DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, Seonjin | ko |
dc.contributor.author | Kim, Min Soo | ko |
dc.contributor.author | Lee, Seo-Jin | ko |
dc.contributor.author | Kim, Bumjoon J. | ko |
dc.contributor.author | Kim, Il-Doo | ko |
dc.date.accessioned | 2015-03-27T08:04:10Z | - |
dc.date.available | 2015-03-27T08:04:10Z | - |
dc.date.created | 2014-10-06 | - |
dc.date.created | 2014-10-06 | - |
dc.date.issued | 2014-09 | - |
dc.identifier.citation | NANOSCALE, v.6, no.20, pp.11898 - 11903 | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | http://hdl.handle.net/10203/194537 | - |
dc.description.abstract | Hollow SnO2 spheres functionalized by Au catalysts were synthesized via the use of Au-decorated block copolymer (Au-BCP) sphere templates. Uniformly distributed Au nanoparticles on BCP spheres were prepared by the infiltration of Au precursors into polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) spheres. A thin SnO2 layer was coated on the Au-BCP spheres using RF sputtering at room temperature without morphological deformation of the spheres. The Au nanoparticles were uniformly transferred from the Au-BCP spheres to the inner shells of the hollow SnO2 spheres followed by decomposition of BCP spheres. The Au-loaded hollow SnO2 spheres exhibited a superior H2S sensitivity (R-air/R-gas = 17.4 at 5 ppm) with remarkably selective characteristics with a minor response (R-air/R-gas < 2.5 at 5 ppm) toward other interfering gases. Our results pave the way for a new catalyst loading method using Au-BCP spheres for the uniformly distributed Au NPs on the SnO2 layers. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | SEMICONDUCTOR GAS SENSORS | - |
dc.subject | EXHALED-BREATH | - |
dc.subject | GOLD NANOPARTICLES | - |
dc.subject | ACETONE | - |
dc.subject | DIAGNOSIS | - |
dc.subject | NANOSTRUCTURES | - |
dc.subject | PERFORMANCE | - |
dc.subject | MICROSPHERES | - |
dc.subject | HEMISPHERES | - |
dc.subject | NANOFIBERS | - |
dc.title | Facile Au catalyst loading on the inner shell of hollow SnO2 spheres using Au-decorated block copolymer sphere templates and their selective H2S sensing characteristics | - |
dc.type | Article | - |
dc.identifier.wosid | 000343000800039 | - |
dc.identifier.scopusid | 2-s2.0-84907495016 | - |
dc.type.rims | ART | - |
dc.citation.volume | 6 | - |
dc.citation.issue | 20 | - |
dc.citation.beginningpage | 11898 | - |
dc.citation.endingpage | 11903 | - |
dc.citation.publicationname | NANOSCALE | - |
dc.identifier.doi | 10.1039/c4nr03706e | - |
dc.contributor.localauthor | Kim, Bumjoon J. | - |
dc.contributor.localauthor | Kim, Il-Doo | - |
dc.contributor.nonIdAuthor | Lee, Seo-Jin | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | SEMICONDUCTOR GAS SENSORS | - |
dc.subject.keywordPlus | EXHALED-BREATH | - |
dc.subject.keywordPlus | GOLD NANOPARTICLES | - |
dc.subject.keywordPlus | ACETONE | - |
dc.subject.keywordPlus | DIAGNOSIS | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | MICROSPHERES | - |
dc.subject.keywordPlus | HEMISPHERES | - |
dc.subject.keywordPlus | NANOFIBERS | - |
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