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Snapshots of the Formation of Inorganic MoS2 Onion-Type Fullerenes: A “Shrinking Giant Bubble” Pathway


  • This work was supported by the Deutsche Forschungsgemeinschaft (DFG) within the priority program 1165 “Nanotubes and Nanowires: From Controlled Synthesis to Function”. A.Y. is a recipient of a fellowship from POLYMAT, the Graduate School of Excellence of the State of Rhineland-Palatinate. We acknowledge the help of Dr. Enrico Mugnaioli with the EDX analysis and G. Glaßer with the SEM as well as support from the Materials Science Center (MWFZ) in Mainz.


original image

Growing onions: Formation of onion-type MoS2 fullerenes was monitored by taking TEM snapshots of reaction intermediates in the thermal decomposition of amorphous precursor particles, which led first to giant multiwall fullerenes (d>150 nm) in which, at higher temperature, smaller daughter fullerenes segregated (see TEM image). Subsequently, tubular nanopods, containing fullerene particles and finally twinned and nested fullerenes, were formed.

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