本論文采用水熱法合成了不同形貌和尺寸的錘狀赤鐵礦（α-Fe₂O₃）磁性納米粒子,以此作為前驅(qū)體進(jìn)行二氧化硅（SiO₂）半導(dǎo)體生長,最終形成錘狀α-Fe₂O₃@SiO₂磁性納米復(fù)合粒子。具體研究了合成條件包括試劑的類型及其濃度、反應(yīng)時(shí)間、溫度等對(duì)水熱法制備赤鐵礦納米顆粒形狀和尺寸的影響,同時(shí)研究了反應(yīng)時(shí)間對(duì)合成α-Fe₂O₃/SiO₂磁性納米復(fù)合粒子形狀控制如硅段長度和寬度的影響。本工作的研究結(jié)果為進(jìn)一步拓展α-Fe₂O₃磁性復(fù)合材料的合成及可應(yīng)用范圍提供了一種高效、簡(jiǎn)單且可規(guī)�；苽涞男路椒�。采用簡(jiǎn)單的水熱法進(jìn)行α-Fe₂O₃磁性納米粒子的化學(xué)可控合成,探討了氫氧化鐵（Fe（OH）₃）溶劑濃度、硫酸根陰離子(SO₄^2-)濃度以及反應(yīng)時(shí)間對(duì)α... 

【文章來源】：哈爾濱工業(yè)大學(xué)黑龍江省 211工程院校 985工程院校

【文章頁數(shù)】：75 頁

【學(xué)位級(jí)別】：碩士

【文章目錄】：
摘要
Abstract
Chapter1 Introduction
    1.1.The Source of Research,Research Back Ground and Significance
        1.1.1.The Source of the Research
        1.1.2.Research Back Ground and Significance of this Thesis
    1.2.Current Research Status and Analysis of the Literature
        1.2.1.Research Inside China
        1.2.2.Research Outside China
    1.3.Iron Oxides
        1.3.1.Magnetic Behavior of Iron Oxides
        1.3.2.Synthesis and Optical Properties of Hematite Particles
        1.3.3.Magnetic Materials and Their Chemical Synthesis
        1.3.4.Synthesis Mechanism of Magnetic Iron Oxide Nanoparticles
        1.3.5.Magnetic Fields and Their Principles of Magnetic Actuation
    1.4.Applications of Magnetic Iron Oxide Nanoparticles
    1.5.Fuel–Free Micro-/nano Motors
    1.6.Main Research Contents
Chapter2 Research Materials and Methods
    2.1.Experimental Reagents
    2.2.Instruments and Experimental Equipment
    2.3.Different Synthesis Methods of Magnetite Micro Particles
    2.4.Experimental Methods
        2.4.1.Synthesis of Peanut Shape Hematite Micro Particles
        2.4.2.Synthesis Different Morphology of Hematite Particles
2O₃@SiO₂ Particles">        2.4.3.Seeded Growth of Silicon Hammer-like-Fe₂O₃@SiO₂ Particles
    2.5.Characterization Techniques
        2.5.1.Scanning Electron Microscopy（SEM）
        2.5.2.Optical Inverted Microscope
2O₃） Particles">Chapter3 Synthesis of Hematite（α-Fe₂O₃） Particles
    3.1.Introduction
2O₃）Particle">    3.2.Synthesis of Hematite（α-Fe₂O₃）Particle
    3.3.Characterization Techniques of Hematite Particles
    3.4.Result and Discussion
        3.4.1.Shape Control
        3.4.2.Synthesis of Hematite Particles with Different Morphologies
        3.4.3.Concentration of Sulfate Ions Effect on Synthesis of Hematite Particles
        3.4.4.Effect of Reaction Time on the Synthesis of Hematite Particles
3 Gel on Particle Size">        3.4.5.Effect of Preparation Conditions of the Fe（OH）₃ Gel on Particle Size
    3.5.Brief Summary
2O₃@SiO₂ Hammer Particles">Chapter4 Seeded Growth ofα-Fe₂O₃@SiO₂ Hammer Particles
    4.1.Introduction
2O₃@SiO₂ Hammer Particles">    4.2.Seed Growth ofα-Fe₂O₃@SiO₂ Hammer Particles
    4.3.Characterization Methods
    4.4.Result and Discussion
        4.4.1.Synthesis of Hammer like Hematite Particles with Peanut Seed
        4.4.2.Synthesis of Hammer like Hematite Particles with Different Seed
        4.4.3.Synthesis Peanut Seed by Regulation of the Growth Temperature
    4.5.Brief Summary
Conclusion
Reference
Acknowledgements
Biography



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