A Novel Method for the Synthesis of Tin(II) Sulphide Using Tin(II) Sulphate Precursor via H 2 -Mediated Ultrasonic Spray Pyrolysis.
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| Title: | A Novel Method for the Synthesis of Tin(II) Sulphide Using Tin(II) Sulphate Precursor via H 2 -Mediated Ultrasonic Spray Pyrolysis. |
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| Authors: | Chung, Hanwen1 (AUTHOR) bfriedrich@ime-aachen.de, Stopic, Srecko1 (AUTHOR) hchung@ime-aachen.de, Friedrich, Bernd1 (AUTHOR) |
| Source: | Materials (1996-1944). Dec2025, Vol. 18 Issue 24, p5497. 17p. |
| Subjects: | Tin, Production methods, Sonication, Phase transitions, Thermodynamics, Hydrogenation, Materials analysis, Manganous sulfate |
| Abstract: | Highlights: What are the main findings? SnS successfully synthesised via ultrasonic spray pyrolysis and H2 reduction. Unique synthesising method that is not replicable via simple solid-gas reaction. Thermochemical calculations of the hydrogen reduction of SnSO4. SnSO4 precursor enables clean, single-step conversion without substrate deposition. XRD confirmed SnS formation with minor SnO2 under 600–800 °C conditions. What are the implications of the main findings? Demonstrates novel powder synthesis for SnS materials. Offers alternatives to conventional thin-film deposition routes. Provides insight into phase evolution during SnSO4-H2 reduction. Simplicity and controllable conversion route. This study presents a novel approach for the synthesis of tin(II) sulphide (SnS) by integrating ultrasonic spray pyrolysis (USP) with hydrogen reduction (HR), using tin(II) sulphate (SnSO4) as a precursor. The method combines aerosol droplet generation using ultrasonic atomisation at 1.7 MHz with gas-phase reduction in a tube reactor under H2-N2 mixed gas flow. Thermochemical assessment indicated that SnS formation is thermodynamically favourable from 400 to 1000 °C, in reasonable agreement with experimental results. XRD analysis confirmed the formation of SnS as the main phase accompanied by SnO2 as a secondary product without SnSO4 when conducting USP-HR at 1000 °C. SEM images revealed flake-like, spherical, and agglomerated morphologies, with EDS confirming distinct Sn-S regions. This study demonstrates the feasibility of producing SnS powder using a simple precursor system and a clean reducing environment. The process offers a scalable and controllable synthesis route for SnS materials, providing an alternative to conventional substrate-based deposition techniques. Further optimisation of reaction temperature and residence time is expected to enhance phase purity and reduce agglomeration. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | Highlights: What are the main findings? SnS successfully synthesised via ultrasonic spray pyrolysis and H2 reduction. Unique synthesising method that is not replicable via simple solid-gas reaction. Thermochemical calculations of the hydrogen reduction of SnSO4. SnSO4 precursor enables clean, single-step conversion without substrate deposition. XRD confirmed SnS formation with minor SnO2 under 600–800 °C conditions. What are the implications of the main findings? Demonstrates novel powder synthesis for SnS materials. Offers alternatives to conventional thin-film deposition routes. Provides insight into phase evolution during SnSO4-H2 reduction. Simplicity and controllable conversion route. This study presents a novel approach for the synthesis of tin(II) sulphide (SnS) by integrating ultrasonic spray pyrolysis (USP) with hydrogen reduction (HR), using tin(II) sulphate (SnSO4) as a precursor. The method combines aerosol droplet generation using ultrasonic atomisation at 1.7 MHz with gas-phase reduction in a tube reactor under H2-N2 mixed gas flow. Thermochemical assessment indicated that SnS formation is thermodynamically favourable from 400 to 1000 °C, in reasonable agreement with experimental results. XRD analysis confirmed the formation of SnS as the main phase accompanied by SnO2 as a secondary product without SnSO4 when conducting USP-HR at 1000 °C. SEM images revealed flake-like, spherical, and agglomerated morphologies, with EDS confirming distinct Sn-S regions. This study demonstrates the feasibility of producing SnS powder using a simple precursor system and a clean reducing environment. The process offers a scalable and controllable synthesis route for SnS materials, providing an alternative to conventional substrate-based deposition techniques. Further optimisation of reaction temperature and residence time is expected to enhance phase purity and reduce agglomeration. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 19961944 |
| DOI: | 10.3390/ma18245497 |
