Correlation between gelation time, structure and texture of low-doped silica gels
It is shown how the properties of a porous silica xerogel prepared using a classical sol-gel synthesis can be fine-tuned by a minor modification of the composition. The addition of a doping cation (Cu 2+ , Ca 2+ , Na + ) in trace quantities in the silica sol was found to exert a dramatic effect at a...
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| Veröffentlicht in: | Physical chemistry chemical physics : PCCP 2010-11, Vol.12 (43), p.14477-14484 |
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| container_issue | 43 |
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| container_title | Physical chemistry chemical physics : PCCP |
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| creator | Berrier, Elise Courtheoux, Laurence Bouazaoui, Mohamed Capoen, Bruno Turrell, Sylvia |
| description | It is shown how the properties of a porous silica xerogel prepared using a classical sol-gel synthesis can be fine-tuned by a minor modification of the composition. The addition of a doping cation (Cu
2+
, Ca
2+
, Na
+
) in trace quantities in the silica sol was found to exert a dramatic effect at all stages of material preparation. An investigation of both liquid and solid phases is presented, making it possible to highlight strong correlations. The time-resolved speciation of Si-containing moieties in the sol was found to be an indication of the structuration of the gel, which was reflected by the porosity and by the molecular structure of the resulting porous material. Based on a careful comparison of several slightly doped silica gels, a model is proposed which makes it possible to predict the structure and the texture of a silica gel from data recorded early in the liquid phase.
The properties of a solid porous silica xerogel can be fine-tuned by doping the sol in the liquid phase. |
| doi_str_mv | 10.1039/c0cp01090a |
| format | Article |
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2+
, Ca
2+
, Na
+
) in trace quantities in the silica sol was found to exert a dramatic effect at all stages of material preparation. An investigation of both liquid and solid phases is presented, making it possible to highlight strong correlations. The time-resolved speciation of Si-containing moieties in the sol was found to be an indication of the structuration of the gel, which was reflected by the porosity and by the molecular structure of the resulting porous material. Based on a careful comparison of several slightly doped silica gels, a model is proposed which makes it possible to predict the structure and the texture of a silica gel from data recorded early in the liquid phase.
The properties of a solid porous silica xerogel can be fine-tuned by doping the sol in the liquid phase.</description><identifier>ISSN: 1463-9076</identifier><identifier>EISSN: 1463-9084</identifier><identifier>DOI: 10.1039/c0cp01090a</identifier><identifier>PMID: 20886162</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Adsorption ; Chemical Physics ; Chemical Sciences ; Chemistry ; Colloidal gels. Colloidal sols ; Colloidal state and disperse state ; Exact sciences and technology ; General and physical chemistry ; Hydrogen-Ion Concentration ; Kinetics ; Nitrogen - chemistry ; or physical chemistry ; Phase Transition ; Physics ; Porosity ; Porous materials ; Silica Gel - chemistry ; Spectrum Analysis, Raman ; Theoretical and</subject><ispartof>Physical chemistry chemical physics : PCCP, 2010-11, Vol.12 (43), p.14477-14484</ispartof><rights>2015 INIST-CNRS</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c398t-5518662e531aa93ce0e56da8799d5f9a807efb20d0e20b06723cf48906d102d43</citedby><cites>FETCH-LOGICAL-c398t-5518662e531aa93ce0e56da8799d5f9a807efb20d0e20b06723cf48906d102d43</cites><orcidid>0000-0001-9398-5643 ; 0000-0001-8664-9684</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=23433406$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20886162$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-00583771$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Berrier, Elise</creatorcontrib><creatorcontrib>Courtheoux, Laurence</creatorcontrib><creatorcontrib>Bouazaoui, Mohamed</creatorcontrib><creatorcontrib>Capoen, Bruno</creatorcontrib><creatorcontrib>Turrell, Sylvia</creatorcontrib><title>Correlation between gelation time, structure and texture of low-doped silica gels</title><title>Physical chemistry chemical physics : PCCP</title><addtitle>Phys Chem Chem Phys</addtitle><description>It is shown how the properties of a porous silica xerogel prepared using a classical sol-gel synthesis can be fine-tuned by a minor modification of the composition. The addition of a doping cation (Cu
2+
, Ca
2+
, Na
+
) in trace quantities in the silica sol was found to exert a dramatic effect at all stages of material preparation. An investigation of both liquid and solid phases is presented, making it possible to highlight strong correlations. The time-resolved speciation of Si-containing moieties in the sol was found to be an indication of the structuration of the gel, which was reflected by the porosity and by the molecular structure of the resulting porous material. Based on a careful comparison of several slightly doped silica gels, a model is proposed which makes it possible to predict the structure and the texture of a silica gel from data recorded early in the liquid phase.
The properties of a solid porous silica xerogel can be fine-tuned by doping the sol in the liquid phase.</description><subject>Adsorption</subject><subject>Chemical Physics</subject><subject>Chemical Sciences</subject><subject>Chemistry</subject><subject>Colloidal gels. Colloidal sols</subject><subject>Colloidal state and disperse state</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Hydrogen-Ion Concentration</subject><subject>Kinetics</subject><subject>Nitrogen - chemistry</subject><subject>or physical chemistry</subject><subject>Phase Transition</subject><subject>Physics</subject><subject>Porosity</subject><subject>Porous materials</subject><subject>Silica Gel - chemistry</subject><subject>Spectrum Analysis, Raman</subject><subject>Theoretical and</subject><issn>1463-9076</issn><issn>1463-9084</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp90M9L7DAQB_Agir8v3n3Ug4hiddKkaXKUxV-wIIKeQzaZvlfpNn1J6-p_b9ddV7x4yjDzyXdgCDmgcEGBqUsLtgUKCswa2aZcsFSB5OuruhBbZCfGFwCgOWWbZCsDKQUV2TZ5HPkQsDZd5Ztkgt0MsUn-fjW6aornSexCb7s-YGIal3T49ln7Mqn9LHW-RZfEqq6smX-Me2SjNHXE_eW7S55vrp9Gd-n44fZ-dDVOLVOyS_OcSiEyzBk1RjGLgLlwRhZKubxURkKB5SQDB5jBBESRMVtyqUA4CpnjbJecLnL_mVq3oZqa8K69qfTd1VjPewC5ZEVBX-lgTxa2Df5_j7HT0yparGvToO-jLgQFzjiHQZ4tpA0-xoDlKpqCnl9bf197wH-Wsf1kim5Fv847gOMlMNGaugymsVX8dowzxkEM7nDhQrSr6Y9FR7_NdetK9gEWlZsb</recordid><startdate>20101121</startdate><enddate>20101121</enddate><creator>Berrier, Elise</creator><creator>Courtheoux, Laurence</creator><creator>Bouazaoui, Mohamed</creator><creator>Capoen, Bruno</creator><creator>Turrell, Sylvia</creator><general>Royal Society of Chemistry</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0001-9398-5643</orcidid><orcidid>https://orcid.org/0000-0001-8664-9684</orcidid></search><sort><creationdate>20101121</creationdate><title>Correlation between gelation time, structure and texture of low-doped silica gels</title><author>Berrier, Elise ; Courtheoux, Laurence ; Bouazaoui, Mohamed ; Capoen, Bruno ; Turrell, Sylvia</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c398t-5518662e531aa93ce0e56da8799d5f9a807efb20d0e20b06723cf48906d102d43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Adsorption</topic><topic>Chemical Physics</topic><topic>Chemical Sciences</topic><topic>Chemistry</topic><topic>Colloidal gels. Colloidal sols</topic><topic>Colloidal state and disperse state</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Hydrogen-Ion Concentration</topic><topic>Kinetics</topic><topic>Nitrogen - chemistry</topic><topic>or physical chemistry</topic><topic>Phase Transition</topic><topic>Physics</topic><topic>Porosity</topic><topic>Porous materials</topic><topic>Silica Gel - chemistry</topic><topic>Spectrum Analysis, Raman</topic><topic>Theoretical and</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Berrier, Elise</creatorcontrib><creatorcontrib>Courtheoux, Laurence</creatorcontrib><creatorcontrib>Bouazaoui, Mohamed</creatorcontrib><creatorcontrib>Capoen, Bruno</creatorcontrib><creatorcontrib>Turrell, Sylvia</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Physical chemistry chemical physics : PCCP</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Berrier, Elise</au><au>Courtheoux, Laurence</au><au>Bouazaoui, Mohamed</au><au>Capoen, Bruno</au><au>Turrell, Sylvia</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Correlation between gelation time, structure and texture of low-doped silica gels</atitle><jtitle>Physical chemistry chemical physics : PCCP</jtitle><addtitle>Phys Chem Chem Phys</addtitle><date>2010-11-21</date><risdate>2010</risdate><volume>12</volume><issue>43</issue><spage>14477</spage><epage>14484</epage><pages>14477-14484</pages><issn>1463-9076</issn><eissn>1463-9084</eissn><abstract>It is shown how the properties of a porous silica xerogel prepared using a classical sol-gel synthesis can be fine-tuned by a minor modification of the composition. The addition of a doping cation (Cu
2+
, Ca
2+
, Na
+
) in trace quantities in the silica sol was found to exert a dramatic effect at all stages of material preparation. An investigation of both liquid and solid phases is presented, making it possible to highlight strong correlations. The time-resolved speciation of Si-containing moieties in the sol was found to be an indication of the structuration of the gel, which was reflected by the porosity and by the molecular structure of the resulting porous material. Based on a careful comparison of several slightly doped silica gels, a model is proposed which makes it possible to predict the structure and the texture of a silica gel from data recorded early in the liquid phase.
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| fulltext | fulltext |
| identifier | ISSN: 1463-9076 |
| ispartof | Physical chemistry chemical physics : PCCP, 2010-11, Vol.12 (43), p.14477-14484 |
| issn | 1463-9076 1463-9084 |
| language | eng |
| recordid | cdi_rsc_primary_c0cp01090a |
| source | MEDLINE; Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Adsorption Chemical Physics Chemical Sciences Chemistry Colloidal gels. Colloidal sols Colloidal state and disperse state Exact sciences and technology General and physical chemistry Hydrogen-Ion Concentration Kinetics Nitrogen - chemistry or physical chemistry Phase Transition Physics Porosity Porous materials Silica Gel - chemistry Spectrum Analysis, Raman Theoretical and |
| title | Correlation between gelation time, structure and texture of low-doped silica gels |
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