Thermal reduction of graphene oxide: How temperature influences purity
Among various methods used for the reduction of graphene oxide (GO) into a purer form of graphene, the thermal reduction method provides a simpler, safer, and economic alternative, compared to other techniques. Thermal reduction of GO causes significant weight loss and volume expansion of the materi...
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| Veröffentlicht in: | Journal of materials research 2018-12, Vol.33 (23), p.4113-4122 |
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| container_title | Journal of materials research |
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| creator | Sengupta, Iman Chakraborty, Samarshi Talukdar, Monikangkana Pal, Surjya K. Chakraborty, Sudipto |
| description | Among various methods used for the reduction of graphene oxide (GO) into a purer form of graphene, the thermal reduction method provides a simpler, safer, and economic alternative, compared to other techniques. Thermal reduction of GO causes significant weight loss and volume expansion of the material. Current work investigates the onset temperature where reduction in terms of exfoliation takes place, which is determined to be 325 °C at standard atmospheric pressure. Reduction temperature plays the most crucial role as it controls the quality of reduced graphene oxide in terms of weight percentage of carbon and lattice defect. The study leads to achieving highest content with a minimum defect in the graphene lattice at the optimum temperature, which is found to be 350 °C at standard atmospheric pressure. The thermal reduction process has been analyzed with the help of Fourier transform infrared spectroscopy, thermogravimetric analysis, and thermal degradation kinetics. From thermal degradation kinetics of GO, the rate of reaction has been found to be independent of concentration and is a sole function of temperature. |
| doi_str_mv | 10.1557/jmr.2018.338 |
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Thermal reduction of GO causes significant weight loss and volume expansion of the material. Current work investigates the onset temperature where reduction in terms of exfoliation takes place, which is determined to be 325 °C at standard atmospheric pressure. Reduction temperature plays the most crucial role as it controls the quality of reduced graphene oxide in terms of weight percentage of carbon and lattice defect. The study leads to achieving highest content with a minimum defect in the graphene lattice at the optimum temperature, which is found to be 350 °C at standard atmospheric pressure. The thermal reduction process has been analyzed with the help of Fourier transform infrared spectroscopy, thermogravimetric analysis, and thermal degradation kinetics. 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Mater. Res</addtitle><description>Among various methods used for the reduction of graphene oxide (GO) into a purer form of graphene, the thermal reduction method provides a simpler, safer, and economic alternative, compared to other techniques. Thermal reduction of GO causes significant weight loss and volume expansion of the material. Current work investigates the onset temperature where reduction in terms of exfoliation takes place, which is determined to be 325 °C at standard atmospheric pressure. Reduction temperature plays the most crucial role as it controls the quality of reduced graphene oxide in terms of weight percentage of carbon and lattice defect. The study leads to achieving highest content with a minimum defect in the graphene lattice at the optimum temperature, which is found to be 350 °C at standard atmospheric pressure. The thermal reduction process has been analyzed with the help of Fourier transform infrared spectroscopy, thermogravimetric analysis, and thermal degradation kinetics. From thermal degradation kinetics of GO, the rate of reaction has been found to be independent of concentration and is a sole function of temperature.</description><subject>Annealing</subject><subject>Applied and Technical Physics</subject><subject>Atmospheric pressure</subject><subject>Biomaterials</subject><subject>Carbon</subject><subject>Chemical vapor deposition</subject><subject>Crystal defects</subject><subject>Defects</subject><subject>Fourier transforms</subject><subject>Graphene</subject><subject>Graphite</subject><subject>Infrared analysis</subject><subject>Inorganic Chemistry</subject><subject>Materials Engineering</subject><subject>Materials research</subject><subject>Materials Science</subject><subject>Microwave heating</subject><subject>Nanocomposites</subject><subject>Nanotechnology</subject><subject>Physical properties</subject><subject>Potassium</subject><subject>Reaction kinetics</subject><subject>Researchers</subject><subject>Sulfuric acid</subject><subject>Temperature</subject><subject>Thermal degradation</subject><subject>Thermal reduction</subject><subject>Thermogravimetric analysis</subject><subject>Weight loss</subject><issn>0884-2914</issn><issn>2044-5326</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqFkM1KAzEURoMoWKs7HyDg1hlvkpkk406KtULBTV2HNHOnndL5MZlBfXtTWnAlru7mfOfCIeSWQcryXD3sGp9yYDoVQp-RCYcsS3LB5TmZgNZZwguWXZKrEHYALAeVTch8tUXf2D31WI5uqLuWdhXdeNtvsUXafdUlPtJF90kHbHr0dhg90rqt9iO2DgPtR18P39fkorL7gDenOyXv8-fVbJEs315eZ0_LxAmlhkRlDJmzKLSV60IoEEJqYFyCdVKjLqVwoAvHZFEKW6qSr5V0SkGccBAopuTu6O199zFiGMyuG30bXxoeE2gOikGk7o-U810IHivT-7qx_tswMIdSJpYyh1Imlop4csRDxNoN-l_pH3x60ttm7etyg_8MfgDXuHms</recordid><startdate>20181214</startdate><enddate>20181214</enddate><creator>Sengupta, Iman</creator><creator>Chakraborty, Samarshi</creator><creator>Talukdar, Monikangkana</creator><creator>Pal, Surjya K.</creator><creator>Chakraborty, Sudipto</creator><general>Cambridge University Press</general><general>Springer International Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>0U~</scope><scope>1-H</scope><scope>3V.</scope><scope>7SR</scope><scope>7WY</scope><scope>7WZ</scope><scope>7XB</scope><scope>87Z</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8FL</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FRNLG</scope><scope>F~G</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>K60</scope><scope>K6~</scope><scope>KB.</scope><scope>L.-</scope><scope>L.0</scope><scope>M0C</scope><scope>PDBOC</scope><scope>PQBIZ</scope><scope>PQBZA</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>S0W</scope><orcidid>https://orcid.org/0000-0002-6156-2985</orcidid></search><sort><creationdate>20181214</creationdate><title>Thermal reduction of graphene oxide: How temperature influences purity</title><author>Sengupta, Iman ; 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The study leads to achieving highest content with a minimum defect in the graphene lattice at the optimum temperature, which is found to be 350 °C at standard atmospheric pressure. The thermal reduction process has been analyzed with the help of Fourier transform infrared spectroscopy, thermogravimetric analysis, and thermal degradation kinetics. From thermal degradation kinetics of GO, the rate of reaction has been found to be independent of concentration and is a sole function of temperature.</abstract><cop>New York, USA</cop><pub>Cambridge University Press</pub><doi>10.1557/jmr.2018.338</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-6156-2985</orcidid></addata></record> |
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| subjects | Annealing Applied and Technical Physics Atmospheric pressure Biomaterials Carbon Chemical vapor deposition Crystal defects Defects Fourier transforms Graphene Graphite Infrared analysis Inorganic Chemistry Materials Engineering Materials research Materials Science Microwave heating Nanocomposites Nanotechnology Physical properties Potassium Reaction kinetics Researchers Sulfuric acid Temperature Thermal degradation Thermal reduction Thermogravimetric analysis Weight loss |
| title | Thermal reduction of graphene oxide: How temperature influences purity |
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