Synthesis of rare earth monoxides
Identifieur interne : 002320 ( Istex/Corpus ); précédent : 002319; suivant : 002321Synthesis of rare earth monoxides
Auteurs : J. M. Leger ; N. Yacoubi ; J. LoriersSource :
- Journal of Solid State Chemistry [ 0022-4596 ] ; 1981.
English descriptors
- KwdEn :
- Academic press, Anionic radius, Atomic number, Bulk modulus, Cell parameter, Cell parameters, Chem, Dissociation energy, Divalent, Divalent state, Earth monoxide, Earth monoxides, Earth oxides, Europium, Experimental results, Gibbs energy change, High pressure, High pressures, Impurity contents, Intermediate valence state, Ionic monoxide, Ionic monoxides, Kbar, Lanthanide contraction, Large variety, Lattice parameters, Leger, Loriers, Metallic monoxide, Metallic monoxides, Metallic phase, Metallic properties, Metastable state, Monoxide, Nominal purity, Nonmetallic impurities, Normal conditions, Normal pressure, Ordinary pressure, Other conditions, Positive value, Pure metal, Rare earth, Rare earth metals, Rare earth monochalcogenides, Rare earth monoxides, Rare earth series, Rare earths, Samarium, Samarium monoxide, Samarium sites, Sesquioxide, Standard gibbs, Standard gibbs energy change, Standard gibbs energy changes, Status solidi, Thermodynamic, Thermodynamic cycle, Thermodynamic stability, Third ionization, Trivalent, Trivalent state, Valence, Volume difference, Yacoubi, Ytterbium, Ytterbium monoxide.
- Teeft :
- Academic press, Anionic radius, Atomic number, Bulk modulus, Cell parameter, Cell parameters, Chem, Dissociation energy, Divalent, Divalent state, Earth monoxide, Earth monoxides, Earth oxides, Europium, Experimental results, Gibbs energy change, High pressure, High pressures, Impurity contents, Intermediate valence state, Ionic monoxide, Ionic monoxides, Kbar, Lanthanide contraction, Large variety, Lattice parameters, Leger, Loriers, Metallic monoxide, Metallic monoxides, Metallic phase, Metallic properties, Metastable state, Monoxide, Nominal purity, Nonmetallic impurities, Normal conditions, Normal pressure, Ordinary pressure, Other conditions, Positive value, Pure metal, Rare earth, Rare earth metals, Rare earth monochalcogenides, Rare earth monoxides, Rare earth series, Rare earths, Samarium, Samarium monoxide, Samarium sites, Sesquioxide, Standard gibbs, Standard gibbs energy change, Standard gibbs energy changes, Status solidi, Thermodynamic, Thermodynamic cycle, Thermodynamic stability, Third ionization, Trivalent, Trivalent state, Valence, Volume difference, Yacoubi, Ytterbium, Ytterbium monoxide.
Abstract
Abstract: The standard Gibbs energy changes for the formation of an ionic or metallic monoxide from rare earth metal and sesquioxide have been calculated. Under high pressures ionic ytterbium monoxide and lighter rare earth metallic monoxides should be obtained, which is confirmed by experiments in a belt-type apparatus in the range 15–80 kbar and 500-1200°C. For Ln =La, Ce, Pr, Nd, Sm, a face-centered cubic compound is obtained from each reaction. The cell parameters are respectively 5.144, 5.089, 5.031, 4.994, and 4.943 ± 0.005A˚. The compounds appear golden yellow with a metallic luster. From chemical analyses and cell parameter consideration it is concluded that these compounds are the rare earth monoxides. For Ln =Gd, Dy, Tm, no reaction is observed at 50 kbar and 1000°C. The rare earth monoxides show a variety of properties: LaO, CeO, PrO, and NdO are metallic with the rare earth in the trivalent state; EuO and YbO are semiconductors with the rare earth in the divalent state; SmO is metallic with samarium in an intermediate valence state close to 3.
Url:
DOI: 10.1016/0022-4596(81)90436-9
Links to Exploration step
ISTEX:9DC7DF5A940A9A31DB5E3F9C434F871C0BD9A26ALe document en format XML
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Briand, 92190 Meudon, France</mods:affiliation></affiliation></author><author><name sortKey="Yacoubi, N" sort="Yacoubi, N" uniqKey="Yacoubi N" first="N." last="Yacoubi">N. Yacoubi</name><affiliation><mods:affiliation>E.R. 211, CNRS, 1 place A. Briand, 92190 Meudon, France</mods:affiliation></affiliation></author><author><name sortKey="Loriers, J" sort="Loriers, J" uniqKey="Loriers J" first="J." last="Loriers">J. Loriers</name><affiliation><mods:affiliation>E.R. 211, CNRS, 1 place A. 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Under high pressures ionic ytterbium monoxide and lighter rare earth metallic monoxides should be obtained, which is confirmed by experiments in a belt-type apparatus in the range 15–80 kbar and 500-1200°C. For Ln =La, Ce, Pr, Nd, Sm, a face-centered cubic compound is obtained from each reaction. The cell parameters are respectively 5.144, 5.089, 5.031, 4.994, and 4.943 ± 0.005A˚. The compounds appear golden yellow with a metallic luster. From chemical analyses and cell parameter consideration it is concluded that these compounds are the rare earth monoxides. For Ln =Gd, Dy, Tm, no reaction is observed at 50 kbar and 1000°C. The rare earth monoxides show a variety of properties: LaO, CeO, PrO, and NdO are metallic with the rare earth in the trivalent state; EuO and YbO are semiconductors with the rare earth in the divalent state; SmO is metallic with samarium in an intermediate valence state close to 3.</div></front></TEI><istex><corpusName>elsevier</corpusName><keywords><teeft><json:string>monoxide</json:string><json:string>kbar</json:string><json:string>samarium</json:string><json:string>trivalent</json:string><json:string>ytterbium</json:string><json:string>europium</json:string><json:string>divalent</json:string><json:string>rare earth</json:string><json:string>sesquioxide</json:string><json:string>valence</json:string><json:string>chem</json:string><json:string>loriers</json:string><json:string>yacoubi</json:string><json:string>high pressure</json:string><json:string>earth monoxides</json:string><json:string>volume difference</json:string><json:string>rare earths</json:string><json:string>normal pressure</json:string><json:string>rare earth monoxides</json:string><json:string>standard gibbs energy changes</json:string><json:string>metallic monoxides</json:string><json:string>cell parameters</json:string><json:string>thermodynamic cycle</json:string><json:string>metallic monoxide</json:string><json:string>samarium monoxide</json:string><json:string>trivalent state</json:string><json:string>earth monoxide</json:string><json:string>normal conditions</json:string><json:string>rare earth series</json:string><json:string>standard gibbs energy change</json:string><json:string>high pressures</json:string><json:string>pure metal</json:string><json:string>cell parameter</json:string><json:string>gibbs energy change</json:string><json:string>ionic monoxides</json:string><json:string>divalent state</json:string><json:string>lattice parameters</json:string><json:string>leger</json:string><json:string>thermodynamic</json:string><json:string>third ionization</json:string><json:string>positive value</json:string><json:string>rare earth metals</json:string><json:string>large variety</json:string><json:string>intermediate valence state</json:string><json:string>metastable state</json:string><json:string>bulk modulus</json:string><json:string>standard gibbs</json:string><json:string>academic press</json:string><json:string>anionic radius</json:string><json:string>other conditions</json:string><json:string>earth oxides</json:string><json:string>nominal purity</json:string><json:string>nonmetallic impurities</json:string><json:string>thermodynamic stability</json:string><json:string>impurity contents</json:string><json:string>experimental results</json:string><json:string>metallic properties</json:string><json:string>rare earth monochalcogenides</json:string><json:string>lanthanide contraction</json:string><json:string>ordinary pressure</json:string><json:string>ionic monoxide</json:string><json:string>samarium sites</json:string><json:string>dissociation energy</json:string><json:string>metallic phase</json:string><json:string>atomic number</json:string><json:string>ytterbium monoxide</json:string><json:string>status solidi</json:string></teeft></keywords><author><json:item><name>J.M. Leger</name><affiliations><json:string>E.R. 211, CNRS, 1 place A. Briand, 92190 Meudon, France</json:string></affiliations></json:item><json:item><name>N. Yacoubi</name><affiliations><json:string>E.R. 211, CNRS, 1 place A. Briand, 92190 Meudon, France</json:string></affiliations></json:item><json:item><name>J. Loriers</name><affiliations><json:string>E.R. 211, CNRS, 1 place A. Briand, 92190 Meudon, France</json:string></affiliations></json:item></author><articleId><json:string>81904369</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>Full-length article</json:string></originalGenre><abstract>Abstract: The standard Gibbs energy changes for the formation of an ionic or metallic monoxide from rare earth metal and sesquioxide have been calculated. Under high pressures ionic ytterbium monoxide and lighter rare earth metallic monoxides should be obtained, which is confirmed by experiments in a belt-type apparatus in the range 15–80 kbar and 500-1200°C. For Ln =La, Ce, Pr, Nd, Sm, a face-centered cubic compound is obtained from each reaction. The cell parameters are respectively 5.144, 5.089, 5.031, 4.994, and 4.943 ± 0.005A˚. The compounds appear golden yellow with a metallic luster. From chemical analyses and cell parameter consideration it is concluded that these compounds are the rare earth monoxides. For Ln =Gd, Dy, Tm, no reaction is observed at 50 kbar and 1000°C. The rare earth monoxides show a variety of properties: LaO, CeO, PrO, and NdO are metallic with the rare earth in the trivalent state; EuO and YbO are semiconductors with the rare earth in the divalent state; SmO is metallic with samarium in an intermediate valence state close to 3.</abstract><qualityIndicators><score>6.694</score><pdfVersion>1.3</pdfVersion><pdfPageSize>504 x 720 pts</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>0</keywordCount><abstractCharCount>1071</abstractCharCount><pdfWordCount>4594</pdfWordCount><pdfCharCount>26209</pdfCharCount><pdfPageCount>10</pdfPageCount><abstractWordCount>175</abstractWordCount></qualityIndicators><title>Synthesis of rare earth monoxides</title><pii><json:string>0022-4596(81)90436-9</json:string></pii><genre><json:string>research-article</json:string></genre><host><title>Journal of Solid State Chemistry</title><language><json:string>unknown</json:string></language><publicationDate>1981</publicationDate><issn><json:string>0022-4596</json:string></issn><pii><json:string>S0022-4596(81)X8002-8</json:string></pii><volume>36</volume><issue>3</issue><pages><first>261</first><last>270</last></pages><genre><json:string>journal</json:string></genre></host><categories><wos><json:string>science</json:string><json:string>chemistry, physical</json:string><json:string>chemistry, inorganic & nuclear</json:string></wos><scienceMetrix><json:string>natural sciences</json:string><json:string>chemistry</json:string><json:string>inorganic & nuclear chemistry</json:string></scienceMetrix><inist><json:string>sciences appliquees, technologies et medecines</json:string><json:string>sciences biologiques et medicales</json:string><json:string>sciences biologiques fondamentales et appliquees. psychologie</json:string><json:string>immunologie fondamentale</json:string></inist></categories><publicationDate>1981</publicationDate><copyrightDate>1981</copyrightDate><doi><json:string>10.1016/0022-4596(81)90436-9</json:string></doi><id>9DC7DF5A940A9A31DB5E3F9C434F871C0BD9A26A</id><score>1</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/9DC7DF5A940A9A31DB5E3F9C434F871C0BD9A26A/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/9DC7DF5A940A9A31DB5E3F9C434F871C0BD9A26A/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/9DC7DF5A940A9A31DB5E3F9C434F871C0BD9A26A/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">Synthesis of rare earth monoxides</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>ELSEVIER</publisher><availability><p>©1981 Academic Press, Inc.</p></availability><date>1981</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Synthesis of rare earth monoxides</title><author xml:id="author-0000"><persName><forename type="first">J.M.</forename><surname>Leger</surname></persName><affiliation>E.R. 211, CNRS, 1 place A. Briand, 92190 Meudon, France</affiliation></author><author xml:id="author-0001"><persName><forename type="first">N.</forename><surname>Yacoubi</surname></persName><affiliation>E.R. 211, CNRS, 1 place A. Briand, 92190 Meudon, France</affiliation></author><author xml:id="author-0002"><persName><forename type="first">J.</forename><surname>Loriers</surname></persName><affiliation>E.R. 211, CNRS, 1 place A. Briand, 92190 Meudon, France</affiliation></author><idno type="istex">9DC7DF5A940A9A31DB5E3F9C434F871C0BD9A26A</idno><idno type="DOI">10.1016/0022-4596(81)90436-9</idno><idno type="PII">0022-4596(81)90436-9</idno><idno type="ArticleID">81904369</idno></analytic><monogr><title level="j">Journal of Solid State Chemistry</title><title level="j" type="abbrev">YJSSC</title><idno type="pISSN">0022-4596</idno><idno type="PII">S0022-4596(81)X8002-8</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1981"></date><biblScope unit="volume">36</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="261">261</biblScope><biblScope unit="page" to="270">270</biblScope></imprint></monogr></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1981</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Abstract: The standard Gibbs energy changes for the formation of an ionic or metallic monoxide from rare earth metal and sesquioxide have been calculated. Under high pressures ionic ytterbium monoxide and lighter rare earth metallic monoxides should be obtained, which is confirmed by experiments in a belt-type apparatus in the range 15–80 kbar and 500-1200°C. For Ln =La, Ce, Pr, Nd, Sm, a face-centered cubic compound is obtained from each reaction. The cell parameters are respectively 5.144, 5.089, 5.031, 4.994, and 4.943 ± 0.005A˚. The compounds appear golden yellow with a metallic luster. From chemical analyses and cell parameter consideration it is concluded that these compounds are the rare earth monoxides. For Ln =Gd, Dy, Tm, no reaction is observed at 50 kbar and 1000°C. The rare earth monoxides show a variety of properties: LaO, CeO, PrO, and NdO are metallic with the rare earth in the trivalent state; EuO and YbO are semiconductors with the rare earth in the divalent state; SmO is metallic with samarium in an intermediate valence state close to 3.</p></abstract></profileDesc><revisionDesc><change when="1980-05-28">Modified</change><change when="1981">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/9DC7DF5A940A9A31DB5E3F9C434F871C0BD9A26A/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier doc found" wicri:toSee="Elsevier, no converted or simple article"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 5.0.1//EN//XML" URI="art501.dtd" name="istex:docType"></istex:docType><istex:document><article version="5.0" xml:lang="en" docsubtype="fla"><item-info><jid>YJSSC</jid><aid>81904369</aid><ce:pii>0022-4596(81)90436-9</ce:pii><ce:doi>10.1016/0022-4596(81)90436-9</ce:doi><ce:copyright type="unknown" year="1981">Academic Press, Inc.</ce:copyright></item-info><head><ce:title>Synthesis of rare earth monoxides</ce:title><ce:author-group><ce:author><ce:given-name>J.M.</ce:given-name><ce:surname>Leger</ce:surname></ce:author><ce:author><ce:given-name>N.</ce:given-name><ce:surname>Yacoubi</ce:surname></ce:author><ce:author><ce:given-name>J.</ce:given-name><ce:surname>Loriers</ce:surname></ce:author><ce:affiliation><ce:textfn>E.R. 211, CNRS, 1 place A. Briand, 92190 Meudon, France</ce:textfn></ce:affiliation></ce:author-group><ce:date-received day="14" month="11" year="1979"></ce:date-received><ce:date-revised day="28" month="5" year="1980"></ce:date-revised><ce:abstract id="ab1" class="author" xml:lang="en"><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>The standard Gibbs energy changes for the formation of an ionic or metallic monoxide from rare earth metal and sesquioxide have been calculated. Under high pressures ionic ytterbium monoxide and lighter rare earth metallic monoxides should be obtained, which is confirmed by experiments in a belt-type apparatus in the range 15–80 kbar and 500-1200°C. For <ce:italic>Ln</ce:italic> =La, Ce, Pr, Nd, Sm, a face-centered cubic compound is obtained from each reaction. The cell parameters are respectively 5.144, 5.089, 5.031, 4.994, and 4.943 ± 0.005A˚. The compounds appear golden yellow with a metallic luster. From chemical analyses and cell parameter consideration it is concluded that these compounds are the rare earth monoxides. For <ce:italic>Ln</ce:italic> =Gd, Dy, Tm, no reaction is observed at 50 kbar and 1000°C. The rare earth monoxides show a variety of properties: LaO, CeO, PrO, and NdO are metallic with the rare earth in the trivalent state; EuO and YbO are semiconductors with the rare earth in the divalent state; SmO is metallic with samarium in an intermediate valence state close to 3.</ce:simple-para></ce:abstract-sec></ce:abstract></head><tail><ce:bibliography><ce:section-title>Reference</ce:section-title><ce:bibliography-sec><ce:bib-reference id="bib1"><ce:label>1.</ce:label><sb:reference><sb:contribution><sb:authors><sb:author><ce:surname>Felmlee</ce:surname><ce:given-name>T.L.</ce:given-name></sb:author><sb:author><ce:surname>Eyring</ce:surname><ce:given-name>L.</ce:given-name></sb:author></sb:authors></sb:contribution><sb:host><sb:issue><sb:series><sb:title><sb:maintitle>Inorg. 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Briand, 92190 Meudon, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">J.</namePart><namePart type="family">Loriers</namePart><affiliation>E.R. 211, CNRS, 1 place A. Briand, 92190 Meudon, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article" authority="ISTEX" authorityURI="https://content-type.data.istex.fr" valueURI="https://content-type.data.istex.fr/ark:/67375/XTP-1JC4F85T-7">research-article</genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1981</dateIssued><dateModified encoding="w3cdtf">1980-05-28</dateModified><copyrightDate encoding="w3cdtf">1981</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><abstract lang="en">Abstract: The standard Gibbs energy changes for the formation of an ionic or metallic monoxide from rare earth metal and sesquioxide have been calculated. Under high pressures ionic ytterbium monoxide and lighter rare earth metallic monoxides should be obtained, which is confirmed by experiments in a belt-type apparatus in the range 15–80 kbar and 500-1200°C. For Ln =La, Ce, Pr, Nd, Sm, a face-centered cubic compound is obtained from each reaction. The cell parameters are respectively 5.144, 5.089, 5.031, 4.994, and 4.943 ± 0.005A˚. The compounds appear golden yellow with a metallic luster. From chemical analyses and cell parameter consideration it is concluded that these compounds are the rare earth monoxides. For Ln =Gd, Dy, Tm, no reaction is observed at 50 kbar and 1000°C. The rare earth monoxides show a variety of properties: LaO, CeO, PrO, and NdO are metallic with the rare earth in the trivalent state; EuO and YbO are semiconductors with the rare earth in the divalent state; SmO is metallic with samarium in an intermediate valence state close to 3.</abstract><relatedItem type="host"><titleInfo><title>Journal of Solid State Chemistry</title></titleInfo><titleInfo type="abbreviated"><title>YJSSC</title></titleInfo><genre type="journal" authority="ISTEX" authorityURI="https://publication-type.data.istex.fr" valueURI="https://publication-type.data.istex.fr/ark:/67375/JMC-0GLKJH51-B">journal</genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">19810301</dateIssued></originInfo><identifier type="ISSN">0022-4596</identifier><identifier type="PII">S0022-4596(81)X8002-8</identifier><part><date>19810301</date><detail type="volume"><number>36</number><caption>vol.</caption></detail><detail type="issue"><number>3</number><caption>no.</caption></detail><extent unit="issue-pages"><start>261</start><end>389</end></extent><extent unit="pages"><start>261</start><end>270</end></extent></part></relatedItem><identifier type="istex">9DC7DF5A940A9A31DB5E3F9C434F871C0BD9A26A</identifier><identifier type="ark">ark:/67375/6H6-ZN74MT5N-M</identifier><identifier type="DOI">10.1016/0022-4596(81)90436-9</identifier><identifier type="PII">0022-4596(81)90436-9</identifier><identifier type="ArticleID">81904369</identifier><accessCondition type="use and reproduction" contentType="copyright">©1981 Academic Press, Inc.</accessCondition><recordInfo><recordContentSource authority="ISTEX" authorityURI="https://loaded-corpus.data.istex.fr" valueURI="https://loaded-corpus.data.istex.fr/ark:/67375/XBH-HKKZVM7B-M">elsevier</recordContentSource><recordOrigin>Academic Press, Inc., ©1981</recordOrigin></recordInfo></mods><json:item><extension>json</extension><original>false</original><mimetype>application/json</mimetype><uri>https://api.istex.fr/document/9DC7DF5A940A9A31DB5E3F9C434F871C0BD9A26A/metadata/json</uri></json:item></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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