3 years ago

Surfactant-free Fabrication of Fullerene C60 Nanotubules Under Shear

Surfactant-free Fabrication of Fullerene C60 Nanotubules Under Shear
Tomonobu Nakayama, Jin Zou, Colin L. Raston, Zhi Zhang, Rekha Goswami Shrestha, Kasturi Vimalanathan
A method for controlling the self-assembly of fullerene C60 molecules into nanotubules in the fcc phase, devoid of entrapped solvent, has been established in a thin film microfluidic device. The micron length C60 nanotubules, with individual hollow diameters of 100 to 400 nm, are formed under continuous flow processing during high shear micromixing of water and a toluene solution of the fullerene, in the absence of surfactant, and without the need for further down-stream processing. TEM revealed pores on the surface of the nanotubes, and the isolated material has a much higher response to small molecule sensing than that for analogous material formed using multistep batch processing. Riding the vortex: Shear stress in a vortex fluidic device (VFD) effectively controls self-assembly of C60 molecules into nanotubules in the absence of stabilizing agents. Nanotubules were grown in the fcc phase with uniform pores on their surfaces. The material presented an amplified response to small molecule sensing.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201608673

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