Synthesis and Magnetic Properties of Nanostructured Iron and Iron Phosphide
碩士 === 國立中正大學 === 化學研究所 === 90 === Abstract In this thesis, three procedures were set to synthesize nanostructured iron and iron phosphide. All the characterizations of our samples have been carried out by Transmission Electron Microscopy (TEM), Energy Dispersive X-ray Spectroscopy (EDS),...
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ndltd-TW-090CCU000650182015-10-13T17:34:57Z http://ndltd.ncl.edu.tw/handle/58330494559921476927 Synthesis and Magnetic Properties of Nanostructured Iron and Iron Phosphide 奈米結構鐵和磷化鐵的合成與磁性研究 Chun-Hu Chen 陳軍互 碩士 國立中正大學 化學研究所 90 Abstract In this thesis, three procedures were set to synthesize nanostructured iron and iron phosphide. All the characterizations of our samples have been carried out by Transmission Electron Microscopy (TEM), Energy Dispersive X-ray Spectroscopy (EDS), Electron diffraction (ED), Inductively Coupled Plasma Atomic Emission Spectometer (ICP-AES) and X-ray Powder Diffraction (XRD). In the first procedure, (η4-1,3-cyclohexadiene)iron tricarbonyl was chosen as precursor and various surfactants and solvents were used to produce iron nanoparticles. The results indicated the refluxing in 1-octanol without any surfactant is the best reaction environment for fabricating iron nanoparticles with uniform size distribution. In the second procedure, each of the three precursors, (η4-1,3- cyclohexadiene) iron tricarbonyl, bis(η5-2,4-cyclohexadiene-1-yl)iron and Fe(CO)5, was mixed with TOPO to thermal reflux at 340oC. Spheric iron nanoparticles were synthesized. In the third procedure, the same steps were carried out as described in the second procedure, and then a certain amount of precursors in TOP were injected into the reactor. 1-D nanostructured iron phosphide was produced, including nanorods and nanowires. In preliminary magnetic measurements, nanoscaled iron and iron phosphide exhibit ferromagnetic and superparamagnetic behavior at low temperatures. The ZFC/FC measurements demonstrated spin-glass property. Kai-Ming Chi 吉凱明 2002 學位論文 ; thesis 74 en_US |
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碩士 === 國立中正大學 === 化學研究所 === 90 === Abstract
In this thesis, three procedures were set to synthesize nanostructured iron and iron phosphide. All the characterizations of our samples have been carried out by Transmission Electron Microscopy (TEM), Energy Dispersive X-ray Spectroscopy (EDS), Electron diffraction (ED), Inductively Coupled Plasma Atomic Emission Spectometer (ICP-AES) and X-ray Powder Diffraction (XRD).
In the first procedure, (η4-1,3-cyclohexadiene)iron tricarbonyl was chosen as precursor and various surfactants and solvents were used to produce iron nanoparticles. The results indicated the refluxing in 1-octanol without any surfactant is the best reaction environment for fabricating iron nanoparticles with uniform size distribution.
In the second procedure, each of the three precursors, (η4-1,3- cyclohexadiene) iron tricarbonyl, bis(η5-2,4-cyclohexadiene-1-yl)iron and Fe(CO)5, was mixed with TOPO to thermal reflux at 340oC. Spheric iron nanoparticles were synthesized.
In the third procedure, the same steps were carried out as described in the second procedure, and then a certain amount of precursors in TOP were injected into the reactor. 1-D nanostructured iron phosphide was produced, including nanorods and nanowires.
In preliminary magnetic measurements, nanoscaled iron and iron phosphide exhibit ferromagnetic and superparamagnetic behavior at low temperatures. The ZFC/FC measurements demonstrated spin-glass property.
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Kai-Ming Chi |
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Kai-Ming Chi Chun-Hu Chen 陳軍互 |
author |
Chun-Hu Chen 陳軍互 |
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Chun-Hu Chen 陳軍互 Synthesis and Magnetic Properties of Nanostructured Iron and Iron Phosphide |
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Chun-Hu Chen |
title |
Synthesis and Magnetic Properties of Nanostructured Iron and Iron Phosphide |
title_short |
Synthesis and Magnetic Properties of Nanostructured Iron and Iron Phosphide |
title_full |
Synthesis and Magnetic Properties of Nanostructured Iron and Iron Phosphide |
title_fullStr |
Synthesis and Magnetic Properties of Nanostructured Iron and Iron Phosphide |
title_full_unstemmed |
Synthesis and Magnetic Properties of Nanostructured Iron and Iron Phosphide |
title_sort |
synthesis and magnetic properties of nanostructured iron and iron phosphide |
publishDate |
2002 |
url |
http://ndltd.ncl.edu.tw/handle/58330494559921476927 |
work_keys_str_mv |
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