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XPS study of carbon in electrochemical reduction products of poly(tetrafluoroethylene) by Ladislav Kavan; Zdeněk Bastl; František P. Dousek; Jiří Jansta is a Materials Science article available to read on EtoBox.

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XPS spectra of reaction products of polyttetrafluoroethylene) with lithium amalgam were studied. The primary reaction product is a mixture of LiF and elementary carbon in the sp-state in a molar ratio of ?: I. This carbon is very reactive, among others also with respect to air oxidation at room temperature leading to the formation of surface oxides with a well-defined chemical shift of the C Is photoemission band, which can be attributed to COOH groups. The binding energy of Is electrons in C atoms of the basic skeleton hidden in LiF i5 markedly higher than with other known modifications of carbon. The carbonaceous materials formed by the leaching out of LiF with water. or by the removal of LiF by melting, contain, after air oxidation, various types of surface oxides. The binding energy of C Is photoelectrons in the resulting skeletons is comparable with that of other carbonaceous materials.

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Author

Ladislav Kavan; Zdeněk Bastl; František P. Dousek; Jiří Jansta

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0008-6223)

Published

1984

Language

EN

Field

Materials Science (Physical Sciences)