The effect of surface modification on the morphology and magnetic properties of NiFe2O4 nanoparticles

Hongxia Wang; Faling Zhang; Wei Zhang; Xianjie Wang; Zhe Lu; Zhengnan Qian; Yu Sui; Dawei Dong; Wenhui Su

doi:10.1016/j.jcrysgro.2006.05.002

The effect of surface modification on the morphology and magnetic properties of NiFe₂O₄ nanoparticles

Hongxia Wang
, Faling Zhang
, Wei Zhang
, Xianjie Wang
, Zhe Lu
, Zhengnan Qian
, Yu Sui
, Dawei Dong
, Wenhui Su^*

^*Corresponding author for this work

School of Physics

Harbin Institute of Technology
CAS - International Center for Material Physics

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Three NiFe₂O₄/SiO₂ nanocomposites have been obtained by dropping different silica source into ferrite sol in this study. X-ray fluorescence spectroscopy and X-ray diffractometer are, respectively, used to detect the content of nickel ferrite and crystalline phase in the formed nanocomposites. Transmission electron microscopy characterization shows a more-ordered array of NiFe₂O₄ nanoparticles in silica matrix after the particles are modified by a coupling agent, APS, before TEOS and sodium silicate. Magnetic measurements indicate that the lower dipole-dipole interactions between NiFe₂O₄ nanoparticles have been obtained after surface modification.

Original language	English
Pages (from-to)	169-174
Number of pages	6
Journal	Journal of Crystal Growth
Volume	293
Issue number	1
DOIs	https://doi.org/10.1016/j.jcrysgro.2006.05.002
State	Published - 15 Jul 2006

Keywords

A1. Sol-gel process
A1. Surface modification
B1. NiFeO nanoparticles
B2. dipole-dipole interactions

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10.1016/j.jcrysgro.2006.05.002

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title = "The effect of surface modification on the morphology and magnetic properties of NiFe2O4 nanoparticles",

abstract = "Three NiFe2O4/SiO2 nanocomposites have been obtained by dropping different silica source into ferrite sol in this study. X-ray fluorescence spectroscopy and X-ray diffractometer are, respectively, used to detect the content of nickel ferrite and crystalline phase in the formed nanocomposites. Transmission electron microscopy characterization shows a more-ordered array of NiFe2O4 nanoparticles in silica matrix after the particles are modified by a coupling agent, APS, before TEOS and sodium silicate. Magnetic measurements indicate that the lower dipole-dipole interactions between NiFe2O4 nanoparticles have been obtained after surface modification.",

keywords = "A1. Sol-gel process, A1. Surface modification, B1. NiFeO nanoparticles, B2. dipole-dipole interactions",

author = "Hongxia Wang and Faling Zhang and Wei Zhang and Xianjie Wang and Zhe Lu and Zhengnan Qian and Yu Sui and Dawei Dong and Wenhui Su",

year = "2006",

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doi = "10.1016/j.jcrysgro.2006.05.002",

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TY - JOUR

T1 - The effect of surface modification on the morphology and magnetic properties of NiFe2O4 nanoparticles

AU - Wang, Hongxia

AU - Zhang, Faling

AU - Zhang, Wei

AU - Wang, Xianjie

AU - Lu, Zhe

AU - Qian, Zhengnan

AU - Sui, Yu

AU - Dong, Dawei

AU - Su, Wenhui

PY - 2006/7/15

Y1 - 2006/7/15

N2 - Three NiFe2O4/SiO2 nanocomposites have been obtained by dropping different silica source into ferrite sol in this study. X-ray fluorescence spectroscopy and X-ray diffractometer are, respectively, used to detect the content of nickel ferrite and crystalline phase in the formed nanocomposites. Transmission electron microscopy characterization shows a more-ordered array of NiFe2O4 nanoparticles in silica matrix after the particles are modified by a coupling agent, APS, before TEOS and sodium silicate. Magnetic measurements indicate that the lower dipole-dipole interactions between NiFe2O4 nanoparticles have been obtained after surface modification.

AB - Three NiFe2O4/SiO2 nanocomposites have been obtained by dropping different silica source into ferrite sol in this study. X-ray fluorescence spectroscopy and X-ray diffractometer are, respectively, used to detect the content of nickel ferrite and crystalline phase in the formed nanocomposites. Transmission electron microscopy characterization shows a more-ordered array of NiFe2O4 nanoparticles in silica matrix after the particles are modified by a coupling agent, APS, before TEOS and sodium silicate. Magnetic measurements indicate that the lower dipole-dipole interactions between NiFe2O4 nanoparticles have been obtained after surface modification.

KW - A1. Sol-gel process

KW - A1. Surface modification

KW - B1. NiFeO nanoparticles

KW - B2. dipole-dipole interactions

UR - https://www.scopus.com/pages/publications/33745946435

U2 - 10.1016/j.jcrysgro.2006.05.002

DO - 10.1016/j.jcrysgro.2006.05.002

M3 - 文章

AN - SCOPUS:33745946435

SN - 0022-0248

VL - 293

SP - 169

EP - 174

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

IS - 1

ER -

The effect of surface modification on the morphology and magnetic properties of NiFe₂O₄ nanoparticles

Abstract

Keywords

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