Affordable Access

Publisher Website

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

Authors
Journal
New Carbon Materials
1872-5805
Publisher
Elsevier
Volume
27
Issue
1
Identifiers
DOI: 10.1016/s1872-5805(12)60001-8
Keywords
  • Expanded Graphite
  • Graphite Foil
  • Boron Oxide
  • Oxidation Protection
  • Tensile Strength
Disciplines
  • Chemistry
  • Earth Science

Abstract

Abstract 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.

There are no comments yet on this publication. Be the first to share your thoughts.