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Issue 4, 2008
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Singular MoS2, SiO2 and Si nanostructures—synthesis by solar ablation

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Abstract

Solar ablation creates the sharp radiative and temperature gradients, as well as the high-temperature annealing environment, that favor nanomaterial syntheses. Using highly concentrated sunlight, we generated fullerene-like MoS2, ranging from single-walled nanotubes and closed-cage structures to their larger multi-walled counterparts. TEM, HRTEM and EDS unambiguously established the nanostructures, some achieving fundamentally minimum sizes predicted by molecular structural theory. Irradiation of MoS2 and powdered mixtures of MoS2 + SiO2 in evacuated quartz ampoules also generated nanofibers and nanospheres of amorphous SiO2: the first production of SiO2nanostructures purely from quartz. Also, solar ablation of MoS2 + SiO mixtures produced nanowires and nanospheres of crystalline Si.

Graphical abstract: Singular MoS2, SiO2 and Si nanostructures—synthesis by solar ablation

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Publication details

The article was received on 12 Sep 2007, accepted on 20 Nov 2007 and first published on 29 Nov 2007


Article type: Paper
DOI: 10.1039/B714108D
Citation: J. Mater. Chem., 2008,18, 458-462
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    Singular MoS2, SiO2 and Si nanostructures—synthesis by solar ablation

    J. M. Gordon, E. A. Katz, D. Feuermann, A. Albu-Yaron, M. Levy and R. Tenne, J. Mater. Chem., 2008, 18, 458
    DOI: 10.1039/B714108D

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