Study of strong interaction between Pt and TiO2 under oxidizing atmosphere

The strong interaction between Pt and TiO2 under oxidizing atmosphere was studied by means of X-ray photoelectron spectroscopy (XPS) and Ar+ sputtering test. The results obtained show that under oxidizing atmosphere Pt0 atoms can thermally diffuse into TiO2 lattice and be oxidized to Pt2+ to substit...

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Veröffentlicht in:	Applied surface science 2005-08, Vol.250 (1-4), p.29-34
Hauptverfasser:	Zhang, Min, Jin, Zhensheng, Zhang, Zhijun, Dang, Hongxin
Format:	Artikel
Sprache:	eng
Schlagworte:	Ar ion sputtering Condensed matter: structure, mechanical and thermal properties Diffusion interface formation Exact sciences and technology Physics Pt–TiO2 strong interaction Solid surfaces and solid-solid interfaces Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties) XPS
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Beschreibung
Zusammenfassung:	The strong interaction between Pt and TiO2 under oxidizing atmosphere was studied by means of X-ray photoelectron spectroscopy (XPS) and Ar+ sputtering test. The results obtained show that under oxidizing atmosphere Pt0 atoms can thermally diffuse into TiO2 lattice and be oxidized to Pt2+ to substitute for Ti4+ or form the interstitial ions at 673K.
ISSN:	0169-4332 1873-5584
DOI:	10.1016/j.apsusc.2004.12.032