http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Siti Hajar Mohd Noor (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Polymer Matrix Templated Synthesis: Manganese Zinc Ferrite Nanoparticles Preparation
Siti Hajar Mohd Noor,Bee Chin Ang,Iskandar Idris Yaacob 한국정밀공학회 2013 International Journal of Precision Engineering and Vol. No.
Nanoparticles of MnxZn1-xFe2O4 where x = 0, 0.4, 0.5 and 0.6 were prepared by polymer matrix templated synthesis method. This technique utilized synthetic ion exchange resin as a host for precipitation of nanoparticles. Mn2+, Zn2+ and Fe3+ were adsorbed into the matrix of the resin from an aqueous solution mixture of respective chlorides. The resin beads were then recovered washed and dried. Follow by an excess amount of NaOH solution added to the resin that contained Mn2+, Zn2+ and Fe3+. The system was then heated to 85oC to transform the precipitated precursors into magnetic oxide. The morphology and shape of the particles were observed by transmission electron microscopy. The particles were almost spherical in shape and were about 6 - 9 nm in diameter. X-ray diffraction patterns showed broad peaks indicating that the crystallite sizes were in sub-micron dimension. The crystallite sizes for these particles increased with increasing Mn content. Magnetic property measurements were carried out using an alternating gradient magnetometer. The magnetization curves passed through the origin and showed no hysteresis indicating that the particles were superparamagnetic.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
