oC有助于形成純相、結(jié)晶高的α-Fe。納米鐵粉被X射線衍射(XRD)、透射電子顯微鏡(TEM)、振動(dòng)樣品磁強(qiáng)計(jì)(VSM)進(jìn)行了表征,形貌結(jié)果表明產(chǎn)物形成了粒徑在30nm左右的近球形的納米顆粒。磁滯回線說明了納米鐵顆粒的飽和磁化強(qiáng)度為198.97 emu/g,作為磁性材料具有很好的鐵磁性能。一步還原法生產(chǎn)顆粒粒徑分布窄、可控、流程短,可用于大規(guī)模生產(chǎn)。"/>

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一步還原法制備納米鐵粉
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西安建筑科技大學(xué) 冶金工程學(xué)院,西安建筑科技大學(xué) 冶金工程學(xué)院,西安建筑科技大學(xué) 冶金工程學(xué)院,西安建筑科技大學(xué) 冶金工程學(xué)院,西安建筑科技大學(xué) 冶金工程學(xué)院,西安建筑科技大學(xué) 冶金工程學(xué)院,西安建筑科技大學(xué) 冶金工程學(xué)院,金堆城鉬業(yè)股份有限公司,金堆城鉬業(yè)股份有限公司

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Synthesis of Fe nanoparticles via one-step reduction method
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School of Metallurgy Engineering,Xi’ an University of Architecture and Technology,Xi’ an,School of Metallurgy Engineering,Xi’ an University of Architecture and Technology,Xi’ an,School of Metallurgy Engineering,Xi’ an University of Architecture and Technology,Xi’ an,School of Metallurgy Engineering,Xi’ an University of Architecture and Technology,Xi’ an,School of Metallurgy Engineering,Xi’ an University of Architecture and Technology,Xi’ an,School of Metallurgy Engineering,Xi’ an University of Architecture and Technology,Xi’ an,School of Metallurgy Engineering,Xi’ an University of Architecture and Technology,Xi’ an,,

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    本文采用一種新方法——一步還原法制備了納米鐵粉顆粒。過量的檸檬酸在620oC有助于形成純相、結(jié)晶高的α-Fe。納米鐵粉被X射線衍射(XRD)、透射電子顯微鏡(TEM)、振動(dòng)樣品磁強(qiáng)計(jì)(VSM)進(jìn)行了表征,形貌結(jié)果表明產(chǎn)物形成了粒徑在30nm左右的近球形的納米顆粒。磁滯回線說明了納米鐵顆粒的飽和磁化強(qiáng)度為198.97 emu/g,作為磁性材料具有很好的鐵磁性能。一步還原法生產(chǎn)顆粒粒徑分布窄、可控、流程短,可用于大規(guī)模生產(chǎn)。

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    In the present work, the Fe nanoparticles were synthesized via a novel method one-step reduction method. The excessive citric acid helps to obtain pure and high crystallinity α-Fe and the appropriate temperature (at 620 oC). The Fe nanoparticles were carefully characterized by the X-ray diffraction, transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM). The morphological characterization indicates that the Fe nanoparticles present spherical shape with diameter of 30 nm. The magnetization hysteresis loops reveal the high saturation magnetization (Ms=198.97 emu/g) and the good ferromagnetic behavior of the magnetic materials. The one-step reduction method for nanoparticles synthesis has the advantages of controllable, short process, large-scale production, and will be an important method of producing nanoparticles.

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胡平,康路,楊軍,楊帆,王快社,杜金晶,楊占林,曹維成,劉東新.一步還原法制備納米鐵粉[J].稀有金屬材料與工程,2016,45(12):3112~3114.[Ping HU, Lu KANG, Jun YANG, Fan YANG, Kuai-she WANG, Jinjing DU, Zhanlin YANG, Weicheng CAO, Dongxin LIU. Synthesis of Fe nanoparticles via one-step reduction method[J]. Rare Metal Materials and Engineering,2016,45(12):3112~3114.]
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  • 收稿日期:2016-07-16
  • 最后修改日期:2016-09-21
  • 錄用日期:2016-09-27
  • 在線發(fā)布日期: 2017-02-06
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