Preparation and characterization of single-handed twisted platinum tubular nanoribbons

• 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.

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 1.5–3.0 nm. 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.

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