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| 论文编号: |
O120090056 |
| 第一作者所在部门: |
610组 |
| 中文论文题目: |
Preparation and magnetic properties of spindle porous iron nanoparticles
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| 英文论文题目: |
Preparation and magnetic properties of spindle porous iron nanoparticles
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| 论文题目英文: |
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| 作者: |
吕宝亮 徐 耀 吴 东 孙予罕
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| 论文出处: |
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| 刊物名称: |
Materials Research Bulletin
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| 年: |
2009
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| 卷: |
44 |
| 期: |
5 |
| 页: |
961-965 |
| 联系作者: |
徐 耀 |
| 收录类别: |
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| 影响因子: |
1.812
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| 摘要: |
Spindle porous iron nanoparticles were firstly synthesized by reducing the pre-synthesized hematite (a-
Fe2O3) spindle particles with hydrogen gas. The products were characterized by X-ray diffraction (XRD),
scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron
spectroscopy (XPS), nitrogen adsorption/desorption isotherms and vibrating sample magnetometry
(VSM). A lattice shrinkage mechanism was employed to explain the formation process of the porous
structure, and the adsorbed phosphate was proposed as a protective shell in the reduction process. N2
adsorption/desorption result showed a Brunauer–Emmett–Teller (BET) surface area of 29.7 m2/g and a
continuous pore size distribution from 2 nmto 100 nm. The magnetic hysteresis loop of the synthesized
iron particles showed a saturation magnetization of 84.65 emu/g and a coercivity of 442.36 Oe at room
temperature. |
| 英文摘要: |
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