Noble Metal Immersion Spectroscopy of Silica Alcogels and Aerogels
We have fabricated aerogels containing gold and silver nanoparticles for gas catalysis applications. The technique of immersion spectroscopy is extended to porous or heterogeneous media allowing the surface area of metal available for catalytic gas reaction to be determined. Specifically, we apply t...
Gespeichert in:
| Veröffentlicht in: | Journal of porous materials 2000-06, Vol.7 (4), p.499-508 |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 508 |
|---|---|
| container_issue | 4 |
| container_start_page | 499 |
| container_title | Journal of porous materials |
| container_volume | 7 |
| creator | Smith, David D Sibille, Laurent Ignont, Erica Cronise, Raymond J Noever, David A |
| description | We have fabricated aerogels containing gold and silver nanoparticles for gas catalysis applications. The technique of immersion spectroscopy is extended to porous or heterogeneous media allowing the surface area of metal available for catalytic gas reaction to be determined. Specifically, we apply the predominant effective medium theories to the heterogeneous interlayer surrounding each particle to determine the average fractional composition of each component in this inhomogeneous layer. The technique is satisfactory for statistically random metal particle distributions but needs further modification for aggregated or surfactant modified systems. Additionally, the kinetics suggest that collective particle interactions in coagulated clusters are perturbed during silica gelation resulting in a change in the aggregate geometry.[PUBLICATION ABSTRACT] |
| doi_str_mv | 10.1023/A:1009678811808 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest</sourceid><recordid>TN_cdi_proquest_miscellaneous_926277633</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>926277633</sourcerecordid><originalsourceid>FETCH-LOGICAL-p212t-bf1f2056b259c35be6bec54c69d580bab80fccd7fea4c477bcb6c0b6adf7dbc93</originalsourceid><addsrcrecordid>eNpdjz1PwzAYhC0EEqUws1osTAF_22ELVYFKBYbCHNlvbJTKiUOcDvx7ImBiujvp0ekOoUtKbihh_La6o4SUShtDqSHmCC2o1LwQRorj2XNDCsaYOEVnOe_JjBqtF-j-Jbno8bOfbMSbrvNjblOPd4OHaUwZ0vCFU8C7NrZgcRUhffiYse0bXPnxJ5yjk2Bj9hd_ukTvD-u31VOxfX3crKptMTDKpsIFGhiRyjFZApfOK-dBClBlIw1x1hkSABodvBUgtHbgFBCnbBN046DkS3T92zuM6fPg81R3bQYfo-19OuS6ZIpprTifyat_5D4dxn4eVxsjlCnn8_wbHr5amA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>884689098</pqid></control><display><type>article</type><title>Noble Metal Immersion Spectroscopy of Silica Alcogels and Aerogels</title><source>SpringerLink Journals</source><creator>Smith, David D ; Sibille, Laurent ; Ignont, Erica ; Cronise, Raymond J ; Noever, David A</creator><creatorcontrib>Smith, David D ; Sibille, Laurent ; Ignont, Erica ; Cronise, Raymond J ; Noever, David A</creatorcontrib><description>We have fabricated aerogels containing gold and silver nanoparticles for gas catalysis applications. The technique of immersion spectroscopy is extended to porous or heterogeneous media allowing the surface area of metal available for catalytic gas reaction to be determined. Specifically, we apply the predominant effective medium theories to the heterogeneous interlayer surrounding each particle to determine the average fractional composition of each component in this inhomogeneous layer. The technique is satisfactory for statistically random metal particle distributions but needs further modification for aggregated or surfactant modified systems. Additionally, the kinetics suggest that collective particle interactions in coagulated clusters are perturbed during silica gelation resulting in a change in the aggregate geometry.[PUBLICATION ABSTRACT]</description><identifier>ISSN: 1380-2224</identifier><identifier>EISSN: 1573-4854</identifier><identifier>DOI: 10.1023/A:1009678811808</identifier><language>eng</language><publisher>Dordrecht: Springer Nature B.V</publisher><subject>Aerogels ; Catalysis ; Clusters ; Immersion ; Noble metals ; Silicon dioxide ; Silver ; Spectroscopy ; Spectrum analysis</subject><ispartof>Journal of porous materials, 2000-06, Vol.7 (4), p.499-508</ispartof><rights>Kluwer Academic Publishers 2000</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Smith, David D</creatorcontrib><creatorcontrib>Sibille, Laurent</creatorcontrib><creatorcontrib>Ignont, Erica</creatorcontrib><creatorcontrib>Cronise, Raymond J</creatorcontrib><creatorcontrib>Noever, David A</creatorcontrib><title>Noble Metal Immersion Spectroscopy of Silica Alcogels and Aerogels</title><title>Journal of porous materials</title><description>We have fabricated aerogels containing gold and silver nanoparticles for gas catalysis applications. The technique of immersion spectroscopy is extended to porous or heterogeneous media allowing the surface area of metal available for catalytic gas reaction to be determined. Specifically, we apply the predominant effective medium theories to the heterogeneous interlayer surrounding each particle to determine the average fractional composition of each component in this inhomogeneous layer. The technique is satisfactory for statistically random metal particle distributions but needs further modification for aggregated or surfactant modified systems. Additionally, the kinetics suggest that collective particle interactions in coagulated clusters are perturbed during silica gelation resulting in a change in the aggregate geometry.[PUBLICATION ABSTRACT]</description><subject>Aerogels</subject><subject>Catalysis</subject><subject>Clusters</subject><subject>Immersion</subject><subject>Noble metals</subject><subject>Silicon dioxide</subject><subject>Silver</subject><subject>Spectroscopy</subject><subject>Spectrum analysis</subject><issn>1380-2224</issn><issn>1573-4854</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><recordid>eNpdjz1PwzAYhC0EEqUws1osTAF_22ELVYFKBYbCHNlvbJTKiUOcDvx7ImBiujvp0ekOoUtKbihh_La6o4SUShtDqSHmCC2o1LwQRorj2XNDCsaYOEVnOe_JjBqtF-j-Jbno8bOfbMSbrvNjblOPd4OHaUwZ0vCFU8C7NrZgcRUhffiYse0bXPnxJ5yjk2Bj9hd_ukTvD-u31VOxfX3crKptMTDKpsIFGhiRyjFZApfOK-dBClBlIw1x1hkSABodvBUgtHbgFBCnbBN046DkS3T92zuM6fPg81R3bQYfo-19OuS6ZIpprTifyat_5D4dxn4eVxsjlCnn8_wbHr5amA</recordid><startdate>20000601</startdate><enddate>20000601</enddate><creator>Smith, David D</creator><creator>Sibille, Laurent</creator><creator>Ignont, Erica</creator><creator>Cronise, Raymond J</creator><creator>Noever, David A</creator><general>Springer Nature B.V</general><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20000601</creationdate><title>Noble Metal Immersion Spectroscopy of Silica Alcogels and Aerogels</title><author>Smith, David D ; Sibille, Laurent ; Ignont, Erica ; Cronise, Raymond J ; Noever, David A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p212t-bf1f2056b259c35be6bec54c69d580bab80fccd7fea4c477bcb6c0b6adf7dbc93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Aerogels</topic><topic>Catalysis</topic><topic>Clusters</topic><topic>Immersion</topic><topic>Noble metals</topic><topic>Silicon dioxide</topic><topic>Silver</topic><topic>Spectroscopy</topic><topic>Spectrum analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Smith, David D</creatorcontrib><creatorcontrib>Sibille, Laurent</creatorcontrib><creatorcontrib>Ignont, Erica</creatorcontrib><creatorcontrib>Cronise, Raymond J</creatorcontrib><creatorcontrib>Noever, David A</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of porous materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Smith, David D</au><au>Sibille, Laurent</au><au>Ignont, Erica</au><au>Cronise, Raymond J</au><au>Noever, David A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Noble Metal Immersion Spectroscopy of Silica Alcogels and Aerogels</atitle><jtitle>Journal of porous materials</jtitle><date>2000-06-01</date><risdate>2000</risdate><volume>7</volume><issue>4</issue><spage>499</spage><epage>508</epage><pages>499-508</pages><issn>1380-2224</issn><eissn>1573-4854</eissn><abstract>We have fabricated aerogels containing gold and silver nanoparticles for gas catalysis applications. The technique of immersion spectroscopy is extended to porous or heterogeneous media allowing the surface area of metal available for catalytic gas reaction to be determined. Specifically, we apply the predominant effective medium theories to the heterogeneous interlayer surrounding each particle to determine the average fractional composition of each component in this inhomogeneous layer. The technique is satisfactory for statistically random metal particle distributions but needs further modification for aggregated or surfactant modified systems. Additionally, the kinetics suggest that collective particle interactions in coagulated clusters are perturbed during silica gelation resulting in a change in the aggregate geometry.[PUBLICATION ABSTRACT]</abstract><cop>Dordrecht</cop><pub>Springer Nature B.V</pub><doi>10.1023/A:1009678811808</doi><tpages>10</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1380-2224 |
| ispartof | Journal of porous materials, 2000-06, Vol.7 (4), p.499-508 |
| issn | 1380-2224 1573-4854 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_926277633 |
| source | SpringerLink Journals |
| subjects | Aerogels Catalysis Clusters Immersion Noble metals Silicon dioxide Silver Spectroscopy Spectrum analysis |
| title | Noble Metal Immersion Spectroscopy of Silica Alcogels and Aerogels |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-19T04%3A23%3A04IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Noble%20Metal%20Immersion%20Spectroscopy%20of%20Silica%20Alcogels%20and%20Aerogels&rft.jtitle=Journal%20of%20porous%20materials&rft.au=Smith,%20David%20D&rft.date=2000-06-01&rft.volume=7&rft.issue=4&rft.spage=499&rft.epage=508&rft.pages=499-508&rft.issn=1380-2224&rft.eissn=1573-4854&rft_id=info:doi/10.1023/A:1009678811808&rft_dat=%3Cproquest%3E926277633%3C/proquest%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=884689098&rft_id=info:pmid/&rfr_iscdi=true |