锤状磁性复合胶体粒子α-Fe 2 O 3 @SiO 2 的可控合成
发布时间：2021-01-25 06:10
本论文采用水热法合成了不同形貌和尺寸的锤状赤铁矿（α-Fe2O3）磁性纳米粒子,以此作为前驱体进行二氧化硅（SiO2）半导体生长,最终形成锤状α-Fe2O3@SiO2磁性纳米复合粒子。具体研究了合成条件包括试剂的类型及其浓度、反应时间、温度等对水热法制备赤铁矿纳米颗粒形状和尺寸的影响,同时研究了反应时间对合成α-Fe2O3/SiO2磁性纳米复合粒子形状控制如硅段长度和宽度的影响。本工作的研究结果为进一步拓展α-Fe2O3磁性复合材料的合成及可应用范围提供了一种高效、简单且可规模化制备的新方法。采用简单的水热法进行α-Fe2O3磁性纳米粒子的化学可控合成,探讨了氢氧化铁（Fe（OH）3）溶剂浓度、硫酸根阴离子(SO42-)浓度以及反应时间对α...
【文章来源】：哈尔滨工业大学黑龙江省 211工程院校 985工程院校
【文章页数】：75 页
【学位级别】：硕士
【文章目录】：
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
本文编号：2998724
【文章来源】：哈尔滨工业大学黑龙江省 211工程院校 985工程院校
【文章页数】：75 页
【学位级别】：硕士
【文章目录】：
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
本文编号：2998724
本文链接：https://www.wllwen.com/kejilunwen/cailiaohuaxuelunwen/2998724.html
