Scientific Reports (Nov 2021)

Defluorination and adsorption of tetrafluoroethylene (TFE) on TiO2(110) and Cr2O3(0001)

  • Jessiel Siaron Gueriba,
  • Nur Ellina Annisa Salehuddin,
  • Wilson Agerico Diño,
  • Kiminori Washika,
  • Hiroshi Nakamura,
  • Tatsumi Kawafuchi

DOI
https://doi.org/10.1038/s41598-021-00952-w
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 7

Abstract

Read online

Abstract Here, we show that metal oxide surfaces catalyze the formation of intermediate defluorinated tetrafluoroethylene (TFE) radicals, resulting in enhanced binding on the corresponding metal oxide surfaces. We attribute the preferential adsorption and radical formation of TFE on Cr2O3(0001) relative to TiO2(110) to the low oxygen coordination of Cr surface atoms. This hints at a possible dependence of the TFE binding strength to the surface stoichiometry of metal-oxide surfaces.