Mechanochemical synthesis of LaMnO3 from La2O3 and Mn2O3 powders

Qiwu Zhang; Fumio Saito

doi:10.1016/S0925-8388(99)00606-4

Mechanochemical synthesis of LaMnO₃ from La₂O₃ and Mn₂O₃ powders

Qiwu Zhang, Fumio Saito

Division of Process and System Engineering

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

99 Citations (Scopus)

Abstract

Perovskite-type lanthanum manganite (LaMnO₃) powder was synthesized by room temperature milling of La₂O₃ and Mn₂O₃ powders using a planetary ball mill. The synthesis reaction proceeds with increase in milling time and is finished by about 180 min. The reaction process was quantitatively evaluated by measuring the percentage of free (unreacted) La₂O₃ in the milled samples. The product powder (LaMnO₃) has large specific surface area of about 10 m²/g, which is comparable to the data obtained by the complex chemical synthesis methods. The mechanochemical process can also be applied to synthesis of manganese complex oxides with other rare earth elements such as Pr, Nd and Sm.

Original language	English
Pages (from-to)	99-103
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	297
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(99)00606-4
Publication status	Published - 2000 Feb 2

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/S0925-8388(99)00606-4

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title = "Mechanochemical synthesis of LaMnO3 from La2O3 and Mn2O3 powders",

abstract = "Perovskite-type lanthanum manganite (LaMnO3) powder was synthesized by room temperature milling of La2O3 and Mn2O3 powders using a planetary ball mill. The synthesis reaction proceeds with increase in milling time and is finished by about 180 min. The reaction process was quantitatively evaluated by measuring the percentage of free (unreacted) La2O3 in the milled samples. The product powder (LaMnO3) has large specific surface area of about 10 m2/g, which is comparable to the data obtained by the complex chemical synthesis methods. The mechanochemical process can also be applied to synthesis of manganese complex oxides with other rare earth elements such as Pr, Nd and Sm.",

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T1 - Mechanochemical synthesis of LaMnO3 from La2O3 and Mn2O3 powders

AU - Zhang, Qiwu

AU - Saito, Fumio

PY - 2000/2/2

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N2 - Perovskite-type lanthanum manganite (LaMnO3) powder was synthesized by room temperature milling of La2O3 and Mn2O3 powders using a planetary ball mill. The synthesis reaction proceeds with increase in milling time and is finished by about 180 min. The reaction process was quantitatively evaluated by measuring the percentage of free (unreacted) La2O3 in the milled samples. The product powder (LaMnO3) has large specific surface area of about 10 m2/g, which is comparable to the data obtained by the complex chemical synthesis methods. The mechanochemical process can also be applied to synthesis of manganese complex oxides with other rare earth elements such as Pr, Nd and Sm.

AB - Perovskite-type lanthanum manganite (LaMnO3) powder was synthesized by room temperature milling of La2O3 and Mn2O3 powders using a planetary ball mill. The synthesis reaction proceeds with increase in milling time and is finished by about 180 min. The reaction process was quantitatively evaluated by measuring the percentage of free (unreacted) La2O3 in the milled samples. The product powder (LaMnO3) has large specific surface area of about 10 m2/g, which is comparable to the data obtained by the complex chemical synthesis methods. The mechanochemical process can also be applied to synthesis of manganese complex oxides with other rare earth elements such as Pr, Nd and Sm.

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Mechanochemical synthesis of LaMnO₃ from La₂O₃ and Mn₂O₃ powders

Abstract

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