Preparation and Characterization of Nanometer Iron Oxide by Sol-Gel Method and Supercritical Fluid Drying Technology
Iron oxide nanometer powders were prepared by using sol-gel method and the supercritical fluid drying technology (SCFD) from inorganic salts. The characteristics of the iron oxide nanometer powders were characterized systematically. The results showed that the drying and crystallization of the produ...
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| Veröffentlicht in: | Key engineering materials 2008-01, Vol.368-372, p.617-619 |
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| container_title | Key engineering materials |
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| creator | Zhang, Yu Dong, Yong Gang Cao, Jian Xin Nie, Deng Pan Liu, Fei |
| description | Iron oxide nanometer powders were prepared by using sol-gel method and the supercritical
fluid drying technology (SCFD) from inorganic salts. The characteristics of the iron oxide nanometer
powders were characterized systematically. The results showed that the drying and crystallization of the
production could be achieved in one step by SCFD method; furthermore, a highly dispersed, size
uniformed and with better crystallization magnetite (Fe3O4) nanoparticles can be obtained. Phase
transformation of the as-synthesized powders occurs at about 80°C, and only hematite (α-Fe2O3) can be
obtained when being heated at temperatures higher than 400°C. The production synthesized by SCFD
exhibits significant magnetic properties. As the heat-treated temperature increase, the magnetic
properties of the sample decrease gradually. |
| doi_str_mv | 10.4028/www.scientific.net/KEM.368-372.617 |
| format | Article |
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fluid drying technology (SCFD) from inorganic salts. The characteristics of the iron oxide nanometer
powders were characterized systematically. The results showed that the drying and crystallization of the
production could be achieved in one step by SCFD method; furthermore, a highly dispersed, size
uniformed and with better crystallization magnetite (Fe3O4) nanoparticles can be obtained. Phase
transformation of the as-synthesized powders occurs at about 80°C, and only hematite (α-Fe2O3) can be
obtained when being heated at temperatures higher than 400°C. The production synthesized by SCFD
exhibits significant magnetic properties. As the heat-treated temperature increase, the magnetic
properties of the sample decrease gradually.</description><identifier>ISSN: 1013-9826</identifier><identifier>ISSN: 1662-9795</identifier><identifier>EISSN: 1662-9795</identifier><identifier>DOI: 10.4028/www.scientific.net/KEM.368-372.617</identifier><language>eng</language><publisher>Trans Tech Publications Ltd</publisher><ispartof>Key engineering materials, 2008-01, Vol.368-372, p.617-619</ispartof><rights>2008 Trans Tech Publications Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c301t-41c9aed03728b672eac23f8d00beef393a6fc36d3e820d1de8f53bfb44df40b53</citedby><cites>FETCH-LOGICAL-c301t-41c9aed03728b672eac23f8d00beef393a6fc36d3e820d1de8f53bfb44df40b53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttps://www.scientific.net/Image/TitleCover/101?width=600</thumbnail><link.rule.ids>314,778,782,27907,27908</link.rule.ids></links><search><creatorcontrib>Zhang, Yu</creatorcontrib><creatorcontrib>Dong, Yong Gang</creatorcontrib><creatorcontrib>Cao, Jian Xin</creatorcontrib><creatorcontrib>Nie, Deng Pan</creatorcontrib><creatorcontrib>Liu, Fei</creatorcontrib><title>Preparation and Characterization of Nanometer Iron Oxide by Sol-Gel Method and Supercritical Fluid Drying Technology</title><title>Key engineering materials</title><description>Iron oxide nanometer powders were prepared by using sol-gel method and the supercritical
fluid drying technology (SCFD) from inorganic salts. The characteristics of the iron oxide nanometer
powders were characterized systematically. The results showed that the drying and crystallization of the
production could be achieved in one step by SCFD method; furthermore, a highly dispersed, size
uniformed and with better crystallization magnetite (Fe3O4) nanoparticles can be obtained. Phase
transformation of the as-synthesized powders occurs at about 80°C, and only hematite (α-Fe2O3) can be
obtained when being heated at temperatures higher than 400°C. The production synthesized by SCFD
exhibits significant magnetic properties. As the heat-treated temperature increase, the magnetic
properties of the sample decrease gradually.</description><issn>1013-9826</issn><issn>1662-9795</issn><issn>1662-9795</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqVkEFPAjEQhTdGExX9Dz15MNml3S7L7lFRkIhiAp6bbjuFmqXFthvEX28VE8-eZuZl5mXelyTXBGcFzqv-brfLvNBgglZaZAZC__H-KaNlldJhnpVkeJSckbLM03pYD45jjwlN6yovT5Nz798wpqQig7MkvDjYcseDtgZxI9FoHScRwOnPg2gVeubGbiBqaOqiMv_QElCzRwvbphNo0ROEtZU_54tuC044HbTgLRq3nZbozu21WaEliLWxrV3tL5ITxVsPl7-1l7yO75ejh3Q2n0xHN7NUUExCWhBRc5A4JqqacpgDFzlVlcS4AVC0prxUgpaSQpVjSSRUakAb1RSFVAVuBrSXXB18t86-d-AD22gvoG25Adt5RikhGOM6Lt4eFoWz3jtQbOv0hrs9I5h9A2cROPsDziJwFoGzCJzF91gEHk3uDibBceNDTMvebOdMTPgfmy9U2paR</recordid><startdate>20080101</startdate><enddate>20080101</enddate><creator>Zhang, Yu</creator><creator>Dong, Yong Gang</creator><creator>Cao, Jian Xin</creator><creator>Nie, Deng Pan</creator><creator>Liu, Fei</creator><general>Trans Tech Publications Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20080101</creationdate><title>Preparation and Characterization of Nanometer Iron Oxide by Sol-Gel Method and Supercritical Fluid Drying Technology</title><author>Zhang, Yu ; Dong, Yong Gang ; Cao, Jian Xin ; Nie, Deng Pan ; Liu, Fei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c301t-41c9aed03728b672eac23f8d00beef393a6fc36d3e820d1de8f53bfb44df40b53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Yu</creatorcontrib><creatorcontrib>Dong, Yong Gang</creatorcontrib><creatorcontrib>Cao, Jian Xin</creatorcontrib><creatorcontrib>Nie, Deng Pan</creatorcontrib><creatorcontrib>Liu, Fei</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Key engineering materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Yu</au><au>Dong, Yong Gang</au><au>Cao, Jian Xin</au><au>Nie, Deng Pan</au><au>Liu, Fei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation and Characterization of Nanometer Iron Oxide by Sol-Gel Method and Supercritical Fluid Drying Technology</atitle><jtitle>Key engineering materials</jtitle><date>2008-01-01</date><risdate>2008</risdate><volume>368-372</volume><spage>617</spage><epage>619</epage><pages>617-619</pages><issn>1013-9826</issn><issn>1662-9795</issn><eissn>1662-9795</eissn><abstract>Iron oxide nanometer powders were prepared by using sol-gel method and the supercritical
fluid drying technology (SCFD) from inorganic salts. The characteristics of the iron oxide nanometer
powders were characterized systematically. The results showed that the drying and crystallization of the
production could be achieved in one step by SCFD method; furthermore, a highly dispersed, size
uniformed and with better crystallization magnetite (Fe3O4) nanoparticles can be obtained. Phase
transformation of the as-synthesized powders occurs at about 80°C, and only hematite (α-Fe2O3) can be
obtained when being heated at temperatures higher than 400°C. The production synthesized by SCFD
exhibits significant magnetic properties. As the heat-treated temperature increase, the magnetic
properties of the sample decrease gradually.</abstract><pub>Trans Tech Publications Ltd</pub><doi>10.4028/www.scientific.net/KEM.368-372.617</doi><tpages>3</tpages></addata></record> |
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| title | Preparation and Characterization of Nanometer Iron Oxide by Sol-Gel Method and Supercritical Fluid Drying Technology |
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