Модификация графена с использованием реакции циклоприсоединения аринов для создания высокоемкостных электрохимических материалов
| Parent link: | Перспективы развития фундаментальных наук=Prospects of Fundamental Sciences Development: сборник научных трудов XVIII Международной конференции студентов, аспирантов и молодых ученых, г. Томск, 27-30 апреля 2021 г./ Национальный исследовательский Томский политехнический университет (ТПУ) ; под ред. И. А. Курзиной, Г. А. Вороновой.— , 2021 Т. 2 : Химия.— 2021.— [С. 232-234] |
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| Yhteenveto: | Заглавие с экрана Covalent modification of graphene-based materials can be considered as one of the most promising methods for tailoring their electrochemical properties and extending their application as electrode materials for supercapacitors. In this contribution, we report a facile and mild approach for the covalent functionalization of reduced graphene oxide (rGO) via aryne cycloaddition using pseudocyclic iodoxoborole as an aryne source. The structure and chemical composition of the functionalized rGO (f-rGO) were assessed by Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), ultraviolet-visible (UV-vis) absorption spectrophotometry, Raman spectroscopy and X-ray photoelectron spectroscopy (XPS), which revealed the negligible influence of covalent modification on the rGO structure. Transmission electron microscopy (TEM) imaging showed an increase of the interlayer distance from 0.38 to 0.46 nm upon functionalization. The electrochemical performance of f-rGO material was studied by cyclic voltammetry (CV), galvanostatic chargedischarge (GCD) and electrochemical impedance spectroscopy (EIS) techniques in 2 M KOH aqueous solution as the electrolyte. Under optimized conditions, the f-rGO displayed a high specific capacitance of 297 F g-1 at a current density of 1 A g-1, which is much higher than that of unmodified rGO (170 F g-1 at 1 A g-1). The results obtained in the present study highlight the importance of graphene functionalization as an effective route to fabricate rGO-based materials with enhanced properties in energy storage devices. |
| Kieli: | venäjä |
| Julkaistu: |
2021
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| Aiheet: | |
| Linkit: | http://earchive.tpu.ru/handle/11683/68314 |
| Aineistotyyppi: | Elektroninen Kirjan osa |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=633358 |
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| 200 | 1 | |a Модификация графена с использованием реакции циклоприсоединения аринов для создания высокоемкостных электрохимических материалов |d Aryne cycloaddition reaction as a facile and mild modification method for design of electrode materials for high-performance symmetric supercapacitor |f Е. В. Свиридова |g науч. рук. П. С. Постников | |
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| 300 | |a Заглавие с экрана | ||
| 320 | |a [Библиогр.: с. 234 (3 назв.)] | ||
| 330 | |a Covalent modification of graphene-based materials can be considered as one of the most promising methods for tailoring their electrochemical properties and extending their application as electrode materials for supercapacitors. In this contribution, we report a facile and mild approach for the covalent functionalization of reduced graphene oxide (rGO) via aryne cycloaddition using pseudocyclic iodoxoborole as an aryne source. The structure and chemical composition of the functionalized rGO (f-rGO) were assessed by Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), ultraviolet-visible (UV-vis) absorption spectrophotometry, Raman spectroscopy and X-ray photoelectron spectroscopy (XPS), which revealed the negligible influence of covalent modification on the rGO structure. Transmission electron microscopy (TEM) imaging showed an increase of the interlayer distance from 0.38 to 0.46 nm upon functionalization. The electrochemical performance of f-rGO material was studied by cyclic voltammetry (CV), galvanostatic chargedischarge (GCD) and electrochemical impedance spectroscopy (EIS) techniques in 2 M KOH aqueous solution as the electrolyte. Under optimized conditions, the f-rGO displayed a high specific capacitance of 297 F g-1 at a current density of 1 A g-1, which is much higher than that of unmodified rGO (170 F g-1 at 1 A g-1). The results obtained in the present study highlight the importance of graphene functionalization as an effective route to fabricate rGO-based materials with enhanced properties in energy storage devices. | ||
| 461 | 1 | |0 (RuTPU)RU\TPU\conf\35054 |t Перспективы развития фундаментальных наук |l Prospects of Fundamental Sciences Development |o сборник научных трудов XVIII Международной конференции студентов, аспирантов и молодых ученых, г. Томск, 27-30 апреля 2021 г. |o в 7 т. |f Национальный исследовательский Томский политехнический университет (ТПУ) ; под ред. И. А. Курзиной, Г. А. Вороновой |d 2021 | |
| 463 | 1 | |0 (RuTPU)RU\TPU\conf\35056 |t Т. 2 : Химия |v [С. 232-234] |d 2021 | |
| 510 | 1 | |a Aryne cycloaddition reaction as a facile and mild modification method for design of electrode materials for high-performance symmetric supercapacitor |z eng | |
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| 610 | 1 | |a труды учёных ТПУ | |
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| 610 | 1 | |a наноматериалы | |
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| 700 | 1 | |a Свиридова |b Е. В. |c специалист в области химической технологии, нефтехимии и биотехнологии |c инженер Томского политехнического университета |f 1994- |g Елизавета Витальевна |2 stltpush |3 (RuTPU)RU\TPU\pers\46148 | |
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