DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Sun Hwa | ko |
dc.contributor.author | Son, Jin Gyeong | ko |
dc.contributor.author | Lee, Tae Geol | ko |
dc.contributor.author | Kim, Jongwon | ko |
dc.contributor.author | Han, SY | ko |
dc.contributor.author | Park, Hyun Min | ko |
dc.contributor.author | Song, Jae Yong | ko |
dc.date.accessioned | 2015-11-20T09:08:54Z | - |
dc.date.available | 2015-11-20T09:08:54Z | - |
dc.date.created | 2015-02-09 | - |
dc.date.created | 2015-02-09 | - |
dc.date.issued | 2014-12 | - |
dc.identifier.citation | NANOSCALE RESEARCH LETTERS, v.9 | - |
dc.identifier.issn | 1556-276X | - |
dc.identifier.uri | http://hdl.handle.net/10203/201040 | - |
dc.description.abstract | We report a low-cost, facile, and template-free electrochemical method of synthesizing three-dimensional (3D) hollow metallic nanostructures. The 3D nanoporous gold (3D-NPG) nanostructures were synthesized by a galvanic replacement reaction (GRR) using the different reduction potentials of silver and gold; hemispherical silver nanoislands were electrochemically deposited on cathodic substrates by a reverse-pulse potentiodynamic method without templates and then nanoporous gold layer replicated the shape of silver islands during the GRR process in an ultra-dilute electrolyte of gold(III) chloride trihydrate. Finally, the wet etching process of remaining silver resulted in the formation of 3D-NPG. During the GRR process, the application of bias voltage to the cathode decreased the porosity of 3D-NPG in the voltage range of 0.2 to -0.62 V. And the GRR process of silver nanoislands was also applicable to fabrication of the 3D hollow nanostructures of platinum and palladium. The 3D-NPG nanostructures were found to effectively enhance the SERS sensitivity of rhodamine 6G (R6G) molecules with a concentration up to 10(-8) M. | - |
dc.language | English | - |
dc.publisher | SPRINGER | - |
dc.subject | RAMAN-SCATTERING | - |
dc.subject | MESOPOROUS MATERIALS | - |
dc.subject | FABRICATION | - |
dc.subject | EVOLUTION | - |
dc.subject | CATALYSIS | - |
dc.subject | GROWTH | - |
dc.subject | ARRAYS | - |
dc.subject | SIZE | - |
dc.subject | AU | - |
dc.subject | AG | - |
dc.title | Galvanic synthesis of three-dimensional and hollow metallic nanostructures | - |
dc.type | Article | - |
dc.identifier.wosid | 000347649400001 | - |
dc.identifier.scopusid | 2-s2.0-84928652248 | - |
dc.type.rims | ART | - |
dc.citation.volume | 9 | - |
dc.citation.publicationname | NANOSCALE RESEARCH LETTERS | - |
dc.identifier.doi | 10.1186/1556-276X-9-679 | - |
dc.contributor.nonIdAuthor | Park, Sun Hwa | - |
dc.contributor.nonIdAuthor | Lee, Tae Geol | - |
dc.contributor.nonIdAuthor | Kim, Jongwon | - |
dc.contributor.nonIdAuthor | Han, SY | - |
dc.contributor.nonIdAuthor | Park, Hyun Min | - |
dc.contributor.nonIdAuthor | Song, Jae Yong | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Nanoporous | - |
dc.subject.keywordAuthor | Gold | - |
dc.subject.keywordAuthor | Platinum | - |
dc.subject.keywordAuthor | Palladium | - |
dc.subject.keywordAuthor | Galvanic reaction | - |
dc.subject.keywordPlus | RAMAN-SCATTERING | - |
dc.subject.keywordPlus | MESOPOROUS MATERIALS | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | EVOLUTION | - |
dc.subject.keywordPlus | CATALYSIS | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | ARRAYS | - |
dc.subject.keywordPlus | SIZE | - |
dc.subject.keywordPlus | AU | - |
dc.subject.keywordPlus | AG | - |
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