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The defense date of the thesis is 2014-08-01
The current date is 2019-04-23
This thesis will be accessible at 2064-08-01
URN etd-0801114-165442 Statistics This thesis had been viewed 788 times. Download 0 times. Author Yu-Han Chien Author's Email Address firstname.lastname@example.org Department Materials Engineering Year 2013 Semester 2 Degree Master Type of Document Master's Thesis Language English Page Count 74 Title The Synthesis and Characterization of Iron Oxide and Gold/Iron Oxide Nanorods Keyword gold ionic liquid iron oxide nanorods nanorods iron oxide ionic liquid gold Abstract In the past decades, one-dimensional nanomaterials and gold nanoparticles have been attached much attention because of its novel properties in biomedical field. The purpose of this study is combining them, and then developed a new type of nano gold/iron oxide nanorods composites. The structures, morphologies and magnetic properties of the synthesized nanocomposites are investigated in this study.
Synthesis of iron oxide nanorods in ionic liquid with surfactants including oleic acid and oleylamine, which are commonly used as surface capping agents for size and shape control in molecular solvents, can be employed for making morphologically in ionic liquid. Iron pentacarbonyl is thermally decomposed at elevated temperatures in ionic liquid and subsequently form nanoparticles. Furthermore, the iron oxide nanorods are used as supporter to coating gold nanoparticles by photosynthesis using hard X-ray radiation of 1A beam line at National Synchrotron Radiation Research Center, Taiwan (NSRRC) and HAuCl4•3H2O as precursors.
The results show that rod-shaped nanostructures of iron oxide can be synthesized successfully in ionic liquid. The concentration of precursors and thermal process can be used to control the size and morphologies of iron oxide nanorods. The saturated magnetizations of gold/iron oxide nanorods decrease with the added amount of gold. Different thickness of gold layers will strongly influence on its magnetic properties.
Advisor Committee Hong-Ming Lin - advisor
Chung-Kwei Lin - co-chair
Wen-Jang Chen - co-chair
Yeu-Kuang Hwu - co-chair
Yuh-Jing Chiou - co-chair
Files Date of Defense 2014-07-09 Date of Submission 2014-08-01