High-temperature fire resistance and self-extinguishing behavior of cellular graphene

Šilhavík, Martin; Kumar, Prabhat; Zafar, Zahid Ali; Král, Robert; Zemenová, Petra; Falvey, Alexandra; Jiříček, Petr; Houdková, Jana; Červenka, Jiří

doi:https://dx.doi.org/10.1021/acsnano.2c09076

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, ORCID}
Number of authors	9
Source Title	ACS Nano. - : American Chemical Society - ISSN 1936-0851 Roč. 16, č. 11 (2022), s. 19403-19411
Number 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	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