Fast Microwave Synthesis of Phase-Pure Ni2FeS4 Thiospinel Nanosheets for Application in Electrochemical CO2 ReductionClick to copy article linkArticle link copied!
- Christopher SimonChristopher SimonDepartment of Chemistry, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, GermanyMore by Christopher Simon
- Judith ZanderJudith ZanderDepartment of Chemistry, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, GermanyMore by Judith Zander
- Tintula KottakkatTintula KottakkatFaculty of Engineering, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, GermanyMore by Tintula Kottakkat
- Morten WeissMorten WeissDepartment of Chemistry, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, GermanyMore by Morten Weiss
- Jana TimmJana TimmDepartment of Chemistry, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, GermanyMore by Jana Timm
- Christina RothChristina RothFaculty of Engineering, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, GermanyMore by Christina Roth
- Roland Marschall*Roland Marschall*Email: [email protected]Department of Chemistry, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, GermanyMore by Roland Marschall
Abstract

Phase-pure spinel Ni2FeS4 nanosheets with a specific surface area of 80 m2 g–1 were successfully prepared via fast and energy-saving microwave-assisted nonaqueous sol–gel synthesis, starting from metal acetylacetonates and benzyl mercaptan as the sulfur source. Synthesized nanosheets were characterized thoroughly by X-ray diffraction including Rietveld refinement, X-ray photoelectron spectroscopy, energy-dispersive X-ray spectroscopy, electron microscopy, nitrogen and water vapor physisorption measurements, and thermogravimetric analysis coupled with mass spectrometry. Such noble metal free Ni2FeS4 nanosheets were successfully applied as electrocatalyst for the aqueous carbon dioxide reduction reaction, yielding selectively the syngas components hydrogen and carbon monoxide.
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