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Glycothermal Reaction of Rare‐Earth Acetate and Iron Acetylacetonate: Formation of Hexagonal ReFeO3

Identifieur interne : 002C23 ( Main/Merge ); précédent : 002C22; suivant : 002C24

Glycothermal Reaction of Rare‐Earth Acetate and Iron Acetylacetonate: Formation of Hexagonal ReFeO3

Auteurs : Masashi Inoue [Japon] ; Toshihiro Nishikawa [Japon] ; Tomohiro Nakamura [Japon] ; Tomoyuki Inui [Japon]

Source :

Journal of the American Ceramic Society [ 0002-7820 ] ; 1997-08.

RBID : ISTEX:BAE9B60D31E664C1921EDFFC115F4F3536672E41

Descripteurs français

Wicri :
- topic : Oxyde.

English descriptors

Abstract

The reaction of a mixture of iron acetylacetonate and rare‐earth (Tm‐Lu) acetate in 1,4‐butanediol at 300°C yielded a novel phase of ReFeO3 having a hexagonal crystal system (a0 = 6.06, c0= 11.74 A) together with small amounts of Fe3O4and/or the garnet phase. The particle size of the product distributed in a narrow range and selected area electron diffraction from a particle having apparent polycrystalline outlines suggested that each particle was actually a single crystal grown from one nucleus. On calcination, the hexagonal phase irreversibly transformed into the perovskite phase at around 980°C. The use of ethylene glycol in place of 1,4‐butanediol of the present procedure afforded Fe3O4, while hydrothermal reaction of the same starting materials yielded a mixture of Fe2O3and an amorphous rare‐earth phase.

Url:

https://api.istex.fr/document/BAE9B60D31E664C1921EDFFC115F4F3536672E41/fulltext/pdf

DOI: 10.1111/j.1151-2916.1997.tb03103.x

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ISTEX:BAE9B60D31E664C1921EDFFC115F4F3536672E41

Le document en format XML

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<author><name sortKey="Inoue, Masashi" sort="Inoue, Masashi" uniqKey="Inoue M" first="Masashi" last="Inoue">Masashi Inoue</name>
</author>
<author><name sortKey="Nishikawa, Toshihiro" sort="Nishikawa, Toshihiro" uniqKey="Nishikawa T" first="Toshihiro" last="Nishikawa">Toshihiro Nishikawa</name>
</author>
<author><name sortKey="Nakamura, Tomohiro" sort="Nakamura, Tomohiro" uniqKey="Nakamura T" first="Tomohiro" last="Nakamura">Tomohiro Nakamura</name>
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<author><name sortKey="Inui, Tomoyuki" sort="Inui, Tomoyuki" uniqKey="Inui T" first="Tomoyuki" last="Inui">Tomoyuki Inui</name>
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<wicri:regionArea>Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Kyoto 606–01</wicri:regionArea>
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<author><name sortKey="Inui, Tomoyuki" sort="Inui, Tomoyuki" uniqKey="Inui T" first="Tomoyuki" last="Inui">Tomoyuki Inui</name>
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<series><title level="j" type="main">Journal of the American Ceramic Society</title>
<title level="j" type="alt">JOURNAL OF AMERICAN CERAMIC SOCIETY</title>
<idno type="ISSN">0002-7820</idno>
<idno type="eISSN">1551-2916</idno>
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<publisher>American Ceramics Society</publisher>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acetylacetonate</term>
<term>Acta crystallogr</term>
<term>Alumina</term>
<term>Amorphous erbium species</term>
<term>Autogenous pressure</term>
<term>Binary oxides</term>
<term>Broad hump</term>
<term>Ceram</term>
<term>Crystal growth</term>
<term>Diffraction peaks</term>
<term>Erbium</term>
<term>Erbium acetate</term>
<term>Ethylene glycol</term>
<term>Exothermic peak</term>
<term>Former compound</term>
<term>Garnet</term>
<term>Glycol</term>
<term>Glycol moiety</term>
<term>Glycothermal</term>
<term>Glycothermal conditions</term>
<term>Glycothermal method</term>
<term>Glycothermal reaction</term>
<term>Glycothermal synthesis</term>
<term>Glycothermal treatment</term>
<term>Hexagonal</term>
<term>Hexagonal crystal system</term>
<term>Hexagonal phase</term>
<term>Hydrothermal method</term>
<term>Hydrothermal reaction</term>
<term>Inoue</term>
<term>Inui</term>
<term>Iron acetylacetonate</term>
<term>Kominami</term>
<term>Organic media</term>
<term>Oxide</term>
<term>Perovskite</term>
<term>Perovskite phase</term>
<term>Perovskite structure</term>
<term>Polycrystalline outlines</term>
<term>Present authors</term>
<term>Present product</term>
<term>Single crystal</term>
<term>Small amount</term>
<term>Space group</term>
<term>Test tube</term>
<term>Thermal decomposition</term>
<term>Weight decrease</term>
<term>Yttrium</term>
<term>Yttrium aluminum garnet</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Acetylacetonate</term>
<term>Acta crystallogr</term>
<term>Alumina</term>
<term>Amorphous erbium species</term>
<term>Autogenous pressure</term>
<term>Binary oxides</term>
<term>Broad hump</term>
<term>Ceram</term>
<term>Crystal growth</term>
<term>Diffraction peaks</term>
<term>Erbium</term>
<term>Erbium acetate</term>
<term>Ethylene glycol</term>
<term>Exothermic peak</term>
<term>Former compound</term>
<term>Garnet</term>
<term>Glycol</term>
<term>Glycol moiety</term>
<term>Glycothermal</term>
<term>Glycothermal conditions</term>
<term>Glycothermal method</term>
<term>Glycothermal reaction</term>
<term>Glycothermal synthesis</term>
<term>Glycothermal treatment</term>
<term>Hexagonal</term>
<term>Hexagonal crystal system</term>
<term>Hexagonal phase</term>
<term>Hydrothermal method</term>
<term>Hydrothermal reaction</term>
<term>Inoue</term>
<term>Inui</term>
<term>Iron acetylacetonate</term>
<term>Kominami</term>
<term>Organic media</term>
<term>Oxide</term>
<term>Perovskite</term>
<term>Perovskite phase</term>
<term>Perovskite structure</term>
<term>Polycrystalline outlines</term>
<term>Present authors</term>
<term>Present product</term>
<term>Single crystal</term>
<term>Small amount</term>
<term>Space group</term>
<term>Test tube</term>
<term>Thermal decomposition</term>
<term>Weight decrease</term>
<term>Yttrium</term>
<term>Yttrium aluminum garnet</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Oxyde</term>
</keywords>
</textClass>
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<front><div type="abstract" xml:lang="en">The reaction of a mixture of iron acetylacetonate and rare‐earth (Tm‐Lu) acetate in 1,4‐butanediol at 300°C yielded a novel phase of ReFeO3 having a hexagonal crystal system (a0 = 6.06, c0= 11.74 A) together with small amounts of Fe3O4and/or the garnet phase. The particle size of the product distributed in a narrow range and selected area electron diffraction from a particle having apparent polycrystalline outlines suggested that each particle was actually a single crystal grown from one nucleus. On calcination, the hexagonal phase irreversibly transformed into the perovskite phase at around 980°C. The use of ethylene glycol in place of 1,4‐butanediol of the present procedure afforded Fe3O4, while hydrothermal reaction of the same starting materials yielded a mixture of Fe2O3and an amorphous rare‐earth phase.</div>
</front>
</TEI>
</record>

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Glycothermal Reaction of Rare‐Earth Acetate and Iron Acetylacetonate: Formation of Hexagonal ReFeO3

Glycothermal Reaction of Rare‐Earth Acetate and Iron Acetylacetonate: Formation of Hexagonal ReFeO3

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri