X-ray absorption spectroscopic study of Pd2+ on Ni site in pentlandite
Norilsk sulfide ores are one of the largest known sources of Pd on Earth. Palladium in these ores is presented in platinum-group minerals (PGM) and base metal sulfides (BMS), especially in pentlandite [(Fe,Ni)(9)S-8]. Although several studies demonstrated high concentrations along with heterogeneous...
Published in: | American Mineralogist |
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Language: | English |
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2023
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Online Access: | https://biblio.ugent.be/publication/01HNZB6ZJ4TYR9HBR7S6JRQ18H http://hdl.handle.net/1854/LU-01HNZB6ZJ4TYR9HBR7S6JRQ18H https://doi.org/10.2138/am-2022-8704 https://biblio.ugent.be/publication/01HNZB6ZJ4TYR9HBR7S6JRQ18H/file/01HNZBFENVKEFE8W8FAS6S931P |
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ftunivgent:oai:archive.ugent.be:01HNZB6ZJ4TYR9HBR7S6JRQ18H 2024-04-28T08:29:13+00:00 X-ray absorption spectroscopic study of Pd2+ on Ni site in pentlandite Brovchenko, Valeriya Merkulova, Margarita Sittner, Jonathan Shilovskih, Vladimir Borca, Camelia Huthwelker, Thomas Sluzhenikin, Sergey F. Cnudde, Veerle 2023 application/pdf https://biblio.ugent.be/publication/01HNZB6ZJ4TYR9HBR7S6JRQ18H http://hdl.handle.net/1854/LU-01HNZB6ZJ4TYR9HBR7S6JRQ18H https://doi.org/10.2138/am-2022-8704 https://biblio.ugent.be/publication/01HNZB6ZJ4TYR9HBR7S6JRQ18H/file/01HNZBFENVKEFE8W8FAS6S931P eng eng https://biblio.ugent.be/publication/01HNZB6ZJ4TYR9HBR7S6JRQ18H http://hdl.handle.net/1854/LU-01HNZB6ZJ4TYR9HBR7S6JRQ18H http://doi.org/10.2138/am-2022-8704 https://biblio.ugent.be/publication/01HNZB6ZJ4TYR9HBR7S6JRQ18H/file/01HNZBFENVKEFE8W8FAS6S931P No license (in copyright) info:eu-repo/semantics/restrictedAccess AMERICAN MINERALOGIST ISSN: 0003-004X ISSN: 1945-3027 Earth and Environmental Sciences Palladium pentlandite platinum-group minerals XANES mu XRF EBSD EPMA PLATINUM-GROUP ELEMENTS J-M REEF BUSHVELD COMPLEX PHASE-RELATIONS MERENSKY REEF STILLWATER COMPLEX SULFIDE MINERALS WHOLE-ROCKS NORILSK SYSTEM journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2023 ftunivgent https://doi.org/10.2138/am-2022-8704 2024-04-09T23:31:17Z Norilsk sulfide ores are one of the largest known sources of Pd on Earth. Palladium in these ores is presented in platinum-group minerals (PGM) and base metal sulfides (BMS), especially in pentlandite [(Fe,Ni)(9)S-8]. Although several studies demonstrated high concentrations along with heterogeneous distribution of Pd in pentlandites from Norilsk, the form of Pd in pentlandite has not been established. Here, we provide the first evidence for Pd incorporation in the structure of pentlandite from Norilsk ores using X-ray absorption near edge structure (XANES) spectroscopy, synchrotron-based micro-X-ray fluorescence (mu XRF), and electron backscatter diffraction (EBSD). We present the first ever measured XANES spectra of Pd in pentlandite and atokite [(Pd,Pt)(3)Sn] as well as in other common Pd minerals. Divalent Pd in pentlandite was detected by XANES. The Pd spectra in pentlandite show no similarities with Pd spectra in PGM, metallic Pd, PdS, PdCl2, and PdSO4 which signifies that Pd incorporates into the lattice of pentlandite. Substitution of Ni by Pd in the lattice of pentlandite is supported by negative correlations shown by mu XRF and electron probe microanalysis (EPMA) and complies with the previous studies. The additional EBSD study demonstrates a resemblance in cell parameters of the Pd-rich and Pd-poor parts of the pentlandite grains and reflects that Pd incorporation into the pentlandite structure does not imply any notable structure distortion. The combination of analytical techniques used in the present study demonstrates the great potential of these methods for understanding the mechanisms of noble metal incorporation into ore minerals. Article in Journal/Newspaper norilsk Ghent University Academic Bibliography American Mineralogist 108 11 2086 2095 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences Palladium pentlandite platinum-group minerals XANES mu XRF EBSD EPMA PLATINUM-GROUP ELEMENTS J-M REEF BUSHVELD COMPLEX PHASE-RELATIONS MERENSKY REEF STILLWATER COMPLEX SULFIDE MINERALS WHOLE-ROCKS NORILSK SYSTEM |
spellingShingle |
Earth and Environmental Sciences Palladium pentlandite platinum-group minerals XANES mu XRF EBSD EPMA PLATINUM-GROUP ELEMENTS J-M REEF BUSHVELD COMPLEX PHASE-RELATIONS MERENSKY REEF STILLWATER COMPLEX SULFIDE MINERALS WHOLE-ROCKS NORILSK SYSTEM Brovchenko, Valeriya Merkulova, Margarita Sittner, Jonathan Shilovskih, Vladimir Borca, Camelia Huthwelker, Thomas Sluzhenikin, Sergey F. Cnudde, Veerle X-ray absorption spectroscopic study of Pd2+ on Ni site in pentlandite |
topic_facet |
Earth and Environmental Sciences Palladium pentlandite platinum-group minerals XANES mu XRF EBSD EPMA PLATINUM-GROUP ELEMENTS J-M REEF BUSHVELD COMPLEX PHASE-RELATIONS MERENSKY REEF STILLWATER COMPLEX SULFIDE MINERALS WHOLE-ROCKS NORILSK SYSTEM |
description |
Norilsk sulfide ores are one of the largest known sources of Pd on Earth. Palladium in these ores is presented in platinum-group minerals (PGM) and base metal sulfides (BMS), especially in pentlandite [(Fe,Ni)(9)S-8]. Although several studies demonstrated high concentrations along with heterogeneous distribution of Pd in pentlandites from Norilsk, the form of Pd in pentlandite has not been established. Here, we provide the first evidence for Pd incorporation in the structure of pentlandite from Norilsk ores using X-ray absorption near edge structure (XANES) spectroscopy, synchrotron-based micro-X-ray fluorescence (mu XRF), and electron backscatter diffraction (EBSD). We present the first ever measured XANES spectra of Pd in pentlandite and atokite [(Pd,Pt)(3)Sn] as well as in other common Pd minerals. Divalent Pd in pentlandite was detected by XANES. The Pd spectra in pentlandite show no similarities with Pd spectra in PGM, metallic Pd, PdS, PdCl2, and PdSO4 which signifies that Pd incorporates into the lattice of pentlandite. Substitution of Ni by Pd in the lattice of pentlandite is supported by negative correlations shown by mu XRF and electron probe microanalysis (EPMA) and complies with the previous studies. The additional EBSD study demonstrates a resemblance in cell parameters of the Pd-rich and Pd-poor parts of the pentlandite grains and reflects that Pd incorporation into the pentlandite structure does not imply any notable structure distortion. The combination of analytical techniques used in the present study demonstrates the great potential of these methods for understanding the mechanisms of noble metal incorporation into ore minerals. |
format |
Article in Journal/Newspaper |
author |
Brovchenko, Valeriya Merkulova, Margarita Sittner, Jonathan Shilovskih, Vladimir Borca, Camelia Huthwelker, Thomas Sluzhenikin, Sergey F. Cnudde, Veerle |
author_facet |
Brovchenko, Valeriya Merkulova, Margarita Sittner, Jonathan Shilovskih, Vladimir Borca, Camelia Huthwelker, Thomas Sluzhenikin, Sergey F. Cnudde, Veerle |
author_sort |
Brovchenko, Valeriya |
title |
X-ray absorption spectroscopic study of Pd2+ on Ni site in pentlandite |
title_short |
X-ray absorption spectroscopic study of Pd2+ on Ni site in pentlandite |
title_full |
X-ray absorption spectroscopic study of Pd2+ on Ni site in pentlandite |
title_fullStr |
X-ray absorption spectroscopic study of Pd2+ on Ni site in pentlandite |
title_full_unstemmed |
X-ray absorption spectroscopic study of Pd2+ on Ni site in pentlandite |
title_sort |
x-ray absorption spectroscopic study of pd2+ on ni site in pentlandite |
publishDate |
2023 |
url |
https://biblio.ugent.be/publication/01HNZB6ZJ4TYR9HBR7S6JRQ18H http://hdl.handle.net/1854/LU-01HNZB6ZJ4TYR9HBR7S6JRQ18H https://doi.org/10.2138/am-2022-8704 https://biblio.ugent.be/publication/01HNZB6ZJ4TYR9HBR7S6JRQ18H/file/01HNZBFENVKEFE8W8FAS6S931P |
genre |
norilsk |
genre_facet |
norilsk |
op_source |
AMERICAN MINERALOGIST ISSN: 0003-004X ISSN: 1945-3027 |
op_relation |
https://biblio.ugent.be/publication/01HNZB6ZJ4TYR9HBR7S6JRQ18H http://hdl.handle.net/1854/LU-01HNZB6ZJ4TYR9HBR7S6JRQ18H http://doi.org/10.2138/am-2022-8704 https://biblio.ugent.be/publication/01HNZB6ZJ4TYR9HBR7S6JRQ18H/file/01HNZBFENVKEFE8W8FAS6S931P |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.2138/am-2022-8704 |
container_title |
American Mineralogist |
container_volume |
108 |
container_issue |
11 |
container_start_page |
2086 |
op_container_end_page |
2095 |
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1797587531727896576 |