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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2601.01316 |
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| _version_ | 1866918271204196352 |
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| author | Subramani, Tamilarasan Lilova, Kristina Householder, Megan Yang, Shuhao Lyons, James Navrotsky, Alexandra |
| author_facet | Subramani, Tamilarasan Lilova, Kristina Householder, Megan Yang, Shuhao Lyons, James Navrotsky, Alexandra |
| contents | Surface energetics of zinc sulfide nanoparticles determines their structure, properties, and occurrence. Using a combination of experimental techniques, we investigated the thermodynamics of the two polymorphs, sphalerite and wurtzite at bulk and nanoscale to understand their occurrence. Calorimetric measurements confirmed that wurtzite has a lower surface energy than sphalerite, which causes a reversal in phase stability at the nanoscale, with wurtzite energetically stable for particle size below 10 nm. Taking these surface energies into account, a simple model of the thermodynamics of the sphalerite - wurtzite transformation as a function of particle size and temperature can explain the occurrence of the zinc sulfide polymorphs in environments as diverse as ore bodies and planetary atmospheres. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_01316 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Surface energetics of wurtzite and sphalerite polymorphs of zinc sulfide and implications for their formation in nature Subramani, Tamilarasan Lilova, Kristina Householder, Megan Yang, Shuhao Lyons, James Navrotsky, Alexandra Chemical Physics Surface energetics of zinc sulfide nanoparticles determines their structure, properties, and occurrence. Using a combination of experimental techniques, we investigated the thermodynamics of the two polymorphs, sphalerite and wurtzite at bulk and nanoscale to understand their occurrence. Calorimetric measurements confirmed that wurtzite has a lower surface energy than sphalerite, which causes a reversal in phase stability at the nanoscale, with wurtzite energetically stable for particle size below 10 nm. Taking these surface energies into account, a simple model of the thermodynamics of the sphalerite - wurtzite transformation as a function of particle size and temperature can explain the occurrence of the zinc sulfide polymorphs in environments as diverse as ore bodies and planetary atmospheres. |
| title | Surface energetics of wurtzite and sphalerite polymorphs of zinc sulfide and implications for their formation in nature |
| topic | Chemical Physics |
| url | https://arxiv.org/abs/2601.01316 |