Szczegóły publikacji

Opis bibliograficzny

The role of heteroatoms in iron-assisted graphitization of hard carbons derived from synthetic polymers: the special case of sulfur-doping / Sławomir Dyjak, Iwona Wyrębska, Artur BŁACHOWSKI, Waldemar Kaszuwara, Kamil Sobczak, Marek Polański, Mateusz Gratzke, Wojciech Kiciński // Carbon ; ISSN 0008-6223. — 2024 — vol. 218 art. no. 118717, s. 1-17. — Bibliogr. s. 16-17, Abstr. — Publikacja dostępna online od: 2023-12-08

Autorzy (8)

  • Dyjak Sławomir
  • Wyrębska Iwona
  • AGHBłachowski Artur
  • Kaszuwara Waldemar
  • Sobczak Kamil
  • Polański Marek
  • Gratzke Mateusz
  • Kiciński Wojciech

Słowa kluczowe

non graphitizing carbonpyrolysisgraphitecatalytic graphitizationheteroatom

Dane bibliometryczne

ID BaDAP150920
Data dodania do BaDAP2024-01-10
Tekst źródłowyURL
DOI10.1016/j.carbon.2023.118717
Rok publikacji2024
Typ publikacjiartykuł w czasopiśmie
Otwarty dostęptak
Czasopismo/seriaCarbon

Abstract

Three types of thermosetting heterocyclic phenolic resins (either oxygen-, nitrogen- or sulfur-doped) impregnated with FeCl3 were pyrolyzed in the temperature range of 750–1150 °C to study the influence of heteroatoms on the catalytic graphitization of non-graphitizing carbons. The thermal transformation from disordered to partly graphitized structures is strongly affected by the presence of sulfur and much less by nitrogen with respect to the oxygen-doped precursor. Sulfur totally blocks Fe-assisted catalytic graphitization but only up to a certain temperature. At ⁓1130 °C iron starts to catalyze the conversion of disordered carbon into a partly graphitized phase despite sulfur's presence. Nitrogen exhibits a similar impact to oxygen, and its presence neither significantly hinders nor enhances catalytic graphitization. However, the O-doped polymer is more prone to graphitization than its N-doped counterpart. An extensive discussion concerning sulfur's role in iron-assisted catalytic graphitization is presented herein.