Synthesis of monodisperse Al-substituted hematite particles from highly condensed metal hydroxide gels

Qingyuan Liu; K. Osseo-Asare

doi:10.1006/jcis.2000.7142

Synthesis of monodisperse Al-substituted hematite particles from highly condensed metal hydroxide gels

Qingyuan Liu, K. Osseo-Asare

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

21 Scopus citations

Abstract

Monodispersed aluminum-substituted hematite particles were synthesized from concentrated mixed solutions of FeCl ₃ and AlCl ₃ using the gel-sol process. With increasing aluminum content (Al/(Fe + Al)) in the starting solutions, hematite particles became more and more elongated. The product particles exhibited ellipsoidal, rod- and peanut-like shapes, depending on Al concentration. Higher Al content (>20 mol%) in the system greatly suppressed the formation of hematite. Atomic emission spectrometry analysis and lattice parameter measurement confirmed the substitution of Al in hematite particles. (C) 2000 Academic Press.

Original language	English (US)
Pages (from-to)	401-403
Number of pages	3
Journal	Journal of Colloid And Interface Science
Volume	231
Issue number	2
DOIs	https://doi.org/10.1006/jcis.2000.7142
State	Published - Nov 15 2000

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Colloid and Surface Chemistry

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10.1006/jcis.2000.7142

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title = "Synthesis of monodisperse Al-substituted hematite particles from highly condensed metal hydroxide gels",

abstract = " Monodispersed aluminum-substituted hematite particles were synthesized from concentrated mixed solutions of FeCl 3 and AlCl 3 using the gel-sol process. With increasing aluminum content (Al/(Fe + Al)) in the starting solutions, hematite particles became more and more elongated. The product particles exhibited ellipsoidal, rod- and peanut-like shapes, depending on Al concentration. Higher Al content (>20 mol%) in the system greatly suppressed the formation of hematite. Atomic emission spectrometry analysis and lattice parameter measurement confirmed the substitution of Al in hematite particles. (C) 2000 Academic Press. ",

author = "Qingyuan Liu and K. Osseo-Asare",

note = "Funding Information: The authors thank the Particulate Materials Center at Penn State University for partial support of this research.",

year = "2000",

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doi = "10.1006/jcis.2000.7142",

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T1 - Synthesis of monodisperse Al-substituted hematite particles from highly condensed metal hydroxide gels

AU - Liu, Qingyuan

AU - Osseo-Asare, K.

N1 - Funding Information: The authors thank the Particulate Materials Center at Penn State University for partial support of this research.

PY - 2000/11/15

Y1 - 2000/11/15

N2 - Monodispersed aluminum-substituted hematite particles were synthesized from concentrated mixed solutions of FeCl 3 and AlCl 3 using the gel-sol process. With increasing aluminum content (Al/(Fe + Al)) in the starting solutions, hematite particles became more and more elongated. The product particles exhibited ellipsoidal, rod- and peanut-like shapes, depending on Al concentration. Higher Al content (>20 mol%) in the system greatly suppressed the formation of hematite. Atomic emission spectrometry analysis and lattice parameter measurement confirmed the substitution of Al in hematite particles. (C) 2000 Academic Press.

AB - Monodispersed aluminum-substituted hematite particles were synthesized from concentrated mixed solutions of FeCl 3 and AlCl 3 using the gel-sol process. With increasing aluminum content (Al/(Fe + Al)) in the starting solutions, hematite particles became more and more elongated. The product particles exhibited ellipsoidal, rod- and peanut-like shapes, depending on Al concentration. Higher Al content (>20 mol%) in the system greatly suppressed the formation of hematite. Atomic emission spectrometry analysis and lattice parameter measurement confirmed the substitution of Al in hematite particles. (C) 2000 Academic Press.

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JO - Journal of Colloid And Interface Science

JF - Journal of Colloid And Interface Science

IS - 2

ER -

Synthesis of monodisperse Al-substituted hematite particles from highly condensed metal hydroxide gels

Abstract

All Science Journal Classification (ASJC) codes

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