Fabrication of high-surface-area, SiO2 supported polyimide carbon aerogel microspheres: electrochemical application
A series of polyimide (PI)/SiO2 aerogel microspheres were prepared by using polyamide acid salt and hydrolyzed tetraethyl orthosilicate based on the reverse-phase emulsion method. Then, PI/SiO2 aerogel microspheres were carbonized and etched to obtain carbon aerogel microspheres (CAMs). Scanning ele...
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| Veröffentlicht in: | JPhys materials 2023-01, Vol.6 (1), p.015002 |
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| creator | Liu, Shi Ji, Jianqi Wang, Yixing Yan, Cenqi Bai, Huitao Qin, Jiaqiang Cheng, Pei |
| description | A series of polyimide (PI)/SiO2 aerogel microspheres were prepared by using polyamide acid salt and hydrolyzed tetraethyl orthosilicate based on the reverse-phase emulsion method. Then, PI/SiO2 aerogel microspheres were carbonized and etched to obtain carbon aerogel microspheres (CAMs). Scanning electron microscope, transmission electron microscope and nitrogen isothermal adsorption were used to characterize the micro-morphology and pore structure of the microspheres; and electrochemical workstation was used to test the electrochemical performance of the CAMs. The results showed that CAMs with different pore structures and specific surface area were obtained by adjusting the content of SiO2. Highest specific surface area of 1166.9 m2 g−1 and a total pore volume of 1.2369 cm3 g−1 were achieved at a SiO2 content of 50%. When used as the electrode materials for supercapacitors, these CAMs demonstrated a maximum specific capacitance of 125.1 F g−1 in a three-electrode system and a maximum capacitance of 53.3% at 30 A g−1. This article provides a new strategy for the preparation of CAMs with high specific surface area by using linear PI precursor and SiO2 support skeleton. |
| doi_str_mv | 10.1088/2515-7639/acaa59 |
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Then, PI/SiO2 aerogel microspheres were carbonized and etched to obtain carbon aerogel microspheres (CAMs). Scanning electron microscope, transmission electron microscope and nitrogen isothermal adsorption were used to characterize the micro-morphology and pore structure of the microspheres; and electrochemical workstation was used to test the electrochemical performance of the CAMs. The results showed that CAMs with different pore structures and specific surface area were obtained by adjusting the content of SiO2. Highest specific surface area of 1166.9 m2 g−1 and a total pore volume of 1.2369 cm3 g−1 were achieved at a SiO2 content of 50%. When used as the electrode materials for supercapacitors, these CAMs demonstrated a maximum specific capacitance of 125.1 F g−1 in a three-electrode system and a maximum capacitance of 53.3% at 30 A g−1. This article provides a new strategy for the preparation of CAMs with high specific surface area by using linear PI precursor and SiO2 support skeleton.</description><identifier>EISSN: 2515-7639</identifier><identifier>DOI: 10.1088/2515-7639/acaa59</identifier><language>eng</language><publisher>Bristol: IOP Publishing</publisher><subject>Aerogels ; Capacitance ; Carbon ; carbon aerogel microspheres ; Electrochemical analysis ; Electrode materials ; Electrodes ; Electron microscopes ; Microspheres ; Polyamide resins ; polyimide ; reverse emulsion ; Silicon dioxide ; SiO ; SiO2 ; Specific surface ; supercapacitors ; Surface area ; Tetraethyl orthosilicate ; Workstations</subject><ispartof>JPhys materials, 2023-01, Vol.6 (1), p.015002</ispartof><rights>2022 The Author(s). Published by IOP Publishing Ltd</rights><rights>2022 The Author(s). Published by IOP Publishing Ltd. This work is published under http://creativecommons.org/licenses/by/4.0 (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0002-1012-749X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.1088/2515-7639/acaa59/pdf$$EPDF$$P50$$Giop$$Hfree_for_read</linktopdf><link.rule.ids>314,780,784,864,2102,27924,27925,38890,53867</link.rule.ids></links><search><creatorcontrib>Liu, Shi</creatorcontrib><creatorcontrib>Ji, Jianqi</creatorcontrib><creatorcontrib>Wang, Yixing</creatorcontrib><creatorcontrib>Yan, Cenqi</creatorcontrib><creatorcontrib>Bai, Huitao</creatorcontrib><creatorcontrib>Qin, Jiaqiang</creatorcontrib><creatorcontrib>Cheng, Pei</creatorcontrib><title>Fabrication of high-surface-area, SiO2 supported polyimide carbon aerogel microspheres: electrochemical application</title><title>JPhys materials</title><addtitle>JPhysMaterials</addtitle><addtitle>J. Phys. Mater</addtitle><description>A series of polyimide (PI)/SiO2 aerogel microspheres were prepared by using polyamide acid salt and hydrolyzed tetraethyl orthosilicate based on the reverse-phase emulsion method. Then, PI/SiO2 aerogel microspheres were carbonized and etched to obtain carbon aerogel microspheres (CAMs). Scanning electron microscope, transmission electron microscope and nitrogen isothermal adsorption were used to characterize the micro-morphology and pore structure of the microspheres; and electrochemical workstation was used to test the electrochemical performance of the CAMs. The results showed that CAMs with different pore structures and specific surface area were obtained by adjusting the content of SiO2. Highest specific surface area of 1166.9 m2 g−1 and a total pore volume of 1.2369 cm3 g−1 were achieved at a SiO2 content of 50%. When used as the electrode materials for supercapacitors, these CAMs demonstrated a maximum specific capacitance of 125.1 F g−1 in a three-electrode system and a maximum capacitance of 53.3% at 30 A g−1. This article provides a new strategy for the preparation of CAMs with high specific surface area by using linear PI precursor and SiO2 support skeleton.</description><subject>Aerogels</subject><subject>Capacitance</subject><subject>Carbon</subject><subject>carbon aerogel microspheres</subject><subject>Electrochemical analysis</subject><subject>Electrode materials</subject><subject>Electrodes</subject><subject>Electron microscopes</subject><subject>Microspheres</subject><subject>Polyamide resins</subject><subject>polyimide</subject><subject>reverse emulsion</subject><subject>Silicon dioxide</subject><subject>SiO</subject><subject>SiO2</subject><subject>Specific surface</subject><subject>supercapacitors</subject><subject>Surface area</subject><subject>Tetraethyl orthosilicate</subject><subject>Workstations</subject><issn>2515-7639</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>O3W</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>DOA</sourceid><recordid>eNptkU1rGzEURYdCoSbNvktBdiVT62OkkboroUkMBi_arsWT5o0tM7ZUabzIv68cm2TTlXiX866ETtN8YfQbo1ovuWSy7ZUwS_AA0nxoFm_Rp-a2lD2llPemo12_aMojuBw8zCEeSRzJLmx3bTnlETy2kBHuya-w4aScUop5xoGkOL2EQxiQeMiubgHmuMWJHILPsaQdZizfCU7o5xz9DmsOE4GUpus9n5uPI0wFb6_nTfPn8efvh-d2vXlaPfxYt4NQYm6lE1JTKlUvOAjXjQPttdfCmxFl31M2KCW51Gicca7CnNcJtNBKUuCduGlWl94hwt6mHA6QX2yEYF-DmLcW8hz8hLYzhvvaDI7TTjvtOKNmcKNwSvHRuNp1d-lKOf49YZntPp7ysT7f8l4qVr9TqkrdX6gQ0zvAqD2bsWcN9qzBXsxU_Ot_8H06wIzZKsssZbLKsmkYxT-VTZIM</recordid><startdate>20230101</startdate><enddate>20230101</enddate><creator>Liu, Shi</creator><creator>Ji, Jianqi</creator><creator>Wang, Yixing</creator><creator>Yan, Cenqi</creator><creator>Bai, Huitao</creator><creator>Qin, Jiaqiang</creator><creator>Cheng, Pei</creator><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0002-1012-749X</orcidid></search><sort><creationdate>20230101</creationdate><title>Fabrication of high-surface-area, SiO2 supported polyimide carbon aerogel microspheres: electrochemical application</title><author>Liu, Shi ; Ji, Jianqi ; Wang, Yixing ; Yan, Cenqi ; Bai, Huitao ; Qin, Jiaqiang ; Cheng, Pei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-d363t-5b3580056732a3b4fd078c83c9fe57701d665258e9b9bbb3522258a838650a243</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Aerogels</topic><topic>Capacitance</topic><topic>Carbon</topic><topic>carbon aerogel microspheres</topic><topic>Electrochemical analysis</topic><topic>Electrode materials</topic><topic>Electrodes</topic><topic>Electron microscopes</topic><topic>Microspheres</topic><topic>Polyamide resins</topic><topic>polyimide</topic><topic>reverse emulsion</topic><topic>Silicon dioxide</topic><topic>SiO</topic><topic>SiO2</topic><topic>Specific surface</topic><topic>supercapacitors</topic><topic>Surface area</topic><topic>Tetraethyl orthosilicate</topic><topic>Workstations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Shi</creatorcontrib><creatorcontrib>Ji, Jianqi</creatorcontrib><creatorcontrib>Wang, Yixing</creatorcontrib><creatorcontrib>Yan, Cenqi</creatorcontrib><creatorcontrib>Bai, Huitao</creatorcontrib><creatorcontrib>Qin, Jiaqiang</creatorcontrib><creatorcontrib>Cheng, Pei</creatorcontrib><collection>Institute of Physics Open Access Journal Titles</collection><collection>IOPscience (Open Access)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>JPhys materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Shi</au><au>Ji, Jianqi</au><au>Wang, Yixing</au><au>Yan, Cenqi</au><au>Bai, Huitao</au><au>Qin, Jiaqiang</au><au>Cheng, Pei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fabrication of high-surface-area, SiO2 supported polyimide carbon aerogel microspheres: electrochemical application</atitle><jtitle>JPhys materials</jtitle><stitle>JPhysMaterials</stitle><addtitle>J. Phys. Mater</addtitle><date>2023-01-01</date><risdate>2023</risdate><volume>6</volume><issue>1</issue><spage>015002</spage><pages>015002-</pages><eissn>2515-7639</eissn><abstract>A series of polyimide (PI)/SiO2 aerogel microspheres were prepared by using polyamide acid salt and hydrolyzed tetraethyl orthosilicate based on the reverse-phase emulsion method. Then, PI/SiO2 aerogel microspheres were carbonized and etched to obtain carbon aerogel microspheres (CAMs). Scanning electron microscope, transmission electron microscope and nitrogen isothermal adsorption were used to characterize the micro-morphology and pore structure of the microspheres; and electrochemical workstation was used to test the electrochemical performance of the CAMs. The results showed that CAMs with different pore structures and specific surface area were obtained by adjusting the content of SiO2. Highest specific surface area of 1166.9 m2 g−1 and a total pore volume of 1.2369 cm3 g−1 were achieved at a SiO2 content of 50%. When used as the electrode materials for supercapacitors, these CAMs demonstrated a maximum specific capacitance of 125.1 F g−1 in a three-electrode system and a maximum capacitance of 53.3% at 30 A g−1. This article provides a new strategy for the preparation of CAMs with high specific surface area by using linear PI precursor and SiO2 support skeleton.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/2515-7639/acaa59</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-1012-749X</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Aerogels Capacitance Carbon carbon aerogel microspheres Electrochemical analysis Electrode materials Electrodes Electron microscopes Microspheres Polyamide resins polyimide reverse emulsion Silicon dioxide SiO SiO2 Specific surface supercapacitors Surface area Tetraethyl orthosilicate Workstations |
| title | Fabrication of high-surface-area, SiO2 supported polyimide carbon aerogel microspheres: electrochemical application |
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