Method for preparing nanoscale porous crystal Si through magnesiothermic reduction
The invention discloses a method for preparing nanoscale porous crystal Si through magnesiothermic reduction, which belongs to the technical field of silicon material preparation. The method comprises the following steps of preparing spherical nanoscale SiO2 particles through hydrolysis and condensa...
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creator | HUANG RUI'AN LI KUNRU SHENG WANTING GUO YUZHONG |
description | The invention discloses a method for preparing nanoscale porous crystal Si through magnesiothermic reduction, which belongs to the technical field of silicon material preparation. The method comprises the following steps of preparing spherical nanoscale SiO2 particles through hydrolysis and condensation of TEOS by taking L-lysine as a catalyst, enabling the prepared nanoscale SiO2 particles and Mg powder to be subjected to ball milling and mixing to obtain a Mg@SiO2 complex, then enabling the Mg@SiO2 complex to be subjected to magnesiothermic reduction reaction, and then acquiring the nanoscale porous crystal Si particles through HCl acid etching, centrifugation and drying. The nano SiO2 material prepared by the method is uniform in particle size and relatively large in specific surface area, and provides convenience for subsequent procedures applied to nano SiO2; the SiO2 is uniformly mixed with Mg powder to form a Mg@SiO2 complex, the diffusion path of Mg steam is shortened, the reaction degree is improved, |
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The method comprises the following steps of preparing spherical nanoscale SiO2 particles through hydrolysis and condensation of TEOS by taking L-lysine as a catalyst, enabling the prepared nanoscale SiO2 particles and Mg powder to be subjected to ball milling and mixing to obtain a Mg@SiO2 complex, then enabling the Mg@SiO2 complex to be subjected to magnesiothermic reduction reaction, and then acquiring the nanoscale porous crystal Si particles through HCl acid etching, centrifugation and drying. The nano SiO2 material prepared by the method is uniform in particle size and relatively large in specific surface area, and provides convenience for subsequent procedures applied to nano SiO2; the SiO2 is uniformly mixed with Mg powder to form a Mg@SiO2 complex, the diffusion path of Mg steam is shortened, the reaction degree is improved,</description><language>chi ; eng</language><subject>CHEMISTRY ; COMPOUNDS THEREOF ; INORGANIC CHEMISTRY ; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES ; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES ; METALLURGY ; NANOTECHNOLOGY ; NON-METALLIC ELEMENTS ; PERFORMING OPERATIONS ; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES ; TRANSPORTING</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210528&DB=EPODOC&CC=CN&NR=112850716A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25547,76298</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210528&DB=EPODOC&CC=CN&NR=112850716A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HUANG RUI'AN</creatorcontrib><creatorcontrib>LI KUNRU</creatorcontrib><creatorcontrib>SHENG WANTING</creatorcontrib><creatorcontrib>GUO YUZHONG</creatorcontrib><title>Method for preparing nanoscale porous crystal Si through magnesiothermic reduction</title><description>The invention discloses a method for preparing nanoscale porous crystal Si through magnesiothermic reduction, which belongs to the technical field of silicon material preparation. The method comprises the following steps of preparing spherical nanoscale SiO2 particles through hydrolysis and condensation of TEOS by taking L-lysine as a catalyst, enabling the prepared nanoscale SiO2 particles and Mg powder to be subjected to ball milling and mixing to obtain a Mg@SiO2 complex, then enabling the Mg@SiO2 complex to be subjected to magnesiothermic reduction reaction, and then acquiring the nanoscale porous crystal Si particles through HCl acid etching, centrifugation and drying. 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The method comprises the following steps of preparing spherical nanoscale SiO2 particles through hydrolysis and condensation of TEOS by taking L-lysine as a catalyst, enabling the prepared nanoscale SiO2 particles and Mg powder to be subjected to ball milling and mixing to obtain a Mg@SiO2 complex, then enabling the Mg@SiO2 complex to be subjected to magnesiothermic reduction reaction, and then acquiring the nanoscale porous crystal Si particles through HCl acid etching, centrifugation and drying. The nano SiO2 material prepared by the method is uniform in particle size and relatively large in specific surface area, and provides convenience for subsequent procedures applied to nano SiO2; the SiO2 is uniformly mixed with Mg powder to form a Mg@SiO2 complex, the diffusion path of Mg steam is shortened, the reaction degree is improved,</abstract><oa>free_for_read</oa></addata></record> |
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subjects | CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY NANOTECHNOLOGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSPORTING |
title | Method for preparing nanoscale porous crystal Si through magnesiothermic reduction |
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