Reaction of Ni2+ and SnS as a Way to Form Ni@SnS and Sn2Ni3S2 Nanocrystals: Control of Product Formation and Shape

Rommel, Stefan Michael and Weihrich, Richard (2015) Reaction of Ni2+ and SnS as a Way to Form Ni@SnS and Sn2Ni3S2 Nanocrystals: Control of Product Formation and Shape. CHEMISTRY-A EUROPEAN JOURNAL, 21 (27). pp. 9863-9867. ISSN 0947-6539, 1521-3765

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Abstract

Reductive diffusion of Ni2+ into SnS particles was shown to selectively form Sn2Ni3S2, hybrid, or even core-shell Ni@SnS, Ni1.523Sn, and Ni3S2, by tuning the reaction conditions at low temperatures. The mechanism of Ni2+ reduction and diffusion into SnS was observed in ethylene glycol, which served both as solvent and reducing agent. Tuning of reaction temperature and duration, morphology of the template SnS, and the application of ethylenediamine as supporting chelating agent, influence the formation of the final products. Their formation was controlled by carefully adjusting redox and equilibrium reactions. The products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy analysis (EDX).

Item Type: Article
Uncontrolled Keywords: LOW-TEMPERATURE ROUTE; CRYSTAL-STRUCTURE; HALF-ANTIPEROVSKITES; SOLVOTHERMAL SYNTHESIS; ETHYLENEDIAMINE; NANOPARTICLES; PRECURSORS; NICKEL; DFT; CHALCOGENIDES; synthetic methods; formation mechanism; nanoparticles; template synthesis; ternary chalcogenide
Subjects: 500 Science > 540 Chemistry & allied sciences
Divisions: Chemistry and Pharmacy > Institut für Anorganische Chemie
Depositing User: Dr. Gernot Deinzer
Date Deposited: 10 Jul 2019 13:10
Last Modified: 10 Jul 2019 13:10
URI: https://pred.uni-regensburg.de/id/eprint/5297

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