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DOI	10.1073/pnas.2109768118
	The trisulfur radical ion S3•- controls platinum transport by hydrothermal fluids
	Pokrovski G.S.; Kokh M.A.; Desmaele E.; Laskar C.; Bazarkina E.F.; Borisova A.Y.; Testemale D.; Hazemann J.-L.; Vuilleumier R.; Ferlat G.; Saitta A.M.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:34
英文摘要	Platinum group elements (PGE) are considered to be very poorly soluble in aqueous fluids in most natural hydrothermal–magmatic contexts and industrial processes. Here, we combined in situ X-ray absorption spectroscopy and solubility experiments with atomistic and thermodynamic simulations to demonstrate that the trisulfur radical ion S3•- forms very stable and soluble complexes with both PtII and PtIV in sulfur-bearing aqueous solution at elevated temperatures (∼300 °C). These Pt-bearing species enable (re)mobilization, transfer, and focused precipitation of platinum up to 10,000 times more efficiently than any other common inorganic ligand, such as hydroxide, chloride, sulfate, or sulfide. Our results imply a far more important contribution of sulfur-bearing hydrothermal fluids to PGE transfer and accumulation in the Earth’s crust than believed previously. This discovery challenges traditional models of PGE economic concentration from silicate and sulfide melts and provides new possibilities for resource prospecting in hydrothermal shallow crust settings. The exceptionally high capacity of the S3•- ion to bind platinum may also offer new routes for PGE selective extraction from ore and hydrothermal synthesis of noble metal nanomaterials. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Hydrothermal fluid; Platinum; Platinum group elements; Sulfur; Trisulfur radical ion
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238417
作者单位	Experimental Géosciences Team, GéoExp, Géosciences Environnement Toulouse, UMR 5563 of the Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement, Centre National d’Etudes Spatiales, Observatoire Midi-Pyrénées, Université Paul Sabatier Toulouse III, Toulouse, F-31400, France; Institut für Geowissenschaften, Universität Potsdam, Potsdam, D-14476, Germany; PASTEUR, Département de Chimie, École Normale Supérieure, CNRS, PSL University, Sorbonne Université, Paris, F-75005, France; CNRS, Institut Néel, Université Grenoble Alpes, Grenoble Cedex 9, F-38042, France; Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry, Russian Academy of Sciences, Moscow, 119017, Russian Federation; Geological Department, Lomonosov Moscow State University, Vorobievy Gory, Moscow, 119991, Russian Federation; CNRS, UMR 7590, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, Sorbonne Université, Paris, F-75005, France
推荐引用方式 GB/T 7714	Pokrovski G.S.,Kokh M.A.,Desmaele E.,等. The trisulfur radical ion S3•- controls platinum transport by hydrothermal fluids[J],2021,118(34).
APA	Pokrovski G.S..,Kokh M.A..,Desmaele E..,Laskar C..,Bazarkina E.F..,...&Saitta A.M..(2021).The trisulfur radical ion S3•- controls platinum transport by hydrothermal fluids.Proceedings of the National Academy of Sciences of the United States of America,118(34).
MLA	Pokrovski G.S.,et al."The trisulfur radical ion S3•- controls platinum transport by hydrothermal fluids".Proceedings of the National Academy of Sciences of the United States of America 118.34(2021).