Solution-processable method for producing high-quality reduced graphene oxide displaying ‘self-catalytic healing’
Reduced graphene oxide (rGO) has potential as a mass-producible and cost-effective substitute for graphene, but displays poor crystal quality due to various types of structural defects. Though many attempts have been reported to improve the quality of rGO, most of them require sophisticated equipmen...
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| Veröffentlicht in: | Carbon (New York) 2019-01, Vol.141, p.774-781 |
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| container_title | Carbon (New York) |
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| creator | Lee, Geonhee Jung, Du Won Lee, Wonki Nah, Sanghee Ji, Seulgi Hwang, Jun Yeon Lee, Sun Sook Park, Sungsu Chae, Soo Sang Lee, Jeong-O |
| description | Reduced graphene oxide (rGO) has potential as a mass-producible and cost-effective substitute for graphene, but displays poor crystal quality due to various types of structural defects. Though many attempts have been reported to improve the quality of rGO, most of them require sophisticated equipment or severe conditions such as toxic chemicals, high temperature, and electron beam or plasma treatment in ultra-high vacuum (UHV) conditions. Here, we report a mild and simple solution-based healing method for obtaining high-quality rGO, with this method involving the use of a simple camera flash light treatment and the nontoxic chemicals l-ascorbic acid and ethanol. Exposing a GO solution containing l-ascorbic acid and ethanol to the flash light irradiation for a short amount of time ( |
| doi_str_mv | 10.1016/j.carbon.2018.09.038 |
| format | Article |
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[Display omitted]</description><identifier>ISSN: 0008-6223</identifier><identifier>EISSN: 1873-3891</identifier><identifier>DOI: 10.1016/j.carbon.2018.09.038</identifier><language>eng</language><publisher>New York: Elsevier Ltd</publisher><subject>Absorption spectra ; Annealing ; Ascorbic acid ; Catalysis ; Catalytic activity ; Chemical composition ; Crystal defects ; Crystal structure ; Electron beams ; Ethanol ; Flash annealing ; Graphene ; Graphene oxide ; Healing ; High temperature ; High vacuum ; Light irradiation ; Metal oxides ; Organic chemistry ; Reduced graphene oxide ; Solution process</subject><ispartof>Carbon (New York), 2019-01, Vol.141, p.774-781</ispartof><rights>2018 Elsevier Ltd</rights><rights>Copyright Elsevier BV Jan 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-471aef2488873abfdb1280dc44cfdf8bd2005657925f6a99c179fd26ea497083</citedby><cites>FETCH-LOGICAL-c334t-471aef2488873abfdb1280dc44cfdf8bd2005657925f6a99c179fd26ea497083</cites><orcidid>0000-0001-8945-3097 ; 0000-0002-7343-4892 ; 0000-0002-3518-5952 ; 0000-0002-2296-974X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.carbon.2018.09.038$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Lee, Geonhee</creatorcontrib><creatorcontrib>Jung, Du Won</creatorcontrib><creatorcontrib>Lee, Wonki</creatorcontrib><creatorcontrib>Nah, Sanghee</creatorcontrib><creatorcontrib>Ji, Seulgi</creatorcontrib><creatorcontrib>Hwang, Jun Yeon</creatorcontrib><creatorcontrib>Lee, Sun Sook</creatorcontrib><creatorcontrib>Park, Sungsu</creatorcontrib><creatorcontrib>Chae, Soo Sang</creatorcontrib><creatorcontrib>Lee, Jeong-O</creatorcontrib><title>Solution-processable method for producing high-quality reduced graphene oxide displaying ‘self-catalytic healing’</title><title>Carbon (New York)</title><description>Reduced graphene oxide (rGO) has potential as a mass-producible and cost-effective substitute for graphene, but displays poor crystal quality due to various types of structural defects. Though many attempts have been reported to improve the quality of rGO, most of them require sophisticated equipment or severe conditions such as toxic chemicals, high temperature, and electron beam or plasma treatment in ultra-high vacuum (UHV) conditions. Here, we report a mild and simple solution-based healing method for obtaining high-quality rGO, with this method involving the use of a simple camera flash light treatment and the nontoxic chemicals l-ascorbic acid and ethanol. Exposing a GO solution containing l-ascorbic acid and ethanol to the flash light irradiation for a short amount of time (<10 min) resulted in the formation of rGO displaying high quality both with respect to its chemical composition and its crystallinity. To elucidate the mechanism of the flash-light-induced healing of rGO, we acquired and analyzed the transient absorption spectrum for the healing reaction by using femtosecond pump-probe spectroscopy; this analysis revealed the photo-catalytic activity of GO by itself to repair chemical and topological defects, and we hence named this process ‘self-catalytic healing’.
[Display omitted]</description><subject>Absorption spectra</subject><subject>Annealing</subject><subject>Ascorbic acid</subject><subject>Catalysis</subject><subject>Catalytic activity</subject><subject>Chemical composition</subject><subject>Crystal defects</subject><subject>Crystal structure</subject><subject>Electron beams</subject><subject>Ethanol</subject><subject>Flash annealing</subject><subject>Graphene</subject><subject>Graphene oxide</subject><subject>Healing</subject><subject>High temperature</subject><subject>High vacuum</subject><subject>Light irradiation</subject><subject>Metal oxides</subject><subject>Organic chemistry</subject><subject>Reduced graphene oxide</subject><subject>Solution process</subject><issn>0008-6223</issn><issn>1873-3891</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kM1qGzEUhUVpoK6TN-hC0PVM9ecZaVMoIU0Khi7ivdBIVx6Z8ciWZkq8y2Mkr-cnqYy77upyL-ecy_kQ-kJJTQltvu1qa1IXx5oRKmuiasLlB7SgsuUVl4p-RAtCiKwaxvgn9DnnXVmFpGKB5uc4zFOIY3VI0ULOphsA72Hqo8M-JlzObrZh3OI-bPvqOJshTCecoFzB4W0yhx5GwPElOMAu5MNgThf5-fUtw-ArayYznKZgcQ_FO27Pr--36MabIcPdv7lEm58Pm_unav378df9j3VlORdTJVpqwDMhZWliOu86yiRxVgjrnZedY4SsmlWr2Mo3RilLW-Uda8AI1RLJl-jrNbaUOM6QJ72LcxrLR83oSinOGVFFJa4qm2LOCbw-pLA36aQp0Re-eqevfPWFryZKF77F9v1qg1LgT4Cksw0wFighgZ20i-H_AX8BjWaKHA</recordid><startdate>201901</startdate><enddate>201901</enddate><creator>Lee, Geonhee</creator><creator>Jung, Du Won</creator><creator>Lee, Wonki</creator><creator>Nah, Sanghee</creator><creator>Ji, Seulgi</creator><creator>Hwang, Jun Yeon</creator><creator>Lee, Sun Sook</creator><creator>Park, Sungsu</creator><creator>Chae, Soo Sang</creator><creator>Lee, Jeong-O</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0001-8945-3097</orcidid><orcidid>https://orcid.org/0000-0002-7343-4892</orcidid><orcidid>https://orcid.org/0000-0002-3518-5952</orcidid><orcidid>https://orcid.org/0000-0002-2296-974X</orcidid></search><sort><creationdate>201901</creationdate><title>Solution-processable method for producing high-quality reduced graphene oxide displaying ‘self-catalytic healing’</title><author>Lee, Geonhee ; Jung, Du Won ; Lee, Wonki ; Nah, Sanghee ; Ji, Seulgi ; Hwang, Jun Yeon ; Lee, Sun Sook ; Park, Sungsu ; Chae, Soo Sang ; Lee, Jeong-O</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-471aef2488873abfdb1280dc44cfdf8bd2005657925f6a99c179fd26ea497083</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Absorption spectra</topic><topic>Annealing</topic><topic>Ascorbic acid</topic><topic>Catalysis</topic><topic>Catalytic activity</topic><topic>Chemical composition</topic><topic>Crystal defects</topic><topic>Crystal structure</topic><topic>Electron beams</topic><topic>Ethanol</topic><topic>Flash annealing</topic><topic>Graphene</topic><topic>Graphene oxide</topic><topic>Healing</topic><topic>High temperature</topic><topic>High vacuum</topic><topic>Light irradiation</topic><topic>Metal oxides</topic><topic>Organic chemistry</topic><topic>Reduced graphene oxide</topic><topic>Solution process</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lee, Geonhee</creatorcontrib><creatorcontrib>Jung, Du Won</creatorcontrib><creatorcontrib>Lee, Wonki</creatorcontrib><creatorcontrib>Nah, Sanghee</creatorcontrib><creatorcontrib>Ji, Seulgi</creatorcontrib><creatorcontrib>Hwang, Jun Yeon</creatorcontrib><creatorcontrib>Lee, Sun Sook</creatorcontrib><creatorcontrib>Park, Sungsu</creatorcontrib><creatorcontrib>Chae, Soo Sang</creatorcontrib><creatorcontrib>Lee, Jeong-O</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Carbon (New York)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lee, Geonhee</au><au>Jung, Du Won</au><au>Lee, Wonki</au><au>Nah, Sanghee</au><au>Ji, Seulgi</au><au>Hwang, Jun Yeon</au><au>Lee, Sun Sook</au><au>Park, Sungsu</au><au>Chae, Soo Sang</au><au>Lee, Jeong-O</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Solution-processable method for producing high-quality reduced graphene oxide displaying ‘self-catalytic healing’</atitle><jtitle>Carbon (New York)</jtitle><date>2019-01</date><risdate>2019</risdate><volume>141</volume><spage>774</spage><epage>781</epage><pages>774-781</pages><issn>0008-6223</issn><eissn>1873-3891</eissn><abstract>Reduced graphene oxide (rGO) has potential as a mass-producible and cost-effective substitute for graphene, but displays poor crystal quality due to various types of structural defects. Though many attempts have been reported to improve the quality of rGO, most of them require sophisticated equipment or severe conditions such as toxic chemicals, high temperature, and electron beam or plasma treatment in ultra-high vacuum (UHV) conditions. Here, we report a mild and simple solution-based healing method for obtaining high-quality rGO, with this method involving the use of a simple camera flash light treatment and the nontoxic chemicals l-ascorbic acid and ethanol. Exposing a GO solution containing l-ascorbic acid and ethanol to the flash light irradiation for a short amount of time (<10 min) resulted in the formation of rGO displaying high quality both with respect to its chemical composition and its crystallinity. To elucidate the mechanism of the flash-light-induced healing of rGO, we acquired and analyzed the transient absorption spectrum for the healing reaction by using femtosecond pump-probe spectroscopy; this analysis revealed the photo-catalytic activity of GO by itself to repair chemical and topological defects, and we hence named this process ‘self-catalytic healing’.
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Absorption spectra Annealing Ascorbic acid Catalysis Catalytic activity Chemical composition Crystal defects Crystal structure Electron beams Ethanol Flash annealing Graphene Graphene oxide Healing High temperature High vacuum Light irradiation Metal oxides Organic chemistry Reduced graphene oxide Solution process |
| title | Solution-processable method for producing high-quality reduced graphene oxide displaying ‘self-catalytic healing’ |
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