Preparation and microstructure of spinel zinc ferrite ZnFe 2O4by Co-precipitation method

Ping Ren; Junxi Zhang; Huiyong Deng

doi:10.1007/s11595-009-6927-y

Preparation and microstructure of spinel zinc ferrite ZnFe ₂O₄by Co-precipitation method

Ping Ren, Junxi Zhang, Huiyong Deng

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

34 Scopus citations

Abstract

Spinel zinc ferrites ZnFe₂O₄, prepared by co-precipitation method using the zinc nitrate Zn(NO₃) ₂·6H₂O and ferric nitrate Fe(NO₃) ₃·2H₂O as the raw materials, were characterized by the thermo gravimetric analysis (TG) and differential scanning calorimeter (DSC), X-ray diffraction (XRD) and scanning electron microscope (SEM). The influence of synthesis conditions, such as Zn/Fe molar ratio, pH value, the sintering temperature and time, on the microstructures was detailedly investigated. The relationships between the microstructures and the synthesis conditions were discussed. The results show that the pure spinel zinc ferrites ZnFe₂O₄ are formed when the Zn/Fe molar ratio is 1.05: 2 at pH=8.5 or Zn/Fe molar ratio is 1 : 2 at Ph=9-10, and the precursors are sintered at 1100 °C for 4 h. Especially no other phases are observed when the Zn/Fe molar ratio is 1 : 2 at pH= 10 and the precursor is sintered above 700 °C for 4 h. The higher sintering temperature and longer sintering time contribute to grain growth.

Original language	English
Pages (from-to)	927-930
Number of pages	4
Journal	Journal Wuhan University of Technology, Materials Science Edition
Volume	24
Issue number	6
DOIs	https://doi.org/10.1007/s11595-009-6927-y
State	Published - Dec 2009
Externally published	Yes

Keywords

Co-precipitation
Microstructures
Zinc ferrites
ZnFeo

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10.1007/s11595-009-6927-y

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@article{7498ff3f6d3448b5a03e1f090af00757,

title = "Preparation and microstructure of spinel zinc ferrite ZnFe 2O4by Co-precipitation method",

abstract = "Spinel zinc ferrites ZnFe2O4, prepared by co-precipitation method using the zinc nitrate Zn(NO3) 2·6H2O and ferric nitrate Fe(NO3) 3·2H2O as the raw materials, were characterized by the thermo gravimetric analysis (TG) and differential scanning calorimeter (DSC), X-ray diffraction (XRD) and scanning electron microscope (SEM). The influence of synthesis conditions, such as Zn/Fe molar ratio, pH value, the sintering temperature and time, on the microstructures was detailedly investigated. The relationships between the microstructures and the synthesis conditions were discussed. The results show that the pure spinel zinc ferrites ZnFe2O4 are formed when the Zn/Fe molar ratio is 1.05: 2 at pH=8.5 or Zn/Fe molar ratio is 1 : 2 at Ph=9-10, and the precursors are sintered at 1100 °C for 4 h. Especially no other phases are observed when the Zn/Fe molar ratio is 1 : 2 at pH= 10 and the precursor is sintered above 700 °C for 4 h. The higher sintering temperature and longer sintering time contribute to grain growth.",

keywords = "Co-precipitation, Microstructures, Zinc ferrites, ZnFeo",

author = "Ping Ren and Junxi Zhang and Huiyong Deng",

year = "2009",

month = dec,

doi = "10.1007/s11595-009-6927-y",

language = "英语",

volume = "24",

pages = "927--930",

journal = "Journal Wuhan University of Technology, Materials Science Edition",

issn = "1000-2413",

publisher = "Springer Verlag",

number = "6",

}

TY - JOUR

T1 - Preparation and microstructure of spinel zinc ferrite ZnFe 2O4by Co-precipitation method

AU - Ren, Ping

AU - Zhang, Junxi

AU - Deng, Huiyong

PY - 2009/12

Y1 - 2009/12

N2 - Spinel zinc ferrites ZnFe2O4, prepared by co-precipitation method using the zinc nitrate Zn(NO3) 2·6H2O and ferric nitrate Fe(NO3) 3·2H2O as the raw materials, were characterized by the thermo gravimetric analysis (TG) and differential scanning calorimeter (DSC), X-ray diffraction (XRD) and scanning electron microscope (SEM). The influence of synthesis conditions, such as Zn/Fe molar ratio, pH value, the sintering temperature and time, on the microstructures was detailedly investigated. The relationships between the microstructures and the synthesis conditions were discussed. The results show that the pure spinel zinc ferrites ZnFe2O4 are formed when the Zn/Fe molar ratio is 1.05: 2 at pH=8.5 or Zn/Fe molar ratio is 1 : 2 at Ph=9-10, and the precursors are sintered at 1100 °C for 4 h. Especially no other phases are observed when the Zn/Fe molar ratio is 1 : 2 at pH= 10 and the precursor is sintered above 700 °C for 4 h. The higher sintering temperature and longer sintering time contribute to grain growth.

AB - Spinel zinc ferrites ZnFe2O4, prepared by co-precipitation method using the zinc nitrate Zn(NO3) 2·6H2O and ferric nitrate Fe(NO3) 3·2H2O as the raw materials, were characterized by the thermo gravimetric analysis (TG) and differential scanning calorimeter (DSC), X-ray diffraction (XRD) and scanning electron microscope (SEM). The influence of synthesis conditions, such as Zn/Fe molar ratio, pH value, the sintering temperature and time, on the microstructures was detailedly investigated. The relationships between the microstructures and the synthesis conditions were discussed. The results show that the pure spinel zinc ferrites ZnFe2O4 are formed when the Zn/Fe molar ratio is 1.05: 2 at pH=8.5 or Zn/Fe molar ratio is 1 : 2 at Ph=9-10, and the precursors are sintered at 1100 °C for 4 h. Especially no other phases are observed when the Zn/Fe molar ratio is 1 : 2 at pH= 10 and the precursor is sintered above 700 °C for 4 h. The higher sintering temperature and longer sintering time contribute to grain growth.

KW - Co-precipitation

KW - Microstructures

KW - Zinc ferrites

KW - ZnFeo

UR - https://www.scopus.com/pages/publications/77953864337

U2 - 10.1007/s11595-009-6927-y

DO - 10.1007/s11595-009-6927-y

M3 - 文章

AN - SCOPUS:77953864337

SN - 1000-2413

VL - 24

SP - 927

EP - 930

JO - Journal Wuhan University of Technology, Materials Science Edition

JF - Journal Wuhan University of Technology, Materials Science Edition

IS - 6

ER -

Preparation and microstructure of spinel zinc ferrite ZnFe ₂O₄by Co-precipitation method

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Keywords

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