1. “Non-hydrolytic” sol–gel synthesis of molybdenum sulfides.
- Author
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Leidich, Saskia, Buechele, Dominique, Lauenstein, Raphael, Kluenker, Martin, and Lind, Cora
- Subjects
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MOLYBDENUM sulfides , *SOL-gel processes , *CHEMICAL synthesis , *HEAT treatment , *CHEMICAL reactions , *AGGLOMERATES (Chemistry) - Abstract
Non-hydrolytic sol–gel reactions provide a low temperature solution based synthetic approach to solid-state materials. In this paper, reactions between molybdenum chloride and hexamethyldisilthiane in chloroform were explored, which gave access to both MoS 2 and Mo 2 S 3 after heat treatment of as-recovered amorphous samples to 600–1000 °C. Interesting morphologies were obtained for MoS 2 , ranging from fused spherical particles to well-defined nanoplatelets and nanoflakes. Both 2H- and 3R-MoS 2 were observed, which formed thin hexagonal and triangular platelets, respectively. The platelets exhibited thicknesses of 10–30 nm, which corresponds to 15–50 MoS 2 layers. No attempts to prevent agglomeration were made, however, well separated platelets were observed for many samples. Heating at 1000 °C led to formation of Mo 2 S 3 for samples that showed well-defined MoS 2 at lower temperatures, while less crystalline samples had a tendency to retain the MoS 2 structure. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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