002314718 001__ 2314718
002314718 005__ 20241001211715.0
002314718 035__ $$9AIS.FOUNDATION.EXPERIMENTS$$aAIS.FOUNDATION.EXPERIMENTS.IS653
002314718 041__ $$aeng
002314718 245__ $$aHyperfine interactions in hydrogenated TiO${_2}$ thin films and powders for photocatalytic reactions
002314718 269__ $$c2018-03-07
002314718 520__ $$aTiO${_2}$ is one of the most promising materials nowadays for photo catalytic applications. With the help of additional hydrogenation its catalytic efficiency can be significantly improved. It was observed that it was the near-surface defects induced by the “mild” hydrogenation of the TiO${_2}$:H that play the key role in improving the photocatalytic process. Therefore, understanding the defect formation phenomena on a local atomic level is most desirable and an essential step towards realizing a stable, catalytic efficiency of the system through systematic defect engineering. Our project aims to take advantage of the local atomic probing strengths of Mössbauer spectroscopy and Time Dependent $\gamma\gamma$-Angular Correlation Spectroscopy, to investigate the local defects in the nanostructured TiO${_2}$:H thin films at the atomic scale and to correlate our results with the photo catalytic efficiency of hydrogenated TiO${_2}$ . The defects to be investigated would be systematically controlled by the thin film preparation parameters, such as synthesis and post-hydrogen plasma treatment temperatures, as well as in-situ measurement temperatures and light-irradiation conditions. From the results we expect important insight into the hydrogenation enhanced catalytic processes and input for future TiO${_2}$:H preparation routes.
002314718 693__ $$eIS653
002314718 693__ $$aCERN ISOLDE
002314718 710__ $$gISOLDE
002314718 905__ $$pZyabkin, D
002314718 905__ $$pSchell, J
002314718 903__ $$d2018-04-20$$sCompleted
002314718 913__ $$pINTC-P-535$$uCERN-INTC-2018-004$$w2299601
002314718 960__ $$a50
002314718 963__ $$aPUBLIC
002314718 980__ $$aGREYBOOK