Improvement of the oxidation stability and the mechanical properties of flexible graphite foil by boron oxide impregnation

Autor:	A.A. Serdan, G. Van Tendeloo, S.G. Ionov, Vladimir A. Morozov, D.V. Savchenko
Rok vydání:	2012
Předmět:	Materials science Scanning electron microscope Graphene Physics Materials Science (miscellaneous) General Chemistry law.invention Thermogravimetry X-ray photoelectron spectroscopy law Boron oxide General Materials Science Graphite Composite material FOIL method Graphene oxide paper
Zdroj:	New carbon materials
ISSN:	1872-5805
DOI:	10.1016/s1872-5805(12)60001-8
Popis:	Flexible graphite foil produced by rolling expanded graphite impregnated with boron oxide was analyzed by laser mass spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy and thermogravimetry. It was shown that the modification of the graphite foil by boron oxide increases the onset temperature of oxidation by ∼ 150 °C. Impregnation of less than 2 mass% boron oxide also increased the tensile strength of the materials. The observed improvement was attributed to the blocking of active sites by boron oxide, which is probably chemically bonded to the edges of graphene sheets in expanded graphite particles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90dc3a5b5bfd39d082bfff7322ff5dd2 https://doi.org/10.1016/s1872-5805(12)60001-8 Zobrazit plný text záznamu Full Text from ScienceDirect