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Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure
The catalytic effects of chromium (Cr) on the direct nitridation of silicon (Si) and morphology of nitridation product were investigated. Cr dramatically improved the conversation of Si to silicon nitride (Si(3)N(4)). The complete conversion was achieved at 1350 °C upon addition of 1.25 wt% Cr. This...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4985709/ https://www.ncbi.nlm.nih.gov/pubmed/27527681 http://dx.doi.org/10.1038/srep31559 |
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author | Liang, Feng Lu, Lilin Tian, Liang Li, Faliang Zhang, Haijun Zhang, Shaowei |
author_facet | Liang, Feng Lu, Lilin Tian, Liang Li, Faliang Zhang, Haijun Zhang, Shaowei |
author_sort | Liang, Feng |
collection | PubMed |
description | The catalytic effects of chromium (Cr) on the direct nitridation of silicon (Si) and morphology of nitridation product were investigated. Cr dramatically improved the conversation of Si to silicon nitride (Si(3)N(4)). The complete conversion was achieved at 1350 °C upon addition of 1.25 wt% Cr. This temperature was much lower than that required in the case without using a catalyst. Meanwhile, Cr played an important role in the in-situ growth of one-dimensional (1-D) α-Si(3)N(4) nanostructures. α-Si(3)N(4) nanowires and nanobelts became the primary product phases when 5 wt% Cr was used as the catalyst. The growth processes of the 1-D α-Si(3)N(4) nanostructures were governed by the vapor-solid mechanism. First-principle calculations suggest that electrons can be transferred from Cr atoms to N atoms, facilitating the Si nitridation. |
format | Online Article Text |
id | pubmed-4985709 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-49857092016-08-22 Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure Liang, Feng Lu, Lilin Tian, Liang Li, Faliang Zhang, Haijun Zhang, Shaowei Sci Rep Article The catalytic effects of chromium (Cr) on the direct nitridation of silicon (Si) and morphology of nitridation product were investigated. Cr dramatically improved the conversation of Si to silicon nitride (Si(3)N(4)). The complete conversion was achieved at 1350 °C upon addition of 1.25 wt% Cr. This temperature was much lower than that required in the case without using a catalyst. Meanwhile, Cr played an important role in the in-situ growth of one-dimensional (1-D) α-Si(3)N(4) nanostructures. α-Si(3)N(4) nanowires and nanobelts became the primary product phases when 5 wt% Cr was used as the catalyst. The growth processes of the 1-D α-Si(3)N(4) nanostructures were governed by the vapor-solid mechanism. First-principle calculations suggest that electrons can be transferred from Cr atoms to N atoms, facilitating the Si nitridation. Nature Publishing Group 2016-08-16 /pmc/articles/PMC4985709/ /pubmed/27527681 http://dx.doi.org/10.1038/srep31559 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Liang, Feng Lu, Lilin Tian, Liang Li, Faliang Zhang, Haijun Zhang, Shaowei Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure |
title | Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure |
title_full | Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure |
title_fullStr | Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure |
title_full_unstemmed | Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure |
title_short | Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure |
title_sort | catalytic effects of cr on nitridation of silicon and formation of one-dimensional silicon nitride nanostructure |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4985709/ https://www.ncbi.nlm.nih.gov/pubmed/27527681 http://dx.doi.org/10.1038/srep31559 |
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