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

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作者：
Jessiel Siaron Gueriba
Nur Ellina Annisa Salehuddin
Wilson Agerico Diño
Kiminori Washika
Hiroshi Nakamura
Tatsumi Kawafuchi
机构：
[1] Osaka University,Department of Applied Physics
[2] De La Salle University,Department of Physics
[3] Osaka University,Institute of Laser Engineering
[4] Universiti Kebangsaan Malaysia,Department of Chemical Sciences, Faculty of Science and Technology
[5] Osaka University,Center for Atomic and Molecular Technologies
[6] Hirotec Co.,Laser Technology Laboratory
[7] Ltd,Research and Development Division, Technology Development Department
[8] Charmant Inc.,undefined
来源：
Scientific Reports | / 11卷
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摘要：
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.
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