373103) (No.21373103)

江苏省自然科学基金-面上项目 (No.BK2011260)资助项目。 (No.BK2011260)

摘要: 以二乙烯三胺(DETA)作为配位剂, 快速合成了纳米粒子定向组装构成的类似花状的介晶钴。通过控制反应的速率和配位剂的种类, 依次获得了精美的钴花、差形貌的枝晶、由纳米粒子或纳米片构成的微球。配位剂在介晶钴的形成过程中起了很重要的作用。探讨了介晶钴花的形成机理。介晶钴不但具有钴纳米晶的性能(在300 K时矫顽力260 Oe), 而且拥有块体钴的性能(饱和磁化强度168 emu·g^-1)。合成方法简便、有效且具有较高的产率。

关键词:

钴;晶体组装;介晶;取向搭接

English

Flower-Like Mesocrystal Cobalt: Controllable Synthesis in Large Scale and Magnetic Property

1.
1 Jiangsu Key Laboratory of Precious Metals Chemistry, School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou, Jiangsu 213001, China;
2.
2 State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
Received Date: 03 November 2014
Fund Project:
国家973重点建设项目基础研究项目(No.2007CB936302)

国家自然科学基金-面上项目(No.21373103)

江苏省自然科学基金-面上项目 (No.BK2011260)资助项目。

Abstract: Using diethylenetriamine (DETA) as coordination agent, a well-defined flower-like cobalt mesocrystal was synthesized rapidly by nanoparticles self assembly in oriented fashion. By adjusting reaction rate and kind of coordination agents, morphologies of cobalt can be transformed from nice-look flower, via poor-look dendrite, to microsphere composed of nanoparticles or nanoplates. DETA plays an important role in the formation process of cobalt mesocrystal. The possible formation mechanism is proposed. The cobalt mesocrystals not only exhibit Co nanocrystals property (an enhanced coercive force being 260 Oe at 300 K), but also have bulk Co property (saturation magnetization being 168 emu·g^-1). The synthesis method in large scale is facile and effective with high yield.

Key words:

cobalt;crystallization assembly;mesocrystal;oriented attachment

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

类似花状结构介晶钴的大规模控制合成及磁性能

English

Flower-Like Mesocrystal Cobalt: Controllable Synthesis in Large Scale and Magnetic Property

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

类似花状结构介晶钴的大规模控制合成及磁性能

English

Flower-Like Mesocrystal Cobalt: Controllable Synthesis in Large Scale and Magnetic Property

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

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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