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Interaction of partially graphitized diamond crystals with sulfuric acid Full article

Journal Journal of Thermal Analysis and Calorimetry
ISSN: 1388-6150
Output data Year: 2026, Pages: 1-6 Pages count : 6 DOI: 10.1007/s10973-026-16116-9
Tags Synthetic diamond, Graphitization, Graphite intercalation compounds, Sulfuric acid, Graphite bisulfate, Thermal decomposition
Authors Bokhonov Boris B. 1 , Dudina Dina V. 1,2
Affiliations
1 Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze Str. 18, Novosibirsk, 630090, Russia
2 Lavrentyev Institute of Hydrodynamics SB RAS, Lavrentyev Ave. 15, Novosibirsk, 630090, Russia

Abstract: In the present work, the possibility of forming graphite intercalation compounds by treatment of partially graphitized diamond crystals by sulfuric acid in the presence of an oxidizer was demonstrated. The elemental mapping of the acid-treated crystals showed that sulfur and oxygen were localized in the graphite phase, which formed around the vertices and edges of the crystals. Mass-spectrometry was used to study the stages of thermal decomposition of the synthesized intercalation compound. When the intercalation compound decomposed, the graphitic layers were oxidized by sulfuric acid and SO2 evolved with the maximum on the evolution curve at 250 ℃. The adsorbed water and functional groups present on the graphite surface were eliminated at lower temperatures. The proposed synthesis method can be used for obtaining intercalated graphite-modified diamond, which is promising for applications in electronic devices.
Cite: Bokhonov B.B. , Dudina D.V.
Interaction of partially graphitized diamond crystals with sulfuric acid
Journal of Thermal Analysis and Calorimetry. 2026. P.1-6. DOI: 10.1007/s10973-026-16116-9 WOS Scopus OpenAlex
Dates:
Submitted: Jun 1, 2026
Accepted: Aug 12, 2026
Published online: Aug 24, 2026
Identifiers:
≡ Web of science: WOS:001856530100001
≡ Scopus: 2-s2.0-105048117833
≡ OpenAlex: W7204079392
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