Synthesis and characterization of rhombohedral- and tetragonal-lanthanum oxyfluoride powders
Rhombohedral- and tetragonal-lanthanum oxyfluoride (LaOF) powders were prepared by thermal decomposition of lanthanum(III) carbonate fluoride (LaFCO3) powders that had been obtained from boiling an aqueous solution containing lanthanum(III) salt, fluoride ion (F−), and urea. The conversion process o...
Gespeichert in:
| Veröffentlicht in: | Ceramics international 2013-03, Vol.39 (2), p.1533-1538 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 1538 |
|---|---|
| container_issue | 2 |
| container_start_page | 1533 |
| container_title | Ceramics international |
| container_volume | 39 |
| creator | Woo, Dong Chan Lee, Min-Ho Jung, Woo-Sik |
| description | Rhombohedral- and tetragonal-lanthanum oxyfluoride (LaOF) powders were prepared by thermal decomposition of lanthanum(III) carbonate fluoride (LaFCO3) powders that had been obtained from boiling an aqueous solution containing lanthanum(III) salt, fluoride ion (F−), and urea. The conversion process of LaFCO3 to LaOF was monitored by thermogravimetry, powder X-ray diffraction, and 19F magic-angle spinning nuclear magnetic resonance spectroscopy. The crystal structure (rhombohedral, tetragonal) of LaOF depended on the mole ratio of F− to La3+ ions in the preparation of LaFCO3, and tetragonal-LaOF was completely transformed into rhombohedral-LaOF at 1000°C. The difference in crystal structures was reflected in the intensity of the 5D0→7F0 transition peak in the luminescence spectra of Eu3+-doped LaOF powders. |
| doi_str_mv | 10.1016/j.ceramint.2012.07.103 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1692382162</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0272884212007377</els_id><sourcerecordid>1323216726</sourcerecordid><originalsourceid>FETCH-LOGICAL-c378t-bdac5f32134184f3092a579ee6d7dd6bf523a00a5b61e6805b859b613599a60c3</originalsourceid><addsrcrecordid>eNqFUMtOwzAQtBBIlMIvoBy5JPiROMkNVPGSKnEAbkiWY2-IqyQutgOUr8elcO5pd0czq5lB6JzgjGDCL1eZAicHM4aMYkIzXEacHaAZqUqWsrrgh2iGaUnTqsrpMTrxfoWjsM7xDL0-bcbQgTc-kaNOVCedVAGc-ZbB2DGxbeI6OzS2A-1kn_6yAgQn3-wY715GuRynIbFfm7afrDMakrX91OD8KTpqZe_h7G_O0cvtzfPiPl0-3j0srpepYmUV0kZLVbSMEpaTKm8ZrqksyhqA61Jr3rQFZRJjWTScAK9w0VRFHXdW1LXkWLE5utj9XTv7PoEPYjBeQR_NgZ28iFkpqyjhdD-V0WiEl5RHKt9RlbPeO2jF2plBuo0gWGybFyvx37zYNi9wGXEWhVc7IcTMHwac8MrAqEAbByoIbc2-Fz-ssZFP</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1323216726</pqid></control><display><type>article</type><title>Synthesis and characterization of rhombohedral- and tetragonal-lanthanum oxyfluoride powders</title><source>Elsevier ScienceDirect Journals Complete</source><creator>Woo, Dong Chan ; Lee, Min-Ho ; Jung, Woo-Sik</creator><creatorcontrib>Woo, Dong Chan ; Lee, Min-Ho ; Jung, Woo-Sik</creatorcontrib><description>Rhombohedral- and tetragonal-lanthanum oxyfluoride (LaOF) powders were prepared by thermal decomposition of lanthanum(III) carbonate fluoride (LaFCO3) powders that had been obtained from boiling an aqueous solution containing lanthanum(III) salt, fluoride ion (F−), and urea. The conversion process of LaFCO3 to LaOF was monitored by thermogravimetry, powder X-ray diffraction, and 19F magic-angle spinning nuclear magnetic resonance spectroscopy. The crystal structure (rhombohedral, tetragonal) of LaOF depended on the mole ratio of F− to La3+ ions in the preparation of LaFCO3, and tetragonal-LaOF was completely transformed into rhombohedral-LaOF at 1000°C. The difference in crystal structures was reflected in the intensity of the 5D0→7F0 transition peak in the luminescence spectra of Eu3+-doped LaOF powders.</description><identifier>ISSN: 0272-8842</identifier><identifier>EISSN: 1873-3956</identifier><identifier>DOI: 10.1016/j.ceramint.2012.07.103</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Ceramics ; Conversion ; Crystal structure ; Eu3+-doping ; Fluorides ; LaFCO3 ; LaOF ; Luminescence ; Oxyfluorides ; Spectra ; Synthesis ; Ureas</subject><ispartof>Ceramics international, 2013-03, Vol.39 (2), p.1533-1538</ispartof><rights>2012 Elsevier Ltd and Techna Group S.r.l.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c378t-bdac5f32134184f3092a579ee6d7dd6bf523a00a5b61e6805b859b613599a60c3</citedby><cites>FETCH-LOGICAL-c378t-bdac5f32134184f3092a579ee6d7dd6bf523a00a5b61e6805b859b613599a60c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ceramint.2012.07.103$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Woo, Dong Chan</creatorcontrib><creatorcontrib>Lee, Min-Ho</creatorcontrib><creatorcontrib>Jung, Woo-Sik</creatorcontrib><title>Synthesis and characterization of rhombohedral- and tetragonal-lanthanum oxyfluoride powders</title><title>Ceramics international</title><description>Rhombohedral- and tetragonal-lanthanum oxyfluoride (LaOF) powders were prepared by thermal decomposition of lanthanum(III) carbonate fluoride (LaFCO3) powders that had been obtained from boiling an aqueous solution containing lanthanum(III) salt, fluoride ion (F−), and urea. The conversion process of LaFCO3 to LaOF was monitored by thermogravimetry, powder X-ray diffraction, and 19F magic-angle spinning nuclear magnetic resonance spectroscopy. The crystal structure (rhombohedral, tetragonal) of LaOF depended on the mole ratio of F− to La3+ ions in the preparation of LaFCO3, and tetragonal-LaOF was completely transformed into rhombohedral-LaOF at 1000°C. The difference in crystal structures was reflected in the intensity of the 5D0→7F0 transition peak in the luminescence spectra of Eu3+-doped LaOF powders.</description><subject>Ceramics</subject><subject>Conversion</subject><subject>Crystal structure</subject><subject>Eu3+-doping</subject><subject>Fluorides</subject><subject>LaFCO3</subject><subject>LaOF</subject><subject>Luminescence</subject><subject>Oxyfluorides</subject><subject>Spectra</subject><subject>Synthesis</subject><subject>Ureas</subject><issn>0272-8842</issn><issn>1873-3956</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqFUMtOwzAQtBBIlMIvoBy5JPiROMkNVPGSKnEAbkiWY2-IqyQutgOUr8elcO5pd0czq5lB6JzgjGDCL1eZAicHM4aMYkIzXEacHaAZqUqWsrrgh2iGaUnTqsrpMTrxfoWjsM7xDL0-bcbQgTc-kaNOVCedVAGc-ZbB2DGxbeI6OzS2A-1kn_6yAgQn3-wY715GuRynIbFfm7afrDMakrX91OD8KTpqZe_h7G_O0cvtzfPiPl0-3j0srpepYmUV0kZLVbSMEpaTKm8ZrqksyhqA61Jr3rQFZRJjWTScAK9w0VRFHXdW1LXkWLE5utj9XTv7PoEPYjBeQR_NgZ28iFkpqyjhdD-V0WiEl5RHKt9RlbPeO2jF2plBuo0gWGybFyvx37zYNi9wGXEWhVc7IcTMHwac8MrAqEAbByoIbc2-Fz-ssZFP</recordid><startdate>20130301</startdate><enddate>20130301</enddate><creator>Woo, Dong Chan</creator><creator>Lee, Min-Ho</creator><creator>Jung, Woo-Sik</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20130301</creationdate><title>Synthesis and characterization of rhombohedral- and tetragonal-lanthanum oxyfluoride powders</title><author>Woo, Dong Chan ; Lee, Min-Ho ; Jung, Woo-Sik</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c378t-bdac5f32134184f3092a579ee6d7dd6bf523a00a5b61e6805b859b613599a60c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Ceramics</topic><topic>Conversion</topic><topic>Crystal structure</topic><topic>Eu3+-doping</topic><topic>Fluorides</topic><topic>LaFCO3</topic><topic>LaOF</topic><topic>Luminescence</topic><topic>Oxyfluorides</topic><topic>Spectra</topic><topic>Synthesis</topic><topic>Ureas</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Woo, Dong Chan</creatorcontrib><creatorcontrib>Lee, Min-Ho</creatorcontrib><creatorcontrib>Jung, Woo-Sik</creatorcontrib><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Ceramics international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Woo, Dong Chan</au><au>Lee, Min-Ho</au><au>Jung, Woo-Sik</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis and characterization of rhombohedral- and tetragonal-lanthanum oxyfluoride powders</atitle><jtitle>Ceramics international</jtitle><date>2013-03-01</date><risdate>2013</risdate><volume>39</volume><issue>2</issue><spage>1533</spage><epage>1538</epage><pages>1533-1538</pages><issn>0272-8842</issn><eissn>1873-3956</eissn><abstract>Rhombohedral- and tetragonal-lanthanum oxyfluoride (LaOF) powders were prepared by thermal decomposition of lanthanum(III) carbonate fluoride (LaFCO3) powders that had been obtained from boiling an aqueous solution containing lanthanum(III) salt, fluoride ion (F−), and urea. The conversion process of LaFCO3 to LaOF was monitored by thermogravimetry, powder X-ray diffraction, and 19F magic-angle spinning nuclear magnetic resonance spectroscopy. The crystal structure (rhombohedral, tetragonal) of LaOF depended on the mole ratio of F− to La3+ ions in the preparation of LaFCO3, and tetragonal-LaOF was completely transformed into rhombohedral-LaOF at 1000°C. The difference in crystal structures was reflected in the intensity of the 5D0→7F0 transition peak in the luminescence spectra of Eu3+-doped LaOF powders.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.ceramint.2012.07.103</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0272-8842 |
| ispartof | Ceramics international, 2013-03, Vol.39 (2), p.1533-1538 |
| issn | 0272-8842 1873-3956 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1692382162 |
| source | Elsevier ScienceDirect Journals Complete |
| subjects | Ceramics Conversion Crystal structure Eu3+-doping Fluorides LaFCO3 LaOF Luminescence Oxyfluorides Spectra Synthesis Ureas |
| title | Synthesis and characterization of rhombohedral- and tetragonal-lanthanum oxyfluoride powders |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-25T00%3A36%3A06IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Synthesis%20and%20characterization%20of%20rhombohedral-%20and%20tetragonal-lanthanum%20oxyfluoride%20powders&rft.jtitle=Ceramics%20international&rft.au=Woo,%20Dong%20Chan&rft.date=2013-03-01&rft.volume=39&rft.issue=2&rft.spage=1533&rft.epage=1538&rft.pages=1533-1538&rft.issn=0272-8842&rft.eissn=1873-3956&rft_id=info:doi/10.1016/j.ceramint.2012.07.103&rft_dat=%3Cproquest_cross%3E1323216726%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1323216726&rft_id=info:pmid/&rft_els_id=S0272884212007377&rfr_iscdi=true |