Hydrothermal synthesis of LnMnO3 (Ln = Ho-Lu and Y): Exploiting amphoterism in late rare-earth oxides

Evan S. Stampler, William C. Sheets, Wilfrid Prellier, Tobin J Marks, Kenneth R Poeppelmeier

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The reactivity of Mn2O3 and late rare-earth sesquioxides in alkaline aqueous solution affords a high-yield formation of rare-earth manganites, LnMnO3 (Ln = Ho-Lu and Y). The yield of the products depends significantly on the pH, which determines the solubility of the manganese cation, and reaction temperature, which regulates the decomposition of the insoluble rare-earth trihydroxide, Ln(OH)3, to the more reactive oxide hydroxide, LnO(OH). Plate- and needle-like LnMnO3 crystallites of a few micrometers in size have been prepared at reaction temperatures where the rare-earth oxide hydroxide is thermodynamically stable, whereas at lower temperatures the insoluble rare-earth trihydroxide persists and no reaction is observed.

Original languageEnglish
Pages (from-to)4375-4381
Number of pages7
JournalJournal of Materials Chemistry
Volume19
Issue number25
DOIs
Publication statusPublished - 2009

Fingerprint

Hydrothermal synthesis
Oxides
Rare earths
Manganites
Manganese
Crystallites
Needles
Temperature
Cations
Solubility
Positive ions
Decomposition
hydroxide ion

ASJC Scopus subject areas

  • Materials Chemistry
  • Chemistry(all)

Cite this

Hydrothermal synthesis of LnMnO3 (Ln = Ho-Lu and Y) : Exploiting amphoterism in late rare-earth oxides. / Stampler, Evan S.; Sheets, William C.; Prellier, Wilfrid; Marks, Tobin J; Poeppelmeier, Kenneth R.

In: Journal of Materials Chemistry, Vol. 19, No. 25, 2009, p. 4375-4381.

Research output: Contribution to journalArticle

@article{398a66254f034f4e99c86761129feb59,
title = "Hydrothermal synthesis of LnMnO3 (Ln = Ho-Lu and Y): Exploiting amphoterism in late rare-earth oxides",
abstract = "The reactivity of Mn2O3 and late rare-earth sesquioxides in alkaline aqueous solution affords a high-yield formation of rare-earth manganites, LnMnO3 (Ln = Ho-Lu and Y). The yield of the products depends significantly on the pH, which determines the solubility of the manganese cation, and reaction temperature, which regulates the decomposition of the insoluble rare-earth trihydroxide, Ln(OH)3, to the more reactive oxide hydroxide, LnO(OH). Plate- and needle-like LnMnO3 crystallites of a few micrometers in size have been prepared at reaction temperatures where the rare-earth oxide hydroxide is thermodynamically stable, whereas at lower temperatures the insoluble rare-earth trihydroxide persists and no reaction is observed.",
author = "Stampler, {Evan S.} and Sheets, {William C.} and Wilfrid Prellier and Marks, {Tobin J} and Poeppelmeier, {Kenneth R}",
year = "2009",
doi = "10.1039/b900370c",
language = "English",
volume = "19",
pages = "4375--4381",
journal = "Journal of Materials Chemistry",
issn = "0959-9428",
publisher = "Royal Society of Chemistry",
number = "25",

}

TY - JOUR

T1 - Hydrothermal synthesis of LnMnO3 (Ln = Ho-Lu and Y)

T2 - Exploiting amphoterism in late rare-earth oxides

AU - Stampler, Evan S.

AU - Sheets, William C.

AU - Prellier, Wilfrid

AU - Marks, Tobin J

AU - Poeppelmeier, Kenneth R

PY - 2009

Y1 - 2009

N2 - The reactivity of Mn2O3 and late rare-earth sesquioxides in alkaline aqueous solution affords a high-yield formation of rare-earth manganites, LnMnO3 (Ln = Ho-Lu and Y). The yield of the products depends significantly on the pH, which determines the solubility of the manganese cation, and reaction temperature, which regulates the decomposition of the insoluble rare-earth trihydroxide, Ln(OH)3, to the more reactive oxide hydroxide, LnO(OH). Plate- and needle-like LnMnO3 crystallites of a few micrometers in size have been prepared at reaction temperatures where the rare-earth oxide hydroxide is thermodynamically stable, whereas at lower temperatures the insoluble rare-earth trihydroxide persists and no reaction is observed.

AB - The reactivity of Mn2O3 and late rare-earth sesquioxides in alkaline aqueous solution affords a high-yield formation of rare-earth manganites, LnMnO3 (Ln = Ho-Lu and Y). The yield of the products depends significantly on the pH, which determines the solubility of the manganese cation, and reaction temperature, which regulates the decomposition of the insoluble rare-earth trihydroxide, Ln(OH)3, to the more reactive oxide hydroxide, LnO(OH). Plate- and needle-like LnMnO3 crystallites of a few micrometers in size have been prepared at reaction temperatures where the rare-earth oxide hydroxide is thermodynamically stable, whereas at lower temperatures the insoluble rare-earth trihydroxide persists and no reaction is observed.

UR - http://www.scopus.com/inward/record.url?scp=67649103753&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67649103753&partnerID=8YFLogxK

U2 - 10.1039/b900370c

DO - 10.1039/b900370c

M3 - Article

AN - SCOPUS:67649103753

VL - 19

SP - 4375

EP - 4381

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

SN - 0959-9428

IS - 25

ER -