title: Octahedral and Cubic Gold Nanoframes with Platinum Framework.
abstract: Herein, we report a general synthetic pathway to various shapes of three-dimensional (3D) gold nanoframes (NFs) embedded with a Pt skeleton for structural rigidity. The synthetic route comprises three steps: site-specific (edge and vertex) deposition of Pt, etching of inner Au, and regrowth of Au on the Pt framework. Site-specific reduction of Pt on Au nanoparticles (NPs) led to the high-quality of 3D Au NFs with good structural rigidity, which allowed the detailed characterization of the corresponding 3D metal NFs. The synthetic method described here will open new avenues toward many new kinds of 3D metal NFs.
authors.affiliation: Department of Chemistry, Sungkyunkwan University, Suwon 440-746 (South Korea).
authors.forename: Songyi
authors.initials: S
authors.lastname: Ham
authors.affiliation: Department of Chemistry, Sungkyunkwan University, Suwon 440-746 (South Korea).
authors.forename: Hee-Jeong
authors.initials: HJ
authors.lastname: Jang
authors.affiliation: Department of Chemistry, Sungkyunkwan University, Suwon 440-746 (South Korea).
authors.forename: Yookyung
authors.initials: Y
authors.lastname: Song
authors.affiliation: Department of Chemistry and Biochemistry, Baylor University, Waco, TX, 76798 (USA). kevin_shuford@baylor.edu.
authors.forename: Kevin L
authors.initials: KL
authors.lastname: Shuford
authors.affiliation: Department of Chemistry, Sungkyunkwan University, Suwon 440-746 (South Korea). spark72@skku.edu.
authors.forename: Sungho
authors.initials: S
authors.lastname: Park
keywords: gold; nanoframes; nanoparticles; platinum; surface plasmon resonance