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 language | English |
|---|---|
| Pages (from-to) | 4375-4381 |
| Number of pages | 7 |
| Journal | Journal of Materials Chemistry |
| Volume | 19 |
| Issue number | 25 |
| DOIs | |
| Publication status | Published - 2009 |
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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 journal › Article
}
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
VL - 19
SP - 4375
EP - 4381
JO - Journal of Materials Chemistry
JF - Journal of Materials Chemistry
SN - 0959-9428
IS - 25
ER -