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

Authors


  • 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.

Abstract

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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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