Low temperature solventless syntheses of nanocrystalline nickel sulfides with different sulfur sources

In this work, we have prepared new materials of the nickel sulfide thin films by using the spray pyrolysis technique for promising co-catalyst to improve the photocatalytic performance or superconductivity. The effect of deposition temperature (523, 573 and 623 K) on structural, optical and electrical properties was investigated. The XRD diffraction shows that the prepared nickel sulfide at 523, 573 and 623 K having an orthorhombic, hexagonal and hexagonal structure, which were Ni3S2, Ni17S18 and NiS2, respectively. The minimum value of crystallite size (45,9 nm) was measured of deposited film at 573K. The thin films prepared at 523 and 573 K have an average transmittance is about 20 %. The prepared Ni1S2 thin film at T=623 K has the lowest calculated optical band gap and Urbach energy. The Ni1S2 thin film also has the best calculated of the refractive index and the extinction coefficient. The FTIR spectrums of the nickel sulfide have various bands such as Ni-S, C-H, O-H, N–H and C-S. The maximum electrical conductivity is 4,29x105 (Ω.cm)−1 was obtained at 573K of the Ni17S18. The nickel sulfide thin films sprayed at 573K have good structural, optical and electrical properties.

show abstract

“…where k is the extinction coefficient. However, the refractive index was calculated by the following relation [40]:…”

Section: Optical Propertiesmentioning

confidence: 99%

Effect of Temperature on the Properties of Nickel Sulfide Films Performed by Spray Pyrolysis Technique

Gahtar

Benramache

Zaouche

et al. 2020

Advances in Materials Science

View full text Add to dashboard Cite

show abstract

“…Many other techniques to prepare nickel sulfides were reported later, including mechanochemical preparation [25], hydro/solvothermal methods [26, 27, 28], spray pyrolysis [12], decomposition of single-source precursors [13, 29], polyol synthesis [14], microwave synthesis [30] and preparation by the solventless route in air [31].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of nickel and cobalt sulfide nanoparticles using a low cost sonochemical method

Kristl

Dojer

Gyergyek

et al. 2017

Heliyon

View full text Add to dashboard Cite

Nickel and cobalt sulfides are promising materials in different cutting-edge research areas like solar cells, supercapacitors, catalysts, and electrode materials. Nickel and cobalt sulfides with various stoichiometries have been synthesized sonochemically from Ni(CH3COO)2 ∙ 4H2O, Co(CH3COO)2 ∙ 2H2O and different sulfur precursors using a direct immersion ultrasonic probe. The products were characterized by X-ray powder diffraction, transmission electron microscopy (TEM) including EDX analysis, IR and UV–Vis spectroscopy and elemental analysis. Following products have been obtained: NiS, Ni3S4, CoS1.097 and Co9S8, with average crystallite sizes in the range 7−30 nm. Effects of different reaction conditions on the size, morphology and optical band-gap energy were evaluated. Optical band-gap energies in the range 3.3 eV−3.8 eV were observed for the obtained nanoparticles.

show abstract

“…In contrast, TU is used as the sulfurizing agent for the h-NiS growth due to its gradual sulfur liberation [19].…”

Section: Seed Induced Synthesis Of H-nis Nanoparticles (Samples B1 Anmentioning

confidence: 99%

“…To achieve the aforementioned morphologies several synthesis methods have been employed, such as chemical vapor deposition [16], solvothermal [10,12], mechanical alloying [17], polyol method [18], solventless synthesis [19] and so on [20].…”

Section: Introductionmentioning

confidence: 99%

Seed-induced synthesis of h-NiS single-crystalline hexagonal nanoparticles

Semione

Schmachtenberg

Tontini

et al. 2016

Ceramics International

Self Cite

View full text Add to dashboard Cite

Low temperature solventless syntheses of nanocrystalline nickel sulfides with different sulfur sources

Cited by 19 publications

References 36 publications

Effect of Temperature on the Properties of Nickel Sulfide Films Performed by Spray Pyrolysis Technique

Effect of Temperature on the Properties of Nickel Sulfide Films Performed by Spray Pyrolysis Technique

Synthesis of nickel and cobalt sulfide nanoparticles using a low cost sonochemical method

Seed-induced synthesis of h-NiS single-crystalline hexagonal nanoparticles

Contact Info

Product

Resources

About