引用本文:
【打印本页】   【HTML】   【下载PDF全文】   View/Add Comment  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 2022次   下载 1388 本文二维码信息
码上扫一扫!
分享到: 微信 更多
Synthesis and Magnetic Properties of Co3O4 Nanoflowers
Yuan-guang Zhang*,You-cun Chen,Yin-guo Zhao
Author NameAffiliationE-mail
Yuan-guang Zhang* Department of Chemistry, Anqing Normal College, Anqing 246011, China ygz@aqtc.edu.cn 
You-cun Chen Department of Chemistry, Anqing Normal College, Anqing 246011, China  
Yin-guo Zhao Department of Chemistry, Anqing Normal College, Anqing 246011, China  
Abstract:
Co3O4 nanoflowers were prepared through a sequential process of a hydrothermal reaction and heat treatment. The as-synthesized products were characterized by powder X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and infrared spectrum. These nanoflowers consist of numerous Co3O4 nanofibers, which have diameters of 20-40 nm, and lengths ranging from 100 nm to 500 nm. They have pore structures and Brunauer-Emmett-Teller surface area of ?34.61 m2/g. The temperature dependence curves of magnetization in zero-field-cooled conditions and field-cooled indicate mainly antiferromagnetism and weak ferromagnetism of Co3O4 nanoflowers at blocking temperature of ?34 K respectively.
Key words:  Co3O4, Synthesis, Magnetic properties, Nanoflowers
FundProject:the National Natural Science Foundation of China (No.20371002)
Co3O4纳米花的合成及其磁性
张元广*,陈友存,赵英国
摘要:
通过水热和热处理的方法,制备了产物Co3O4纳米花. 用X射线粉末衍射、场发射扫锚电镜、透射电镜和红外光谱等手段对产物进行了表征. 结果表明,产物纳米花是由大量的Co3O4纳米须组成,纳 米须的直径为20?40 nm,长度为100?500 nm,具有纳米孔结构,比表面积约为34.61 m2/g. 磁性测量表明,在零场冷却条件下,产物主要表现为反铁磁性;在加场冷却条件下,闭锁温度约为34K时,产物主要表现为铁磁性.
关键词:  Co3O4,合成,磁性,纳米花
DOI:10.1088/1674-0068/20/05/601-606
分类号: