Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 447, Issue -, Pages 29-34Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnoncrysol.2016.05.033
Keywords
Amorphous materials; Nanostructured materials; Chemical synthesis; Rhenium disulfide; Hydrothermal synthesis
Funding
- FONDECYT [1131112]
- CONICYT [FB0807, 174689, 155388, 21120311, 259931]
- PAPIIT [IN104714-3]
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In the current study, a new approach to the synthesis of highly destacked ReS2 layers embedded in amorphous carbon via the thermal decomposition of a tetraoctylammonium perrhenate precursor, under sulfidizing atmosphere (15% v/v H2S mixture H2S/H-2 gas), is described. X-ray diffraction, scanning electron microscopy, scanning transmission electron microscopy, energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy analysis of the thermolysis product confirm the formation of rhenium disulfide. The synthesized compound is found as single layers with a minor proportion of few-layer arrangements, embedded in amorphous carbon. Xray diffraction, UV-visible diffuse reflectance, and thermogravimetry analysis were made in order to characterize the metal-organic salt precursor, showing that the perrhenate ions are dispersed widely from each other in the matrix of the organic cations, forming an inorganic-organic salt. The special arrangement of these ReS2 layers has a potential use as a heterogeneous catalyst due to the high proportion of edge sites. (C) 2016 Elsevier B.V. All rights reserved.
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