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Coherent interfaces govern direct transformation from graphite to diamond
Understanding the direct transformation from graphite to diamond has been a long-standing challenge with great scientific and practical importance. Previously proposed transformation mechanisms(1–3), based on traditional experimental observations that lacked atomistic resolution, cannot account for...
Autores principales: | , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9300464/ https://www.ncbi.nlm.nih.gov/pubmed/35794481 http://dx.doi.org/10.1038/s41586-022-04863-2 |
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author | Luo, Kun Liu, Bing Hu, Wentao Dong, Xiao Wang, Yanbin Huang, Quan Gao, Yufei Sun, Lei Zhao, Zhisheng Wu, Yingju Zhang, Yang Ma, Mengdong Zhou, Xiang-Feng He, Julong Yu, Dongli Liu, Zhongyuan Xu, Bo Tian, Yongjun |
author_facet | Luo, Kun Liu, Bing Hu, Wentao Dong, Xiao Wang, Yanbin Huang, Quan Gao, Yufei Sun, Lei Zhao, Zhisheng Wu, Yingju Zhang, Yang Ma, Mengdong Zhou, Xiang-Feng He, Julong Yu, Dongli Liu, Zhongyuan Xu, Bo Tian, Yongjun |
author_sort | Luo, Kun |
collection | PubMed |
description | Understanding the direct transformation from graphite to diamond has been a long-standing challenge with great scientific and practical importance. Previously proposed transformation mechanisms(1–3), based on traditional experimental observations that lacked atomistic resolution, cannot account for the complex nanostructures occurring at graphite−diamond interfaces during the transformation(4,5). Here we report the identification of coherent graphite−diamond interfaces, which consist of four basic structural motifs, in partially transformed graphite samples recovered from static compression, using high-angle annular dark-field scanning transmission electron microscopy. These observations provide insight into possible pathways of the transformation. Theoretical calculations confirm that transformation through these coherent interfaces is energetically favoured compared with those through other paths previously proposed(1–3). The graphite-to-diamond transformation is governed by the formation of nanoscale coherent interfaces (diamond nucleation), which, under static compression, advance to consume the remaining graphite (diamond growth). These results may also shed light on transformation mechanisms of other carbon materials and boron nitride under different synthetic conditions. |
format | Online Article Text |
id | pubmed-9300464 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-93004642022-07-22 Coherent interfaces govern direct transformation from graphite to diamond Luo, Kun Liu, Bing Hu, Wentao Dong, Xiao Wang, Yanbin Huang, Quan Gao, Yufei Sun, Lei Zhao, Zhisheng Wu, Yingju Zhang, Yang Ma, Mengdong Zhou, Xiang-Feng He, Julong Yu, Dongli Liu, Zhongyuan Xu, Bo Tian, Yongjun Nature Article Understanding the direct transformation from graphite to diamond has been a long-standing challenge with great scientific and practical importance. Previously proposed transformation mechanisms(1–3), based on traditional experimental observations that lacked atomistic resolution, cannot account for the complex nanostructures occurring at graphite−diamond interfaces during the transformation(4,5). Here we report the identification of coherent graphite−diamond interfaces, which consist of four basic structural motifs, in partially transformed graphite samples recovered from static compression, using high-angle annular dark-field scanning transmission electron microscopy. These observations provide insight into possible pathways of the transformation. Theoretical calculations confirm that transformation through these coherent interfaces is energetically favoured compared with those through other paths previously proposed(1–3). The graphite-to-diamond transformation is governed by the formation of nanoscale coherent interfaces (diamond nucleation), which, under static compression, advance to consume the remaining graphite (diamond growth). These results may also shed light on transformation mechanisms of other carbon materials and boron nitride under different synthetic conditions. Nature Publishing Group UK 2022-07-06 2022 /pmc/articles/PMC9300464/ /pubmed/35794481 http://dx.doi.org/10.1038/s41586-022-04863-2 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Luo, Kun Liu, Bing Hu, Wentao Dong, Xiao Wang, Yanbin Huang, Quan Gao, Yufei Sun, Lei Zhao, Zhisheng Wu, Yingju Zhang, Yang Ma, Mengdong Zhou, Xiang-Feng He, Julong Yu, Dongli Liu, Zhongyuan Xu, Bo Tian, Yongjun Coherent interfaces govern direct transformation from graphite to diamond |
title | Coherent interfaces govern direct transformation from graphite to diamond |
title_full | Coherent interfaces govern direct transformation from graphite to diamond |
title_fullStr | Coherent interfaces govern direct transformation from graphite to diamond |
title_full_unstemmed | Coherent interfaces govern direct transformation from graphite to diamond |
title_short | Coherent interfaces govern direct transformation from graphite to diamond |
title_sort | coherent interfaces govern direct transformation from graphite to diamond |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9300464/ https://www.ncbi.nlm.nih.gov/pubmed/35794481 http://dx.doi.org/10.1038/s41586-022-04863-2 |
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