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DOI | 10.1073/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 |
URL | 查看原文 |
引用统计 | |
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 |
推荐引用方式 GB/T 7714 | 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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