One-pot synthesis of PVP-coated Ni0.6Fe2.4O4 nanocrystals

被引：4

作者：

Lu XianYong ^{[1
,2
]}

Niu Mu ^{[1
]}

Yang ChunHui ^{[1
]}

Yi LuoXin ^{[1
]}

Qiao RuiRui ^{[1
]}

Du MeiHong ^{[3
]}

Gao MingYuan ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China

[2] Beijing Univ Aeronaut & Astronaut, Sch Chem & Environm, Beijing 100191, Peoples R China

[3] Beijing Ctr Phys & Chem Anal, Beijing 100089, Peoples R China

来源：

CHINESE SCIENCE BULLETIN | 2010年 / 55卷 / 30期

基金：

中国国家自然科学基金;

关键词：

magnetic nanocrystals; thermal decomposition; N-vinyl-2-pyrrolidone; colloidal stability; MAGNETITE NANOCRYSTALS; NICKEL FERRITE; MFE2O4; M; NANOPARTICLES; NIFE2O4; COBALT; METAL; CO;

D O I：

10.1007/s11434-010-4054-y

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Novel poly(N-vinyl-2-pyrrolidone) (PVP)-coated nickel ferrite nanocrystals were prepared by simultaneously pyrolyzing nickel(II) acetylacetonate (Ni(acac)(2)) and iron(III) acetylacetonate (Fe(acac)(3)) in N-vinyl-2-pyrrolidone (NVP). The PVP coating was formed in situ through polymerization of NVP. The crystalline structure of the resultant nickel ferrite was analyzed by high-resolution transmission electron microscopy, electron diffraction patterns, and powder X-ray diffraction. In addition, the valence state of Ni and the metal contents of Ni and Fe in different valence states were analyzed by X-ray photoelectron spectroscopy (XPS), atomic absorption and the phenanthroline method. The surface coating layer of PVP and its binding states were characterized by Fourier transform infrared spectroscopy in combination with XPS. Colloidal stability experiments revealed that the nanocrystals could be dispersed well in both phosphate-buffered saline and Dulbecco's Modified Eagle Medium.

引用

页码：3472 / 3478

页数：7

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