Determinants of crystal structure transformation of ionic nanocrystals in cation exchange reactions
Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works..
Changes in the crystal system of an ionic nanocrystal during a cation exchange reaction are unusual yet remain to be systematically investigated. In this study, chemical synthesis and computational modeling demonstrated that the height of hexagonal-prism roxbyite (Cu1.8S) nanocrystals with a distorted hexagonal close-packed sulfide anion (S2-) sublattice determines the final crystal phase of the cation-exchanged products with Co2+ [wurtzite cobalt sulfide (CoS) with hexagonal close-packed S2- and/or cobalt pentlandite (Co9S8) with cubic close-packed S2-]. Thermodynamic instability of exposed planes drives reconstruction of anion frameworks under mild reaction conditions. Other incoming cations (Mn2+, Zn2+, and Ni2+) modulate crystal structure transformation during cation exchange reactions by various means, such as volume, thermodynamic stability, and coordination environment.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:373 |
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| Enthalten in: |
Science (New York, N.Y.) - 373(2021), 6552 vom: 16. Juli, Seite 332-337 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Li, Zhanzhao [VerfasserIn] |
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Date Completed 07.09.2021 Date Revised 07.09.2021 published: Print Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1126/science.abh2741 |
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| funding: |
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NLM329802666 |
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| 500 | |a Date Revised 07.09.2021 | ||
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| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. | ||
| 520 | |a Changes in the crystal system of an ionic nanocrystal during a cation exchange reaction are unusual yet remain to be systematically investigated. In this study, chemical synthesis and computational modeling demonstrated that the height of hexagonal-prism roxbyite (Cu1.8S) nanocrystals with a distorted hexagonal close-packed sulfide anion (S2-) sublattice determines the final crystal phase of the cation-exchanged products with Co2+ [wurtzite cobalt sulfide (CoS) with hexagonal close-packed S2- and/or cobalt pentlandite (Co9S8) with cubic close-packed S2-]. Thermodynamic instability of exposed planes drives reconstruction of anion frameworks under mild reaction conditions. Other incoming cations (Mn2+, Zn2+, and Ni2+) modulate crystal structure transformation during cation exchange reactions by various means, such as volume, thermodynamic stability, and coordination environment | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Saruyama, Masaki |e verfasserin |4 aut | |
| 700 | 1 | |a Asaka, Toru |e verfasserin |4 aut | |
| 700 | 1 | |a Tatetsu, Yasutomi |e verfasserin |4 aut | |
| 700 | 1 | |a Teranishi, Toshiharu |e verfasserin |4 aut | |
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