Skip navigation

Please use this identifier to cite or link to this item:
Title: Self-reduction of the native TiO2(110) surface during cooling after thermal annealing - in-operando investigations
Authors: Rogala, M.
Bihlmayer, G.
Dąbrowski, P.
Rodenbücher, C.
Wrana, D.
Krok, F.
Klusek, Z.
Szot, Krzysztof
Keywords: thermal reduction; TiO2; crystal; spectroscopy
Issue Date: 2019
Citation: "Scientific Reports (Nature Publishing Group)" Vol. 9, art. no 12563, s. 1-9
Abstract: We investigate the thermal reduction of TiO2 in ultra-high vacuum. Contrary to what is usually assumed, we observe that the maximal surface reduction occurs not during the heating, but during the cooling of the sample back to room temperature. We describe the self-reduction, which occurs as a result of differences in the energies of defect formation in the bulk and surface regions. The findings presented are based on X-ray photoelectron spectroscopy carried out in-operando during the heating and cooling steps. The presented conclusions, concerning the course of redox processes, are especially important when considering oxides for resistive switching and neuromorphic applications and also when describing the mechanisms related to the basics of operation of solid oxide fuel cells.
DOI: 10.1038/s41598-019-48837-3
ISSN: 2045-2322
Appears in Collections:Artykuły (WNŚiT)

Files in This Item:
File Description SizeFormat 
Szot_Self-reduction_of_the_native_TiO2(110)_surface_during_cooling.pdf2,89 MBAdobe PDFView/Open
Show full item record

Uznanie Autorstwa 3.0 Polska Creative Commons License Creative Commons