X-ray diffraction and X-ray photoelectron spectroscopy characterization of sulfurized tin thin films deposited by thermal evaporation

Oomae, Hiroto; Eguchi, Takahito; Tanaka, Kunihiko; Yamane, Masayuki; Ohtsu, Naofumi

doi:10.1016/j.tsf.2017.11.019

Cited by 4 publications

(1 citation statement)

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“…23,24 The peak located at 162.8 eV could be assigned to the binding energies of the S 2− of SnS ( Figure 2C). 25,26 Further FTIR analysis were pursued in order to demonstrate that the tin and sulfur are transformed into SnS phase. Figure 2D shows the FTIR spectra of tin powder, sulfur powder, SnS 2 hours and SnS 20 hours samples that are different from each other resulting their characteristic peaks.…”

Section: Resultsmentioning

confidence: 99%

Mechanochemical synthesis of SnS anodes for sodium ion batteries

Doğrusöz

Demir‐Cakan

2020

Int J Energy Res

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Orthorombic tin (II) sulfide are synthesized by a simple and cost effective mechanochemical method in a high energy ball mill over different time scales. After the detailed characterization by X-ray photoelectron spectroscopy (XPS), X-ray diffraction, Fourier Transform Infrared (FTIR) spectroscopy, thermogravimetricanalysis (TGA), scanning electron microscopy (SEM) and EDX mapping, 2 hours milling time is found to be the optimum as anode in sodium-ion batteries. Later, electrochemical performances are investigated with regards to the binder type; sodium carboxy methyl cellulose (CMC), sodium alginic acid (Na-alginate) and polyvinylidene fluoride (PVdF), in which the best performances are obtained with Na-alginate. Comprehensive electrochemical impedance spectroscopy (EIS) measurements are pursued in order to examine the effect of binders. EIS tests of SnS anodes after Crate test reveal much bigger resistivity with PVdF binder than that of CMC and Na-alginate. Postmortem surface morphology analysis by means of SEMdemonstrates the self-healing properties of Na-alginate binder with no visible crack formation after cycles. As a whole, more than 300 mAh/g capacity is obtained over 60 cycle at C/5 current density without the help of carbon addition during the synthesis of the SnS composite.

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