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A highly reactive precursor in the iron sulfide system.

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.

SUBMITTER: Matamoros-Veloza A

PROVIDER: S-EPMC6081449 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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A highly reactive precursor in the iron sulfide system.

Matamoros-Veloza Adriana A Cespedes Oscar O Johnson Benjamin R G BRG Stawski Tomasz M TM Terranova Umberto U de Leeuw Nora H NH Benning Liane G LG

Nature communications 20180807 1

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 (FeS<sub>nano</sub>) that is a necessary solid-phase precursor to the conventionally assumed initial precipitate in the iron sulfide system, mackinawite. The stru ...[more]

PMID: 30087338

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