Ultrafast carbothermal reduction of silica to silicon using a CO(2) laser beam

We report the extraction of silicon via a carbothermal reduction process using a CO(2) laser beam as a heat source. The surface of a mixture of silica and carbon black powder became brown after laser beam irradiation for a few tens of seconds, and clear peaks of crystalline silicon were observed by...

Descripción completa

Detalles Bibliográficos
Autores principales: Maeng, Seok-Ho, Lee, Hakju, Park, Min Soo, Park, Suhyun, Jeong, Jaeki, Kim, Seongbeom
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7729951/
https://www.ncbi.nlm.nih.gov/pubmed/33303838
http://dx.doi.org/10.1038/s41598-020-78562-1
_version_ 1783621575066517504
author Maeng, Seok-Ho
Lee, Hakju
Park, Min Soo
Park, Suhyun
Jeong, Jaeki
Kim, Seongbeom
author_facet Maeng, Seok-Ho
Lee, Hakju
Park, Min Soo
Park, Suhyun
Jeong, Jaeki
Kim, Seongbeom
author_sort Maeng, Seok-Ho
collection PubMed
description We report the extraction of silicon via a carbothermal reduction process using a CO(2) laser beam as a heat source. The surface of a mixture of silica and carbon black powder became brown after laser beam irradiation for a few tens of seconds, and clear peaks of crystalline silicon were observed by Raman shift measurements, confirming the successful carbothermal reduction of silica. The influence of process parameters, including the laser beam intensity, radiation time, nitrogen gas flow in a reaction chamber, and the molar ratios of silica/carbon black of the mixture, on the carbothermal reduction process is explained in detail.
format Online
Article
Text
id pubmed-7729951
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-77299512020-12-14 Ultrafast carbothermal reduction of silica to silicon using a CO(2) laser beam Maeng, Seok-Ho Lee, Hakju Park, Min Soo Park, Suhyun Jeong, Jaeki Kim, Seongbeom Sci Rep Article We report the extraction of silicon via a carbothermal reduction process using a CO(2) laser beam as a heat source. The surface of a mixture of silica and carbon black powder became brown after laser beam irradiation for a few tens of seconds, and clear peaks of crystalline silicon were observed by Raman shift measurements, confirming the successful carbothermal reduction of silica. The influence of process parameters, including the laser beam intensity, radiation time, nitrogen gas flow in a reaction chamber, and the molar ratios of silica/carbon black of the mixture, on the carbothermal reduction process is explained in detail. Nature Publishing Group UK 2020-12-10 /pmc/articles/PMC7729951/ /pubmed/33303838 http://dx.doi.org/10.1038/s41598-020-78562-1 Text en © The Author(s) 2020 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Maeng, Seok-Ho
Lee, Hakju
Park, Min Soo
Park, Suhyun
Jeong, Jaeki
Kim, Seongbeom
Ultrafast carbothermal reduction of silica to silicon using a CO(2) laser beam
title Ultrafast carbothermal reduction of silica to silicon using a CO(2) laser beam
title_full Ultrafast carbothermal reduction of silica to silicon using a CO(2) laser beam
title_fullStr Ultrafast carbothermal reduction of silica to silicon using a CO(2) laser beam
title_full_unstemmed Ultrafast carbothermal reduction of silica to silicon using a CO(2) laser beam
title_short Ultrafast carbothermal reduction of silica to silicon using a CO(2) laser beam
title_sort ultrafast carbothermal reduction of silica to silicon using a co(2) laser beam
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7729951/
https://www.ncbi.nlm.nih.gov/pubmed/33303838
http://dx.doi.org/10.1038/s41598-020-78562-1
work_keys_str_mv AT maengseokho ultrafastcarbothermalreductionofsilicatosiliconusingaco2laserbeam
AT leehakju ultrafastcarbothermalreductionofsilicatosiliconusingaco2laserbeam
AT parkminsoo ultrafastcarbothermalreductionofsilicatosiliconusingaco2laserbeam
AT parksuhyun ultrafastcarbothermalreductionofsilicatosiliconusingaco2laserbeam
AT jeongjaeki ultrafastcarbothermalreductionofsilicatosiliconusingaco2laserbeam
AT kimseongbeom ultrafastcarbothermalreductionofsilicatosiliconusingaco2laserbeam

Ejemplares similares