Structure refinement of stoichiometric TiS2

Chianelli, Russell R.; Scanlon, Joseph C.; Thompson, A. H.

doi:10.1016/0025-5408(75)90100-2

Cited by 118 publications

(65 citation statements)

References 7 publications

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“…7 in good agreement with parameters reported for bulk stoichiometric materials (a =3.407 Å and c = 5.695 Å). [25]. Furthermore, with an increase in temperature the flower-like structures become less uniform and well-defined until at 700 °C (8) they are lost completely in favour of larger scale platelet crystallites, each of the order of 5-10 μm across (Fig 4e).…”

Section: Resultsmentioning

confidence: 97%

Growth and characterisation of titanium sulphide nanostructures by surface-assisted vapour transport methods; from trisulphide ribbons to disulphide nanosheets

Denholme¹,

Dobson²,

Weaver³

et al. 2012

IJNT

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Surface Assisted Chemical Vapour Transport (SACVT) methods have beenemployed to grow nanostructures of titanium disulfide (TiS 2 ) and titanium trisulfide (TiS 3 ). SACVT reactions occur bewteen titanium and sulfur powders to form TiS x species transported in the vapour phase to grow nanometric flower-like structures on titaniumcoated silica substrates. The evolution of structure and composition has been followed by powder X-ray diffraction, electron microscopy and Raman spectroscopy. At 1:2 Ti:S ratios, the size and shape of the hexagonal 1T-TiS 2 titanium disulfide structures formed can be varied from flower-like growths with "petals" formed from nanosheets 10 nm thick to platelets microns across. Increasing the proportions of sulfur (Ti:S 1:4) enables TiS 3 flower-like structures composed of radiating nanoribbons to grow at elevated temperatures without decomposition to TiS 2 . TEM/SAED suggests that individual trisulfide ribbons grow along the [010] direction. Magnetic properties of the disulfide nanomaterials have been determined using SQUID magnetometry and Raman spectra for disulfides suggest that their crystal and electronic structures may be more complex than expected for bulk, stoichiometric, CdI 2 -structured TiS 2 .Keywords: Titanium, sulfur, synthesis, growth, vapour transport, electron microscopy , structure, Raman spectroscopy, magnetism

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Section: Resultsmentioning

confidence: 97%

Growth and characterisation of titanium sulphide nanostructures by surface-assisted vapour transport methods; from trisulphide ribbons to disulphide nanosheets

Denholme¹,

Dobson²,

Weaver³

et al. 2012

IJNT

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“…We first examined the group IV TiS 2 colloidal nanostructure (60 nm in diameter with a dozen layers) with an interlayer distance of 5.7 Å and with each single-layer TiS 2 comprising a S-Ti-S tri-atomic plate of 1T-type CdI 2 structure 29 (Fig. 2a).…”

Section: Resultsmentioning

confidence: 99%

“…The intercalation and gap-widening capability of Lewis base molecular intercalates were investigated depending on the alkyl chain length of primary amines such as propyl-, butyl-and hexyl-amine ( Fig. 2b) 29,30 . Here, an excess amount of intercalate is added to TiS 2 nanoparticle in dimethyl sulphoxide (DMSO) at room temperature, and the reaction mixture is stirred for 30 min to 5 h depending on the chain length of the intercalate molecules.…”

Section: Resultsmentioning

confidence: 99%

Tandem intercalation strategy for single-layer nanosheets as an effective alternative to conventional exfoliation processes

et al. 2015

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Simple and effective generation of transition metal chalcogenides (TMCs) in a single-layer form has been a challenging task. Here we present a tandem molecular intercalation (TMI) as a new exfoliation concept for producing single-layer TMCs from multi-layer colloidal TMC nanostructures in solution phase. TMI requires tandem Lewis base intercalates, where short 'initiator' molecules first intercalate into TMCs to open up the interlayer gap, and the long 'primary' molecules then bring the gap to full width so that a random mixture of intercalates overcomes the interlayer force. Spontaneous exfoliation then yields single-layer TMCs. The TMI process is uniquely advantageous because it works in a simple one-step process under safe and mild conditions (that is, room temperature without sonication or H 2 generation). With the appropriate intercalates, we have successfully generated single-layer nanostructures of group IV (TiS 2 , ZrS 2 ), group V (NbS 2 ) and VI (WSe 2 , MoS 2 ) TMCs.

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“…This clearly suggests that the vibration of the silver atom at the average lattice site in the intercalated plane is large and indicates both weak bonding and correspondingly rapid planar diffusion as well as possibly large static displacements of Ag from the average lattice sites as defined by the lattice parameter. The temperature parameters for pure TiS2 are compared in Table 1 (Chianelli, Scanlon & Thompson, 1975). There are not large differences between Bri and B s in pure TiS2 or disordered stage-2 Ag0.18TiS2.…”

Section: Crystallographic Parameters Of the Basal (Ab) Planementioning

confidence: 99%

“…The e* direction is perpendicular to this figure. The Ewald sphere (1/2 = 1.407 A -1) has barely been intersected at 20.1, 02.1 The temperature parameters for pure TiS 2 were determined by Chianelli, Scanlon & Thompson (1975).…”

Section: Diffuse Scattering From Silver Atoms In the Basal Planementioning

confidence: 99%

X-ray diffraction study of basal-(ab)-plane structure and diffuse scattering from silver atoms in disordered stage-2 Ag₀.₁₈TiS₂

Ohshima¹,

Moss²

1983

Acta Cryst Sect A

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X-ray results are presented on the crystallographic parameters in the basal (ab) plane and the shortrange-order diffuse scattering from intercalated silver atoms in disordered stage-2 Ag0.18TiS 2 at room temperature. The silver atoms in the intercalated plane occupy the octahedral sites and the in-plane temperature parameter of the silver atoms has a value of B = 3.0 + 0.1 A 2, suggesting both weak bonding and correspondingly rapid diffusion. Rodlike diffuse scattering paraUel to e* at ~z}.0, 22 ~.0 and their equivalent positions is observed and reveals the two-dimensional (2D) feature of the disordered state. From analyzing this 2D diffuse intensity by the method of Borie & Sparks [Acta Cryst. (1971), A27, 198-201], the planar short-range-order parameters were determined. A comparison of this planar short-range order with the 2D Ornstein-Zernike correlation function demonstrates the long-range nature of the 2D short-range order with a correlation range x -1 of 4.88 +_ 0.4/k. Using a linearized mean-field approximation for the correlation functions of a binary Ising system well above T c developed by Clapp & Moss [Phys. Rev. (1966), 142, 418-427], a set of oscillatory atomic-pair interaction potential ratios was obtained where the direct interactions were significant out to at least four to five neighbors.

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Structure refinement of stoichiometric TiS2

Cited by 118 publications

References 7 publications

Growth and characterisation of titanium sulphide nanostructures by surface-assisted vapour transport methods; from trisulphide ribbons to disulphide nanosheets

Growth and characterisation of titanium sulphide nanostructures by surface-assisted vapour transport methods; from trisulphide ribbons to disulphide nanosheets

Tandem intercalation strategy for single-layer nanosheets as an effective alternative to conventional exfoliation processes

X-ray diffraction study of basal-(ab)-plane structure and diffuse scattering from silver atoms in disordered stage-2 Ag₀.₁₈TiS₂

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Structure refinement of stoichiometric TiS2

Cited by 118 publications

References 7 publications

Growth and characterisation of titanium sulphide nanostructures by surface-assisted vapour transport methods; from trisulphide ribbons to disulphide nanosheets

Growth and characterisation of titanium sulphide nanostructures by surface-assisted vapour transport methods; from trisulphide ribbons to disulphide nanosheets

Tandem intercalation strategy for single-layer nanosheets as an effective alternative to conventional exfoliation processes

X-ray diffraction study of basal-(ab)-plane structure and diffuse scattering from silver atoms in disordered stage-2 Ag0.18TiS2

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X-ray diffraction study of basal-(ab)-plane structure and diffuse scattering from silver atoms in disordered stage-2 Ag₀.₁₈TiS₂