Szczegóły publikacji
Opis bibliograficzny
Carbon-iron-sulfur ternary system under elevated temperature and reduced pressure: implications for the catalytic graphitization phenomenon / Sławomir Dyjak, Mateusz Gratzke, Iwona Wyrębska, Artur BŁACHOWSKI, Youn-Bae Kang, Kamil Sobczak, Waldemar Kaszuwara, Wojciech Kiciński // Carbon ; ISSN 0008-6223 . — 2026 — vol. 248 art. no. 121141, s. 1–16. — Bibliogr. s. 15–16, Abstr. — Publikacja dostępna online od: 2025-12-08
Autorzy (8)
- Dyjak Sławomir
- Gratzke Mateusz
- Wyrębska Iwona
- AGHBłachowski Artur
- Kang Youn-Bae
- Sobczak Kamil
- Kaszuwara Waldemar
- Kiciński Wojciech
Dane bibliometryczne
| ID BaDAP | 165599 |
|---|---|
| Data dodania do BaDAP | 2026-02-03 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.carbon.2025.121141 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Carbon |
Abstract
Non-graphitizable carbonaceous materials containing iron and sulfur are subjected to pyrolysis at 1150, 1300, and 1450 °C under a dynamic vacuum. Three batches of samples are prepared with initial iron-to-sulfur molar ratios (in the starting mixture of reagents) of 1, 10, and 100. After the vacuum pyrolysis, iron-based phases are removed from the resulting carbon materials by high-temperature heat treatment with Cl2, followed by H2. This research examines how the initial sulfur content in the carbon-rich carbon-iron-sulfur (C–Fe–S) ternary system influences the graphitization process within a moderate temperature range, particularly focusing on the effectiveness of the catalytic graphitization. A key observation is that the system with the highest sulfur content exhibits the greatest extent of graphitization. In contrast, the system with the lowest sulfur content shows the poorest conversion yield to the partly graphitized carbon phase. This study provides evidence and elucidates why sulfur-rich C–Fe–S mixtures produce greater amounts of graphitized phases than S-deficient mixtures, irrespective of the vacuum pyrolysis temperature.
