| 碳包覆纳米铁镍磁性颗粒的合成(英文) | |
| Synthesis of Carbon Coated Nano Fe-Ni Magnetic Particles | |
| 摘要: 通过在双温控的化学气相沉积炉中热解四吡啶并卟啉铁镍混合物，合成了碳包覆铁镍纳米颗粒。原料中四吡啶并卟啉铁镍的质量比为7∶3；扫描电镜和透射电镜的结果显示碳包覆铁镍纳米颗粒形貌均匀，直径为100~300 nm；能谱结果显示碳包覆铁镍纳米颗粒是由铁、镍和碳组成；拉曼光谱证明产物有大量的缺陷存在，可能是由于球状结构上的碎片引起的；此外，磁性能测试表明室温下，碳包覆铁镍纳米颗粒有很高的饱和磁化强度，为56.3 emu·g-1；而其产物的矫顽力趋近于零，呈超顺磁性，适合用于催化剂载体。 | |
| 关键词: 碳包覆铁镍纳米颗粒 化学气相沉积 四吡啶并卟啉铁镍 磁滞曲线 | |
| 基金项目: | |
| Abstract: Carbon coated nano Fe-Ni particles (C-FeNi-Ps) have been synthesized through pyrolysis of metal tetrapyrazinoporphyrazines (MPTpzs, M=Fe2+, Ni2+, mFePTpzs∶mNiPTpzs=7∶3) in a chemical vapor deposition furnace with two heating zones. The obtained C-FeNi-Ps show a uniform hair-bulb-like structure with diameter ranging from 100~300 nm; C-FeNi-Ps consist of C, Fe and Ni, and have lots of defects due to the edge planes on the ball structure, as supported by Raman spectrum. Besides, Hysteresis curve reveals that saturation magnetization (Ms) of C-FeNi-Ps is 56.3 emu·g-1, and magnetic hysteresis tends to be 0, indicating superparamagnetic property, suitable for using as catalyst-support particles. | |
| Keywords: carbon coated nano Fe-Ni particles chemical vapor deposition hysteresis curve metal tetrapyrazinoporphyrazines | |
| 摘要点击次数: 1618 | |
| 全文下载次数: 2444 | |
| 曹高翔,付业伟,孙慧慧,许占位,李贺军,田 松.碳包覆纳米铁镍磁性颗粒的合成(英文)[J].无机化学学报,2011,27(7):1431-1435. | |
| 查看全文 查看/发表评论 下载PDF阅读器 | |
| Support information: | |
|
| |
|
| |
|
| |