Highly Porous Expanded Graphite: Thermal Shock vs. Programmable Heating
Highly porous expanded graphite was synthesized by the programmable heating technique using heating with a constant rate (20 °C/min) from room temperature to 400–700 °C. The samples obtained were analyzed by scanning electron microscopy, energy-dispersive spectroscopy, low-temperature nitrogen adsor...
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| Online Access: | https://www.mdpi.com/1996-1944/14/24/7687 |
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| author | Alexander G. Bannov Arina V. Ukhina Evgenii A. Maksimovskii Igor Yu. Prosanov Artyom A. Shestakov Nikita I. Lapekin Nikita S. Lazarenko Pavel B. Kurmashov Maksim V. Popov |
| author_facet | Alexander G. Bannov Arina V. Ukhina Evgenii A. Maksimovskii Igor Yu. Prosanov Artyom A. Shestakov Nikita I. Lapekin Nikita S. Lazarenko Pavel B. Kurmashov Maksim V. Popov |
| author_sort | Alexander G. Bannov |
| collection | DOAJ |
| description | Highly porous expanded graphite was synthesized by the programmable heating technique using heating with a constant rate (20 °C/min) from room temperature to 400–700 °C. The samples obtained were analyzed by scanning electron microscopy, energy-dispersive spectroscopy, low-temperature nitrogen adsorption, X-ray photoelectron spectroscopy, Raman spectroscopy, thermogravimetry, and differential scanning calorimetry. A comparison between programmable heating and thermal shock as methods of producing expanded graphite showed efficiency of the first one at a temperature 400 °C, and the surface area reached 699 and 184 m<sup>2</sup>/g, respectively. The proposed technique made it possible to obtain a relatively higher yield of expanded graphite (78–90%) from intercalated graphite. The experiments showed the advantages of programmable heating in terms of its flexibility and the possibility to manage the textural properties, yield, disorder degree, and bulk density of expanded graphite. |
| first_indexed | 2024-03-10T03:39:44Z |
| format | Article |
| id | doaj.art-100c4d3b3273461aab2ccde950f092f6 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T03:39:44Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-100c4d3b3273461aab2ccde950f092f62023-11-23T09:21:32ZengMDPI AGMaterials1996-19442021-12-011424768710.3390/ma14247687Highly Porous Expanded Graphite: Thermal Shock vs. Programmable HeatingAlexander G. Bannov0Arina V. Ukhina1Evgenii A. Maksimovskii2Igor Yu. Prosanov3Artyom A. Shestakov4Nikita I. Lapekin5Nikita S. Lazarenko6Pavel B. Kurmashov7Maksim V. Popov8Department of Chemistry and Chemical Engineering, Faculty of Mechanical Engineering, Novosibirsk State Technical University, 630092 Novosibirsk, RussiaInstitute of Chemistry of Solid State and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, 630092 Novosibirsk, RussiaInstitute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, RussiaInstitute of Chemistry of Solid State and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, 630092 Novosibirsk, RussiaDepartment of Chemistry and Chemical Engineering, Faculty of Mechanical Engineering, Novosibirsk State Technical University, 630092 Novosibirsk, RussiaDepartment of Chemistry and Chemical Engineering, Faculty of Mechanical Engineering, Novosibirsk State Technical University, 630092 Novosibirsk, RussiaDepartment of Chemistry and Chemical Engineering, Faculty of Mechanical Engineering, Novosibirsk State Technical University, 630092 Novosibirsk, RussiaDepartment of Chemistry and Chemical Engineering, Faculty of Mechanical Engineering, Novosibirsk State Technical University, 630092 Novosibirsk, RussiaDepartment of Chemistry and Chemical Engineering, Faculty of Mechanical Engineering, Novosibirsk State Technical University, 630092 Novosibirsk, RussiaHighly porous expanded graphite was synthesized by the programmable heating technique using heating with a constant rate (20 °C/min) from room temperature to 400–700 °C. The samples obtained were analyzed by scanning electron microscopy, energy-dispersive spectroscopy, low-temperature nitrogen adsorption, X-ray photoelectron spectroscopy, Raman spectroscopy, thermogravimetry, and differential scanning calorimetry. A comparison between programmable heating and thermal shock as methods of producing expanded graphite showed efficiency of the first one at a temperature 400 °C, and the surface area reached 699 and 184 m<sup>2</sup>/g, respectively. The proposed technique made it possible to obtain a relatively higher yield of expanded graphite (78–90%) from intercalated graphite. The experiments showed the advantages of programmable heating in terms of its flexibility and the possibility to manage the textural properties, yield, disorder degree, and bulk density of expanded graphite.https://www.mdpi.com/1996-1944/14/24/7687expanded graphitetextural characteristicsporositysurface areathermal shockgraphite |
| spellingShingle | Alexander G. Bannov Arina V. Ukhina Evgenii A. Maksimovskii Igor Yu. Prosanov Artyom A. Shestakov Nikita I. Lapekin Nikita S. Lazarenko Pavel B. Kurmashov Maksim V. Popov Highly Porous Expanded Graphite: Thermal Shock vs. Programmable Heating Materials expanded graphite textural characteristics porosity surface area thermal shock graphite |
| title | Highly Porous Expanded Graphite: Thermal Shock vs. Programmable Heating |
| title_full | Highly Porous Expanded Graphite: Thermal Shock vs. Programmable Heating |
| title_fullStr | Highly Porous Expanded Graphite: Thermal Shock vs. Programmable Heating |
| title_full_unstemmed | Highly Porous Expanded Graphite: Thermal Shock vs. Programmable Heating |
| title_short | Highly Porous Expanded Graphite: Thermal Shock vs. Programmable Heating |
| title_sort | highly porous expanded graphite thermal shock vs programmable heating |
| topic | expanded graphite textural characteristics porosity surface area thermal shock graphite |
| url | https://www.mdpi.com/1996-1944/14/24/7687 |
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