Number of the records: 1
High-temperature fire resistance and self-extinguishing behavior of cellular graphene
- 1.
SYSNO ASEP 0566245 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title High-temperature fire resistance and self-extinguishing behavior of cellular graphene Author(s) Šilhavík, Martin (FZU-D) ORCID
Kumar, Prabhat (FZU-D) ORCID
Zafar, Zahid Ali (FZU-D) ORCID
Král, Robert (FZU-D) RID, ORCID
Zemenová, Petra (FZU-D) RID, ORCID
Falvey, Alexandra (FZU-D)
Jiříček, Petr (FZU-D) RID, ORCID, SAI
Houdková, Jana (FZU-D) RID, ORCID
Červenka, Jiří (FZU-D) RID, ORCIDNumber of authors 9 Source Title ACS Nano. - : American Chemical Society - ISSN 1936-0851
Roč. 16, č. 11 (2022), s. 19403-19411Number of pages 9 s. Language eng - English Country US - United States Keywords graphene ; fire ; high-temperature ; flame retardant ; self-extinguishing ; cellular ; defects Subject RIV JJ - Other Materials OECD category Nano-materials (production and properties) R&D Projects EF16_026/0008382 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000885523000001 EID SCOPUS 85141956689 DOI https://doi.org/10.1021/acsnano.2c09076 Annotation The ability to protect materials from fire is vital to many industrial applications and life safety systems. In this study, we demonstrate that a simple change of the microstructure can significantly boost the fire resistance of an atomically thin material well above its oxidation stability temperature. We show that free-standing graphene layers arranged in a 3D cellular network exhibit completely different flammability and combustion rates from a graphene layer placed on a substrate. Covalently cross-linked cellular graphene aerogels can resist flames in air up to 1500 °C for a minute without degrading their structure or properties. Raman spectroscopy, XPS, and thermogravimetric studies reveal that the exceptional fire-retardant and self-extinguishing properties of cellular graphene originate from the ability to prevent carbonyl defect formation and capture nonflammable carbon dioxide gas in the pores. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://doi.org/10.1021/acsnano.2c09076
Number of the records: 1