A highly reactive precursor in the iron sulfide system

Adriana Matamoros-Veloza (), Oscar Cespedes, Benjamin R. G. Johnson, Tomasz M. Stawski, Umberto Terranova, Nora H. de Leeuw and Liane G. Benning ()
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Adriana Matamoros-Veloza: University of Leeds
Oscar Cespedes: University of Leeds
Benjamin R. G. Johnson: University of Leeds
Tomasz M. Stawski: University of Leeds
Umberto Terranova: University College London
Nora H. de Leeuw: University College London
Liane G. Benning: University of Leeds

Nature Communications, 2018, vol. 9, issue 1, 1-7

Abstract: Abstract Iron sulfur (Fe–S) phases have been implicated in the emergence of life on early Earth due to their catalytic role in the synthesis of prebiotic molecules. Similarly, Fe–S phases are currently of high interest in the development of green catalysts and energy storage. Here we report the synthesis and structure of a nanoparticulate phase (FeSnano) that is a necessary solid-phase precursor to the conventionally assumed initial precipitate in the iron sulfide system, mackinawite. The structure of FeSnano contains tetrahedral iron, which is compensated by monosulfide and polysulfide sulfur species. These together dramatically affect the stability and enhance the reactivity of FeSnano.

Date: 2018
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DOI: 10.1038/s41467-018-05493-x

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