Stabilization of pyrite (FeS2), marcasite (FeS2), arsenopyrite (FeAsS) and loellingite (FeAs2) surfaces by polymerization and auto-redox reactions

S. L. Harmer; H. W. Nesbitt

doi:10.1016/j.susc.2004.06.199

Stabilization of pyrite (FeS₂), marcasite (FeS₂), arsenopyrite (FeAsS) and loellingite (FeAs₂) surfaces by polymerization and auto-redox reactions

S. L. Harmer, H. W. Nesbitt

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

The polymerization and auto-redox reactions of the stabilization of pyrite, marcasite, arsenopyrite and loellingite surfaces was studied. Through the consideration of bulk structure and electronegativity of the elements constituting the dichalcogenides, the route to stabilization was predicted. Auto-redox and polymerization reactions stabilized uncompensated surfaces of the 3d transition metal-bearing dichalcogenides. It was observed that the bulk structure of the individual minerals coupled with the difference in the electronegativity of the Fe and ligand, determine the extent to which a surface auto-redox reaction or surface polymerization reaction stabilize the surface of Fe dichalcogenides.

Original language	English
Pages (from-to)	38-52
Number of pages	15
Journal	Surface Science
Volume	564
Issue number	1-3
DOIs	https://doi.org/10.1016/j.susc.2004.06.199
Publication status	Published - 20 Aug 2004
Externally published	Yes

Keywords

Arsenic
Iron
Morphology
Roughness
Sulphides
Surface electronic phenomena (work function, surface potential, surface states, etc.)
Surface structure
Topography
X-ray photoelectron spectroscopy

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title = "Stabilization of pyrite (FeS2), marcasite (FeS2), arsenopyrite (FeAsS) and loellingite (FeAs2) surfaces by polymerization and auto-redox reactions",

abstract = "The polymerization and auto-redox reactions of the stabilization of pyrite, marcasite, arsenopyrite and loellingite surfaces was studied. Through the consideration of bulk structure and electronegativity of the elements constituting the dichalcogenides, the route to stabilization was predicted. Auto-redox and polymerization reactions stabilized uncompensated surfaces of the 3d transition metal-bearing dichalcogenides. It was observed that the bulk structure of the individual minerals coupled with the difference in the electronegativity of the Fe and ligand, determine the extent to which a surface auto-redox reaction or surface polymerization reaction stabilize the surface of Fe dichalcogenides.",

keywords = "Arsenic, Iron, Morphology, Roughness, Sulphides, Surface electronic phenomena (work function, surface potential, surface states, etc.), Surface structure, Topography, X-ray photoelectron spectroscopy",

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AU - Harmer, S. L.

AU - Nesbitt, H. W.

PY - 2004/8/20

Y1 - 2004/8/20

N2 - The polymerization and auto-redox reactions of the stabilization of pyrite, marcasite, arsenopyrite and loellingite surfaces was studied. Through the consideration of bulk structure and electronegativity of the elements constituting the dichalcogenides, the route to stabilization was predicted. Auto-redox and polymerization reactions stabilized uncompensated surfaces of the 3d transition metal-bearing dichalcogenides. It was observed that the bulk structure of the individual minerals coupled with the difference in the electronegativity of the Fe and ligand, determine the extent to which a surface auto-redox reaction or surface polymerization reaction stabilize the surface of Fe dichalcogenides.

AB - The polymerization and auto-redox reactions of the stabilization of pyrite, marcasite, arsenopyrite and loellingite surfaces was studied. Through the consideration of bulk structure and electronegativity of the elements constituting the dichalcogenides, the route to stabilization was predicted. Auto-redox and polymerization reactions stabilized uncompensated surfaces of the 3d transition metal-bearing dichalcogenides. It was observed that the bulk structure of the individual minerals coupled with the difference in the electronegativity of the Fe and ligand, determine the extent to which a surface auto-redox reaction or surface polymerization reaction stabilize the surface of Fe dichalcogenides.

KW - Arsenic

KW - Iron

KW - Morphology

KW - Roughness

KW - Sulphides

KW - Surface electronic phenomena (work function, surface potential, surface states, etc.)

KW - Surface structure

KW - Topography

KW - X-ray photoelectron spectroscopy

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DO - 10.1016/j.susc.2004.06.199

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VL - 564

SP - 38

EP - 52

JO - Surface Science

JF - Surface Science

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ER -

Stabilization of pyrite (FeS₂), marcasite (FeS₂), arsenopyrite (FeAsS) and loellingite (FeAs₂) surfaces by polymerization and auto-redox reactions

Abstract

Keywords

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