알림마당

공지사항

뉴스/홍보

포토앨범

최신연구결과

세미나

취업/진학정보

클럽/동호회

논문명 Fabrication of 2D Au Nanorings with Pt Framework
저널명 J. Am. Chem. Soc., 2014, 136 (50), 17674–17680
교수명 Hee-Jeong Jang, Sungho Park* 업로드날짜 2015-10-15 12:25:41
이미지파일 Fabrication of 2D Au Nanorings with Pt Framework.JPG


Surface plasmonics of nanomaterials has been one of the main research themes in nanoscience. Spherical and elongated nanoparticles show their corresponding unique optical features mainly depending on the physical dimensions. Here we successfully synthesized Au nanorings having Pt framework (Pt@Au nanorings) with high uniformity through wet-chemistry. The synthetic strategy consisted of serial reactions involving site-selective growth of Pt on the rim of Au nanoplates, subsequent etching of Au nanoplates, followed by regrowth of Au on the Pt rim. In this synthetic method, Au3+ ions exhibited dual functionality as an etchant and a metal precursor. The resultant product, Pt@Au nanorings, exhibited unique localized surface plasmon resonance (LSPR) bands originating from the Au shell. The inner Pt skeleton turns out to be important to hold structural stability.


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