지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2010.12
- 수록면
- 179 - 184 (6page)
이용수
이 논문의 연구 히스토리 (2)
- 이 논문의 후속연구가 궁금하신가요?
- 연관 학술논문 또는 학술발표를 통해 보다 발전된 연구결과를 확인하실 수 있습니다.
- 이 논문의 연구 히스토리 확인하기
초록· 키워드
오류제보하기
We have investigated the effects of post annealing on iron oxide nanoparticles synthesized by the novel hydrothermal synthesis method with the FeSO₄·7H₂O. To investigate the post annealing effect, the as-synthesized iron oxide nanoparticles were annealed at different temperatures in a vacuum chamber. The morphological, structural and magnetic properties of the iron oxide nanoparticles were investigated with high resolution X-ray powder diffraction (XRD), high resolution transmission electron microscopy (HRTEM), Mossbauer spectroscopy, and vibrating sample magnetometer analysis. According to the XRD and HRTEM analysis results, as-synthesized iron oxide nanoparticles were only magnetite (Fe₃O₄) phase with face-centered cubic structure but post annealed iron oxide nanoparticles at 700 ℃ were mainly magnetite phase with trivial maghemite (γ -Fe₂O₃) phase which was induced in the post annealing treatment. The crystallinity of the iron oxide nanoparticles is enhanced by the post annealing treatment. The particle size of the as-synthesized iron oxide nanoparticles was about 5 nm and the particle shape was almost spherical. But the particle size of the post annealed iron oxide nanoparticles at 700 ℃ was around 25 ㎚ and the particle shape was spherical and irregular. The as-synthesized iron oxide nanoparticles showed superparamagnetic behavior, but post annealed iron oxide nanoparticles at 700 ℃ did not show superparamagnetic behavior due to the increase of particle size by post annealing treatment. The saturation of magnetization of the as-synthesized nanoparticles, post annealed nanoparticles at 500 ℃, and post annealed nanoparticles at 700 ℃ was found to be 3.7 emu/g, 6.1 emu/g, and 7.5 emu/g, respectively. The much smaller saturation magnetization value than one of bulk magnetite can be attributed to spin disorder and/or spin canting, spin pinning at the nanoparticle surface.
목차
1. Introduction
2. Experimental Details
3. Results and Discussion
4. Conclusions
References
참고문헌 (21)
참고문헌 신청
함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
Iron Oxide Nanoparticles Synthesized by Hydrothermal Process
한국자기학회 학술연구발표회 논문개요집
2007 .05
-
Influence of Synthetic Conditions on Iron Oxide Nanoparticles
한국자기학회 학술연구발표회 논문개요집
2007 .05
-
Linear-chain assemblies of iron oxide nanoparticles
한국자기학회 학술연구발표회 논문개요집
2016 .05
-
The Synthetic Method of Shape and Size Controllable Iron Oxide Nanoparticle
한국자기학회 학술연구발표회 논문개요집
2008 .12
-
Preparation of iron nanoparticles with Fe(Co)5 at low temperature
한국자기학회 학술연구발표회 논문개요집
2004 .12
-
Drug release though magnetic composite gels based on iron oxide nanoparticles
한국분석과학회 학술대회
2011 .05
-
Terahertz Dielectric Properties of Iron Oxide Nanoparticles
한국자기학회 학술연구발표회 논문개요집
2010 .12
-
Magnetic properties dependence on the iron oxide nanoparticles concentration in polymer nanocomposite
한국자기학회 학술연구발표회 논문개요집
2003 .12
-
Weak Ferromagnetism and Exchange Bias in Antiferromagnetic Cobalt Oxide Nanoparticles
Journal of Magnetics
2018 .12
-
Structure and magnetic properties of iron nanoparticles synthesized by chemical vapor condensation
한국자기학회 학술연구발표회 논문개요집
2003 .12
-
Large-scale Synthesis of Uniform-sized Nanoparticles for Multifunctional Medical Applications
한국진공학회 학술발표회초록집
2011 .02
-
The Effect of Surface Modifications on the Magnetic Properties of Ni0.5Zn0.5Fe₂O₄ Nanoparticles
한국자기학회 학술연구발표회 논문개요집
2008 .12
-
Mössbauer Studied of Superparamagnetic Ni0.5Zn0.5Fe₂O₄ Nanoparticles
한국자기학회 학술연구발표회 논문개요집
2008 .12
-
Ferromagnetic resonance effect in superparamagnetic iron oxide nanoparticles and its application for hyperthermia
한국자기학회 학술연구발표회 논문개요집
2019 .11
-
Heating Ability of Iron Oxide Nanoparticles at 120-900 ㎑ for Magnetic Anticancer Hyperthermia
한국자기학회 학술연구발표회 논문개요집
2007 .05
-
Characterization of NH2-introducing cleaved iron oxide nanoparticles for MRI applications
한국분석과학회 학술대회
2013 .11
-
나노입자 철 산화물의 제조와 자기적 특성 연구
한국자기학회 학술연구발표회 논문개요집
2004 .06
-
A Facile Route to Sonochemical Synthesis of Iron Oxide (Fe₃O₄) Nanoparticles
한국자기학회 학술연구발표회 논문개요집
2010 .12
-
An Environmentally-friendly Precursor, Ferrous Acetate, in preparation for Monodisperse Iron Oxide Nanoparticles
Journal of Magnetics
2008 .09
-
Crystallographic and Magnetic Properties of Iron Oxide Nanoparticles for Applications in Biomedicine
Journal of Magnetics
2004 .09
이 논문의 저자 정보
최근 본 자료
댓글(0)
0
UCI(KEPA) : I410-ECN-0101-2012-428-003805300