Synthesis, functionalization, and properties of intercalation compounds

Mirabal, N.; Lavayen, Vladimir; Benavente, E.; Ana, M. A. Santa; González, Guillermo

doi:10.1016/s0026-2692(03)00220-9

Cited by 20 publications

(5 citation statements)

References 14 publications

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“…The nature of the CdCl 2 crystal structure, in which bonding along the crystallographic c -axis is relatively weak, easily leads to mesostructured layered products in the presence of cationic surfactants [ 15 ]. This feature was exploited in this work using the layered CdCl 2 /cationic surfactant as a precursor of the corresponding mixed CdCl 2 /CdS derivatives by specifically direct exchange of chloride by sulphide atoms in a solid phase/gas reaction.…”

Section: Resultsmentioning

confidence: 99%

Semiconducting properties of layered cadmium sulphide-based hybrid nanocomposites

2011

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A series of hybrid cadmium salt/cationic surfactant layered nanocomposites containing different concentrations of cadmium sulphide was prepared by exchanging chloride by sulphide ions in the layered precursor CdXx(OH)y(CnTA)z in a solid phase/gas reaction, resulting in a series of layered species exhibiting stoichiometries corresponding to CdSvXx(OH)y(CnTA)z, constituted by two-dimensional CdCl2/CdS ultra-thin sheets sandwiched between two self-assembled surfactant layers. The electronic structure of CdS in the nanocomposite is similar to that of bulk, but showing the expected features of two-dimensional confinement of the semiconductor. The nanocomposite band gap is found to depend in a non-linear manner on both the length of the hydrocarbon chain of the surfactant and the concentration of the sulphide in the inorganic sheet. The products show photocatalytic activity at least similar and usually better than that of "bulk" CdS in a factor of two.

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Section: Resultsmentioning

confidence: 99%

Semiconducting properties of layered cadmium sulphide-based hybrid nanocomposites

2011

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“…Since the 1970s, lamellar disulfide has been intensively studied, especially via the intercalation technique [10-12]. During intercalation, the coordination patterns of lamellar disulfide change greatly, and numerous defects are introduced, which enable doping of other ions [13,14].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Cobalt-Doped WS2 Nanorods for Lithium Battery Applications

Wang

et al. 2010

Nanoscale Res Lett

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Cobalt-doped tungsten disulfide nanorods were synthesized by an approach involving exfoliation, intercalation, and the hydrothermal process, using commercial WS2 powder as the precursor and n-butyllithium as the exfoliating reagent. XRD results indicate that the crystal phase of the sample is 2H-WS2. TEM images show that the sample consists of bamboo-like nanorods with a diameter of around 20 nm and a length of about 200 nm. The Co-doped WS2 nanorods exhibit the reversible capacity of 568 mAh g−1 in a voltage range of 0.01–3.0 V versus Li/Li+. As an electrode material for the lithium battery, the Co-doped WS2 nanorods show enhanced charge capacity and cycling stability compared with the raw WS2 powder.

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“…Transition metal dihalogenides (MX 2 ) have layered crystal structures, which have attracted significant attention over recent years 5–9. Molybdenum disulfide (MoS 2 ) has great technological importance as catalysts (for the petrochemical hydrotreatment process), electrodes, solid‐state lubricants, and materials with unusual two‐dimensional magnetic properties 10.…”

Section: Introductionmentioning

confidence: 99%

Structural, thermal, and tribological properties of intercalated polyoxymethylene/molybdenum disulfide nanocomposites

Wang

et al. 2008

J of Applied Polymer Sci

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Intercalated polyoxymethylene (POM)/molybdenum disulfide (MoS 2 ) nanocomposites were prepared by in situ intercalation/polymerization. The structures of the composites were characterized by means of powder X-ray diffraction (XRD) and transmission electron microscopy. The XRD pattern showed that the polymer was inserted into the MoS 2 galleries. The interlayer spacing of the intercalated phase increased from 6.15 to 11.18 Å . The thermal behavior of the composites was also investigated through thermogravimetric analysis. The results show that the heat resistance of the intercalated composites decreased slightly. The tribological behavior of POM/MoS 2 was investigated on an MQ-800 end-face tirbometer under dry friction. The worn surfaces were observed by scanning electron microscopy. The results show that POM/MoS 2 presented better friction reduction and wear resistance, especially under high load. The friction mechanism of the nanocomposites is also discussed in association with X-ray photoelectron spectroscopy.

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Synthesis, functionalization, and properties of intercalation compounds

Cited by 20 publications

References 14 publications

Semiconducting properties of layered cadmium sulphide-based hybrid nanocomposites

Semiconducting properties of layered cadmium sulphide-based hybrid nanocomposites

Synthesis and Characterization of Cobalt-Doped WS2 Nanorods for Lithium Battery Applications

Structural, thermal, and tribological properties of intercalated polyoxymethylene/molybdenum disulfide nanocomposites

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