Ag2SO4 decorated with fluorescent Agn nanoclusters
Microstructured fluorescent Ag2SO4 is synthesized via anodization of Ag foil in a HF-H2SO4 electrolyte. The residual Ag2O is embedded in the Ag2SO4 deposit and photo-decomposed to fluorescent nanoclusters (Agn). [Display omitted] ► Ag foil was anodized in a HF-H2SO4 electrolyte to produce an Ag2SO4/...
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| Veröffentlicht in: | Applied surface science 2013-04, Vol.270, p.77-81 |
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| container_title | Applied surface science |
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| creator | Fang, Cheng Shapter, Joseph George Voelcker, Nicolas Hans Ellis, Amanda Vera |
| description | Microstructured fluorescent Ag2SO4 is synthesized via anodization of Ag foil in a HF-H2SO4 electrolyte. The residual Ag2O is embedded in the Ag2SO4 deposit and photo-decomposed to fluorescent nanoclusters (Agn). [Display omitted]
► Ag foil was anodized in a HF-H2SO4 electrolyte to produce an Ag2SO4/Ag2O mixed-grain powder. ► The photo-decomposed powder exhibited strong fluorescence. ► We proposed fluorescence arises from silver nanoclusters embedded with the Ag2SO4.
Here we report on the production of an Ag2SO4/Ag2O mixed-grain powder during the anodization of Ag foil in a HF-H2SO4 electrolyte. We propose that there are three competing reactions during the anodization process: (i) the production of Ag2O at the Ag foil anode surface from the presence of water in the electrolyte, (ii) the dissolution of the Ag2O in the presence of HF releasing Ag+ ions, (iii) the precipitation of Ag+ and SO42− ions, as Ag2SO4 on the Ag foil anode surface. This co-precipitation/dissolution process ultimately results in a mixed-grain powder. We then show that the Ag2O embedded within the mixed-grain is photo-decomposed to produce highly fluorescent silver nanoclusters (Agn) which decorate the Ag2SO4 crystals. The Ag2SO4 salt offers a stable matrix for the photo-decomposed Agn nanoclusters to emit their strong fluorescence. |
| doi_str_mv | 10.1016/j.apsusc.2012.12.097 |
| format | Article |
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► Ag foil was anodized in a HF-H2SO4 electrolyte to produce an Ag2SO4/Ag2O mixed-grain powder. ► The photo-decomposed powder exhibited strong fluorescence. ► We proposed fluorescence arises from silver nanoclusters embedded with the Ag2SO4.
Here we report on the production of an Ag2SO4/Ag2O mixed-grain powder during the anodization of Ag foil in a HF-H2SO4 electrolyte. We propose that there are three competing reactions during the anodization process: (i) the production of Ag2O at the Ag foil anode surface from the presence of water in the electrolyte, (ii) the dissolution of the Ag2O in the presence of HF releasing Ag+ ions, (iii) the precipitation of Ag+ and SO42− ions, as Ag2SO4 on the Ag foil anode surface. This co-precipitation/dissolution process ultimately results in a mixed-grain powder. We then show that the Ag2O embedded within the mixed-grain is photo-decomposed to produce highly fluorescent silver nanoclusters (Agn) which decorate the Ag2SO4 crystals. The Ag2SO4 salt offers a stable matrix for the photo-decomposed Agn nanoclusters to emit their strong fluorescence.</description><identifier>ISSN: 0169-4332</identifier><identifier>EISSN: 1873-5584</identifier><identifier>DOI: 10.1016/j.apsusc.2012.12.097</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Anodes ; Anodic dissolution ; Anodizing ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Condensed matter: structure, mechanical and thermal properties ; Cross-disciplinary physics: materials science; rheology ; Decoration ; Dissolution ; Electrochemistry ; Electrolytes ; Exact sciences and technology ; Fluorescence ; Foils ; Nanostructure ; Physics ; Silver ; Silver nanoclusters ; Silver sulphate/silver oxide mixed-grain powder</subject><ispartof>Applied surface science, 2013-04, Vol.270, p.77-81</ispartof><rights>2013 Elsevier B.V.</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2145-35053953632cfae345eaa855c624d43fa61f116d57f0d6a9325695325dcc1c4b3</citedby><cites>FETCH-LOGICAL-c2145-35053953632cfae345eaa855c624d43fa61f116d57f0d6a9325695325dcc1c4b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.apsusc.2012.12.097$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27141129$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Fang, Cheng</creatorcontrib><creatorcontrib>Shapter, Joseph George</creatorcontrib><creatorcontrib>Voelcker, Nicolas Hans</creatorcontrib><creatorcontrib>Ellis, Amanda Vera</creatorcontrib><title>Ag2SO4 decorated with fluorescent Agn nanoclusters</title><title>Applied surface science</title><description>Microstructured fluorescent Ag2SO4 is synthesized via anodization of Ag foil in a HF-H2SO4 electrolyte. The residual Ag2O is embedded in the Ag2SO4 deposit and photo-decomposed to fluorescent nanoclusters (Agn). [Display omitted]
► Ag foil was anodized in a HF-H2SO4 electrolyte to produce an Ag2SO4/Ag2O mixed-grain powder. ► The photo-decomposed powder exhibited strong fluorescence. ► We proposed fluorescence arises from silver nanoclusters embedded with the Ag2SO4.
Here we report on the production of an Ag2SO4/Ag2O mixed-grain powder during the anodization of Ag foil in a HF-H2SO4 electrolyte. We propose that there are three competing reactions during the anodization process: (i) the production of Ag2O at the Ag foil anode surface from the presence of water in the electrolyte, (ii) the dissolution of the Ag2O in the presence of HF releasing Ag+ ions, (iii) the precipitation of Ag+ and SO42− ions, as Ag2SO4 on the Ag foil anode surface. This co-precipitation/dissolution process ultimately results in a mixed-grain powder. We then show that the Ag2O embedded within the mixed-grain is photo-decomposed to produce highly fluorescent silver nanoclusters (Agn) which decorate the Ag2SO4 crystals. The Ag2SO4 salt offers a stable matrix for the photo-decomposed Agn nanoclusters to emit their strong fluorescence.</description><subject>Anodes</subject><subject>Anodic dissolution</subject><subject>Anodizing</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Decoration</subject><subject>Dissolution</subject><subject>Electrochemistry</subject><subject>Electrolytes</subject><subject>Exact sciences and technology</subject><subject>Fluorescence</subject><subject>Foils</subject><subject>Nanostructure</subject><subject>Physics</subject><subject>Silver</subject><subject>Silver nanoclusters</subject><subject>Silver sulphate/silver oxide mixed-grain powder</subject><issn>0169-4332</issn><issn>1873-5584</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLxDAUhYMoOD7-gYtuBDetuXm13QjD4AsGZqGuQ0xuxwyddkxaxX9vhg4uhQN3cb9zH4eQK6AFUFC3m8Ls4hhtwSiwIonW5RGZQVXyXMpKHJNZwupccM5OyVmMG5rA1J0RNl-zl5XIHNo-mAFd9u2Hj6xpxz5gtNgN2XzdZZ3petuOccAQL8hJY9qIl4d6Tt4e7l8XT_ly9fi8mC9zy0DInEsqeS254sw2BrmQaEwlpVVMOMEbo6ABUE6WDXXK1JxJlXAmnbVgxTs_JzfT3F3oP0eMg976dFHbmg77MWpQlSyVApAJFRNqQx9jwEbvgt-a8KOB6n1EeqOniPQ-Ip2UIkq268MGE61pm2A66-Ofl5UgAFiduLuJw_Tul8ego_XYWXQ-oB206_3_i34B6S18Sw</recordid><startdate>20130401</startdate><enddate>20130401</enddate><creator>Fang, Cheng</creator><creator>Shapter, Joseph George</creator><creator>Voelcker, Nicolas Hans</creator><creator>Ellis, Amanda Vera</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20130401</creationdate><title>Ag2SO4 decorated with fluorescent Agn nanoclusters</title><author>Fang, Cheng ; Shapter, Joseph George ; Voelcker, Nicolas Hans ; Ellis, Amanda Vera</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2145-35053953632cfae345eaa855c624d43fa61f116d57f0d6a9325695325dcc1c4b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Anodes</topic><topic>Anodic dissolution</topic><topic>Anodizing</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Decoration</topic><topic>Dissolution</topic><topic>Electrochemistry</topic><topic>Electrolytes</topic><topic>Exact sciences and technology</topic><topic>Fluorescence</topic><topic>Foils</topic><topic>Nanostructure</topic><topic>Physics</topic><topic>Silver</topic><topic>Silver nanoclusters</topic><topic>Silver sulphate/silver oxide mixed-grain powder</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fang, Cheng</creatorcontrib><creatorcontrib>Shapter, Joseph George</creatorcontrib><creatorcontrib>Voelcker, Nicolas Hans</creatorcontrib><creatorcontrib>Ellis, Amanda Vera</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied surface science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fang, Cheng</au><au>Shapter, Joseph George</au><au>Voelcker, Nicolas Hans</au><au>Ellis, Amanda Vera</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ag2SO4 decorated with fluorescent Agn nanoclusters</atitle><jtitle>Applied surface science</jtitle><date>2013-04-01</date><risdate>2013</risdate><volume>270</volume><spage>77</spage><epage>81</epage><pages>77-81</pages><issn>0169-4332</issn><eissn>1873-5584</eissn><abstract>Microstructured fluorescent Ag2SO4 is synthesized via anodization of Ag foil in a HF-H2SO4 electrolyte. The residual Ag2O is embedded in the Ag2SO4 deposit and photo-decomposed to fluorescent nanoclusters (Agn). [Display omitted]
► Ag foil was anodized in a HF-H2SO4 electrolyte to produce an Ag2SO4/Ag2O mixed-grain powder. ► The photo-decomposed powder exhibited strong fluorescence. ► We proposed fluorescence arises from silver nanoclusters embedded with the Ag2SO4.
Here we report on the production of an Ag2SO4/Ag2O mixed-grain powder during the anodization of Ag foil in a HF-H2SO4 electrolyte. We propose that there are three competing reactions during the anodization process: (i) the production of Ag2O at the Ag foil anode surface from the presence of water in the electrolyte, (ii) the dissolution of the Ag2O in the presence of HF releasing Ag+ ions, (iii) the precipitation of Ag+ and SO42− ions, as Ag2SO4 on the Ag foil anode surface. This co-precipitation/dissolution process ultimately results in a mixed-grain powder. We then show that the Ag2O embedded within the mixed-grain is photo-decomposed to produce highly fluorescent silver nanoclusters (Agn) which decorate the Ag2SO4 crystals. The Ag2SO4 salt offers a stable matrix for the photo-decomposed Agn nanoclusters to emit their strong fluorescence.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.apsusc.2012.12.097</doi><tpages>5</tpages></addata></record> |
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| subjects | Anodes Anodic dissolution Anodizing Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Decoration Dissolution Electrochemistry Electrolytes Exact sciences and technology Fluorescence Foils Nanostructure Physics Silver Silver nanoclusters Silver sulphate/silver oxide mixed-grain powder |
| title | Ag2SO4 decorated with fluorescent Agn nanoclusters |
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