Study of potassium intercalated graphite by Raman spectroscopy

In this paper, a study of a graphite intercalation compound by potassium was carried out using Raman spectroscopy. The purpose of the study was to determine the intercalation stage and study the influence of intercalated atoms on the vibrational properties of highly oriented pyrolytic graphite latti...

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Главные авторы:	Ambartsumov, M. G., Амбарцумов, М. Г.
Формат:	Статья
Язык:	Russian
Опубликовано:	Tver State University 2025
Темы:	Raman spectroscopy Highly oriented pyrolytic graphite Alkali metals Intercalation Two- zone method First-principles calculations
Online-ссылка:	https://dspace.ncfu.ru/handle/123456789/29611
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id	ir-123456789-29611
record_format	dspace
spelling	ir-123456789-296112025-02-04T09:18:12Z Study of potassium intercalated graphite by Raman spectroscopy Ambartsumov, M. G. Амбарцумов, М. Г. Raman spectroscopy Highly oriented pyrolytic graphite Alkali metals Intercalation Two- zone method First-principles calculations In this paper, a study of a graphite intercalation compound by potassium was carried out using Raman spectroscopy. The purpose of the study was to determine the intercalation stage and study the influence of intercalated atoms on the vibrational properties of highly oriented pyrolytic graphite lattice. The intercalation of highly oriented pyrolytic graphite by potassium was performed using a two-zone method. Raman spectra were obtained for both pure and intercalated highly oriented pyrolytic graphite. The experiments carried out to identify the synthesized structures showed the formation of sixth stage graphite intercalation compound. Knowledge of the stage of the intercalated graphite compounds is important for its use as a superconducting material, as well as in supercapacitors. In addition, the intercalation stage is a key factor in obtaining graphene by chemical exfoliation of graphite intercalation compound, since the number of graphene layers will directly depend on the intercalation stage. In the obtained Raman spectra, the effect of G-peak splitting is observed, indicating a change in the vibrational properties of the graphite lattice during its intercalation due to the charge transfer from the intercalate to the carbon layers. The value of the transferred charge is determined using first-principles calculations. 2025-02-04T09:17:29Z 2025-02-04T09:17:29Z 2024 Статья Akhmatov, Z. A., Khokonov, A. Kh., Sergeev, I. N., Ambartsumov, M. G. Study of potassium intercalated graphite by Raman spectroscopy // PHYSICAL AND CHEMICAL ASPECTS OF THE STUDY OF CLUSTERS NANOSTRUCTURES AND NANOMATERIALS. - 2024. - 16. - рр. 24 - 32. - DOI: 10.26456/pcascnn/2024.16.024 https://dspace.ncfu.ru/handle/123456789/29611 ru PHYSICAL AND CHEMICAL ASPECTS OF THE STUDY OF CLUSTERS NANOSTRUCTURES AND NANOMATERIALS application/pdf Tver State University
institution	СКФУ
collection	Репозиторий
language	Russian
topic	Raman spectroscopy Highly oriented pyrolytic graphite Alkali metals Intercalation Two- zone method First-principles calculations
spellingShingle	Raman spectroscopy Highly oriented pyrolytic graphite Alkali metals Intercalation Two- zone method First-principles calculations Ambartsumov, M. G. Амбарцумов, М. Г. Study of potassium intercalated graphite by Raman spectroscopy
description	In this paper, a study of a graphite intercalation compound by potassium was carried out using Raman spectroscopy. The purpose of the study was to determine the intercalation stage and study the influence of intercalated atoms on the vibrational properties of highly oriented pyrolytic graphite lattice. The intercalation of highly oriented pyrolytic graphite by potassium was performed using a two-zone method. Raman spectra were obtained for both pure and intercalated highly oriented pyrolytic graphite. The experiments carried out to identify the synthesized structures showed the formation of sixth stage graphite intercalation compound. Knowledge of the stage of the intercalated graphite compounds is important for its use as a superconducting material, as well as in supercapacitors. In addition, the intercalation stage is a key factor in obtaining graphene by chemical exfoliation of graphite intercalation compound, since the number of graphene layers will directly depend on the intercalation stage. In the obtained Raman spectra, the effect of G-peak splitting is observed, indicating a change in the vibrational properties of the graphite lattice during its intercalation due to the charge transfer from the intercalate to the carbon layers. The value of the transferred charge is determined using first-principles calculations.
format	Статья
author	Ambartsumov, M. G. Амбарцумов, М. Г.
author_facet	Ambartsumov, M. G. Амбарцумов, М. Г.
author_sort	Ambartsumov, M. G.
title	Study of potassium intercalated graphite by Raman spectroscopy
title_short	Study of potassium intercalated graphite by Raman spectroscopy
title_full	Study of potassium intercalated graphite by Raman spectroscopy
title_fullStr	Study of potassium intercalated graphite by Raman spectroscopy
title_full_unstemmed	Study of potassium intercalated graphite by Raman spectroscopy
title_sort	study of potassium intercalated graphite by raman spectroscopy
publisher	Tver State University
publishDate	2025
url	https://dspace.ncfu.ru/handle/123456789/29611
work_keys_str_mv	AT ambartsumovmg studyofpotassiumintercalatedgraphitebyramanspectroscopy AT ambarcumovmg studyofpotassiumintercalatedgraphitebyramanspectroscopy
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Study of potassium intercalated graphite by Raman spectroscopy

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