• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nanotechnology >Fe_3O_4 nanobelts: One-pot and template-free synthesis, magnetic property, and application for lithium storage
【24h】

Fe_3O_4 nanobelts: One-pot and template-free synthesis, magnetic property, and application for lithium storage

机译：Fe_3O_4纳米带：一锅无模板合成，磁性和在锂存储中的应用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We report on the synthesis of Fe_3O_4 nanobelts with good magnetic properties and lithium storage performances by using a one-pot and template-free hydrothermal method with Na_2CO_3 and FeCl 2 as the reactants. By controlling the amount of Na_2CO_3, we obtained pure Fe_3O_4 nanobelts with widths of 0.1-2μm, thicknesses of about 10 nm and lengths of 20-30μm, showing a high aspect ratio. XRD and SAED patterns of the obtained sample demonstrated that the Fe_3O_4 nanobelts were well crystallized. Nitrogen adsorption/desorption measurements showed that Fe_3O_4 nanobelts manifested a BET _surface area of 25.04m 2g 1. Further experiments demonstrated that the amount of Na_2CO_3 played an important role in controlling both the morphologies and crystal structures of the products. The formation mechanism of Fe_3O_4 nanobelts was also studied. More importantly, we found that the Fe_3O_4 nanobelts showed magnetic properties with a magnetic saturation value of 77.0emug~1 and lithium storage performances with a high initial discharge capacity of 1090mAhg~1 at a current rate of 500mAg~1, and a reversible capacity of 404mAhg ~1 retained after 60 charge/discharge cycles. These results suggest that the Fe_3O_4 nanobelts might be promising for magnetic and lithium battery applications.
机译：我们报告了使用Na_2CO_3和FeCl 2作为反应物的单锅无模板水热法合成具有良好磁性和锂储存性能的Fe_3O_4纳米带。通过控制Na_2CO_3的含量，我们获得了纯Fe_3O_4纳米带，其宽度为0.1-2μm，厚度为约10 nm，长度为20-30μm，显示出高的长宽比。所得样品的XRD和SAED图谱表明Fe_3O_4纳米带良好地结晶。氮吸附/解吸测量表明，Fe_3O_4纳米带的BET表面积为25.04m 2g1。进一步的实验表明，Na_2CO_3的含量在控制产品的形貌和晶体结构方面都起着重要作用。还研究了Fe_3O_4纳米带的形成机理。更重要的是，我们发现Fe_3O_4纳米带具有磁特性，磁饱和值为77.0emug〜1，在500mAg〜1的电流速率下具有1090mAhg〜1的高初始放电容量和可逆容量的锂存储性能。 60次充电/放电循环后保留404mAhg〜1。这些结果表明，Fe_3O_4纳米带在磁性和锂电池应用中可能很有希望。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号