GSTDTAP  > 地球科学
DOI10.1073/pnas.2109768118
The trisulfur radical ion S3•− controls platinum transport by hydrothermal fluids
Gleb S. Pokrovski; Maria A. Kokh; Elsa Desmaele; Clément Laskar; Elena F. Bazarkina; Anastassia Y. Borisova; Denis Testemale; Jean-Louis Hazemann; Rodolphe Vuilleumier; Guillaume Ferlat; Antonino Marco Saitta
2021-08-24
发表期刊Proceedings of the National Academy of Science
出版年2021
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.

领域地球科学
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/335978
专题地球科学
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Gleb S. Pokrovski,Maria A. Kokh,Elsa Desmaele,等. The trisulfur radical ion S3•− controls platinum transport by hydrothermal fluids[J]. Proceedings of the National Academy of Science,2021.
APA Gleb S. Pokrovski.,Maria A. Kokh.,Elsa Desmaele.,Clément Laskar.,Elena F. Bazarkina.,...&Antonino Marco Saitta.(2021).The trisulfur radical ion S3•− controls platinum transport by hydrothermal fluids.Proceedings of the National Academy of Science.
MLA Gleb S. Pokrovski,et al."The trisulfur radical ion S3•− controls platinum transport by hydrothermal fluids".Proceedings of the National Academy of Science (2021).
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