Optimization of glass properties by substituting AgI with Ag2S in chalcogenide system

Ma, Baochen; Jiao, Qing; Zhang, Yeting; Sun, Xing; Yin, Guoliang; Zhang, Xianghua; Ma, Hongli; Liu, Xueyun; Dai, Shixun

doi:10.1016/j.ceramint.2019.07.305

Cited by 16 publications

(4 citation statements)

References 22 publications

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“…With the increase in temperature, the migration barrier of ions decreased, thus remarkably decreasing the impedance value of the sample. Therefore, the activation energy of electrolyte samples can be calculated using the following formula:

\begin{equation}\sigma {\rm{\;}} = {\sigma _{\rm{o}}}\;\;{{\rm{e}}^{ - \left( {{E_{\rm{a}}}/{k_{\rm{B}}}T} \right)}}\end{equation}

where σ is the total conductivity, σ o expresses the pre‐exponential parameter, E a and k B are the activation energy and the Boltzmann constant, respectively, and T represents the absolute temperature 31 . Figure 6C intuitively displays the variation of the ionic conductivity (left y ‐axis) at ambient temperature and E a (right y ‐axis) versus different annealing temperatures.…”

Section: Resultsmentioning

confidence: 99%

“…where 𝜎 is the total conductivity, 𝜎 o expresses the preexponential parameter, 𝐸 a and 𝑘 B are the activation energy and the Boltzmann constant, respectively, and 𝑇 represents the absolute temperature. 31 Figure 6C intuitively displays the variation of the ionic conductivity (left y-axis) at ambient temperature and 𝐸 a (right y-axis) versus different annealing temperatures. Notably, the W280 electrolyte presented the lowest conductivity of 0.37 mS cm −1 and the highest 𝐸 a of 0.65 eV.…”

Section: Resultsmentioning

confidence: 99%

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Preparation and characterization of 2Na₃SbS₄·Na₂WS₄ and 2Na₃SbS₄·Na₄XS₄ (X = Si, Ge, Sn) glass–ceramic electrolytes

et al. 2023

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Solid Na‐ion‐conducting sulfides exhibited potential applications for commercial solid‐state rechargeable batteries because of their low cost and good contact with the electrode. In the present work, a sulfide sodium‐ion conductor 2Na3SbS4·Na2WS4 with a conductivity of 1.55 mS cm−1 was obtained, which was identified as superior to the 2Na3SbS4·Na4XS4 (X = Si, Ge, Sn) systems. Further exploration of the heat treatment to improve the crystallinity of the glass resulted in a high conductivity of 1.9 mS cm−1 and low activation energy of 0.24 eV for the 2Na3SbS4·Na2WS4 glass–ceramic electrolyte. The high crystallinity after heat treatment at 380°C facilitated the migration of Na+ together with large sodium vacancies formed by doping with W6+ in 2Na3SbS4·Na2WS4 glass–ceramic electrolyte, resulting in the improved electrochemical performance. In addition, the air stability of the 2Na3SbS4·Na2WS4 glass–ceramic electrolyte decreased monotonically with increase of the annealing temperature, and heat application at 380°C effectively improved the electrolyte tolerance to the air compared with pure Na3PS4 electrolyte. The origins of aliovalent ion doping and thermal effect on the electrochemical performance were discussed in detail.

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\begin{equation}\sigma {\rm{\;}} = {\sigma _{\rm{o}}}\;\;{{\rm{e}}^{ - \left( {{E_{\rm{a}}}/{k_{\rm{B}}}T} \right)}}\end{equation}

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Preparation and characterization of 2Na₃SbS₄·Na₂WS₄ and 2Na₃SbS₄·Na₄XS₄ (X = Si, Ge, Sn) glass–ceramic electrolytes

et al. 2023

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“…In addition, the Raman peaks located at 165 cm −1 was vanished, which might belong to [SbI 3 ] units or Sb-I bonds. [15,40] In a word, the introduction of iodine with a suitable content (30 mol%-40 mol%) could transform the [SbS 3 ] pyramids into [SbSI] units, improving the glass-forming ability of Sb 2 S 3 -CuI.…”

Section: Resultsmentioning

confidence: 99%

Glass formation and physical properties of Sb₂S₃–CuI chalcogenide system*

Ye¹,

Chen²,

Lin³

2021

Chinese Phys. B

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Novel chalcogenide glasses of pseudo-binary (100 – x)Sb2S3–xCuI systems were synthesized by traditional melt-quenching method. The glass-forming region of Sb2S3-CuI system was determined ranging from x = 30 mol% to 40 mol%. CuI acts as a non-bridging modifier to form appropriate amount of [SbSI] structural units for improving the glass-forming ability of Sb2S3. Particularly, as-prepared glassy sample is able to transmit light beyond 14 μm, which is the wider transparency region than most sulfide glasses. Their physical properties, including Vickers hardness (H v), density (ρ), and ionic conductivity (σ) were characterized and analyzed with the compositional-dependent Raman spectra. These experimental results would provide useful knowledge for the development of novel multi-spectral optical materials and glassy electrolytes.

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“…Density improved when the concentration of Ag 2 S was increased. The fluctuation observed with addition of AgI could be ascribed to the higher atomic mass of Ag 2 S compared with that of AgI [12]. Microhardness is usually related to the degree of network connectivity.…”

Section: Xrd Analysismentioning

confidence: 99%

Physical and electrochemical behaviors of AgX (X = S/I) in a GeS2–Sb2S3 chalcogenide-glass matrix

Jiao

Zhang

et al. 2020

Ceramics International

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Ion-conducting chalcogenide glasses of a AgX (X = S/I)-modified GeSbS system were triumphantly synthesized through the conventional techniques of melt quenching. The evolution of the physical and structural natures of these samples were examined through density and microhardness tests, DSC, and Raman scattering spectroscopy. The electric features of the bulk samples were studied by means of impedance spectroscopy. Room-temperature ionic conductivity dramatically increased by six orders of magnitude from 7.68 × 10-10 to 3.54 × 10-4 S/cm with increasing Ag + content. The blocking effect, a novel phenomenon caused by the presence of a small amount of I ions in the glass system, was also observed, and its corresponding mechanism was proposed. The blocking effect hindered a portion of the mobile carriers in the network. Another phenomenon, i.e., the saturation of Ag ions, resulted in a slow increase in ionic conductivity at high Ag + dopant concentrations. These results provide novel insights into structural evolution and electrochemical properties of metal-doped solid electrolytes.

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Optimization of glass properties by substituting AgI with Ag2S in chalcogenide system

Cited by 16 publications

References 22 publications

Preparation and characterization of 2Na₃SbS₄·Na₂WS₄ and 2Na₃SbS₄·Na₄XS₄ (X = Si, Ge, Sn) glass–ceramic electrolytes

Preparation and characterization of 2Na₃SbS₄·Na₂WS₄ and 2Na₃SbS₄·Na₄XS₄ (X = Si, Ge, Sn) glass–ceramic electrolytes

Glass formation and physical properties of Sb₂S₃–CuI chalcogenide system*

Physical and electrochemical behaviors of AgX (X = S/I) in a GeS2–Sb2S3 chalcogenide-glass matrix

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Optimization of glass properties by substituting AgI with Ag2S in chalcogenide system

Cited by 16 publications

References 22 publications

Preparation and characterization of 2Na3SbS4·Na2WS4 and 2Na3SbS4·Na4XS4 (X = Si, Ge, Sn) glass–ceramic electrolytes

Preparation and characterization of 2Na3SbS4·Na2WS4 and 2Na3SbS4·Na4XS4 (X = Si, Ge, Sn) glass–ceramic electrolytes

Glass formation and physical properties of Sb2S3–CuI chalcogenide system*

Physical and electrochemical behaviors of AgX (X = S/I) in a GeS2–Sb2S3 chalcogenide-glass matrix

Contact Info

Product

Resources

About

Preparation and characterization of 2Na₃SbS₄·Na₂WS₄ and 2Na₃SbS₄·Na₄XS₄ (X = Si, Ge, Sn) glass–ceramic electrolytes

Preparation and characterization of 2Na₃SbS₄·Na₂WS₄ and 2Na₃SbS₄·Na₄XS₄ (X = Si, Ge, Sn) glass–ceramic electrolytes

Glass formation and physical properties of Sb₂S₃–CuI chalcogenide system*