Preparation and characterization of single-handed twisted platinum tubular nanoribbons

• Published in: Materials letters Vol. 133; pp. 147 - 150
• Main Authors: Cai, Hui, Wang, Chundong, Li, Baozong, Li, Yi, Yang, Yonggang
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.10.2014
• Subjects: Chiral Pt; Handedness; Nanoparticles; Nanostructure; Nanowires; Platinum; Scanning electron microscopy; Self assembly; Sol–gel preparation; Transmission electron microscopy; Nanoparticles; Sol–gel preparation; Chiral Pt
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2014.06.138

Single-handed twisted tubular Pt nanoribbons were prepared through sol–gel transcription, using self-assemblies of low-molecular weight amphiphiles as templates. The nanoribbons were characterized using field-emission scanning electron microscopy, transmission electron microscopy (TEM) and diffuse reflectance circular dichroism (DRCD). Nanoribbons handedness was controlled by that of the organic self-assembly. Nanoribbons were constructed from nanoparticles and short nanowires with diameters of 1.5–3.0nm. The TEM results indicated that these nanoparticles and short nanowires were randomly arranged; however, DRCD spectra indicated that the nanoribbons exhibited optical activity. Pt atoms were proposed to arrange in a chiral manner on the surfaces and in the cores. [Display omitted] •Single-handed twisted tubular Pt nanoribbons were prepared through sol–gel transcription.•Nanoribbons were constructed by randomly arranged nanoparticles and short nanowires.•Nanoribbons’ handedness was controlled by that of the organic self-assembly.