Výsledky vyhledávání - "Scheiber, Philipp"

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Reaction of O2 with Subsurface Oxygen Vacancies on TiO2 Anatase (101)

Autor: Setvin, Martin, Aschauer, Ulrich, Scheiber, Philipp, Li, Ye-Fei, Hou, Weiyi, Schmid, Michael, Selloni, Annabella, Diebold, Ulrike

Publikováno v: Science 341, 988 (2013)

Oxygen (O2) adsorbed on metal oxides is important in catalytic oxidation reactions, chemical sensing, and photocatalysis. Strong adsorption requires transfer of negative charge from oxygen vacancies (VOs) or dopants, for example. With scanning tunnel

Externí odkaz: http://arxiv.org/abs/1804.04926

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(Sub)surface mobility of oxygen vacancies at the TiO$_2$ anatase (101) surface

Autor: Scheiber, Philipp, Fidler, Martin, Dulub, Olga, Schmid, Michael, Diebold, Ulrike, Hou, Weiyi, Aschauer, Ulrich, Selloni, Annabella

Publikováno v: Physical Review Letters, 109, 136103 (2012)

Anatase is a metastable polymorph of TiO$_2$. In contrast to the more widely-studied TiO$_2$ rutile, O vacancies (V$_\mathrm O$'s) are not stable at the anatase (101) surface. Low-temperature STM shows that surface V$_\mathrm O$'s, created by electro

Externí odkaz: http://arxiv.org/abs/1804.04398

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Observation and destruction of an elusive adsorbate with STM: O$_2$/TiO$_2$

Autor: Scheiber, Philipp, Riss, Alexander, Schmid, Michael, Varga, Peter, Diebold, Ulrike

Publikováno v: Phys. Rev. Lett. 105, 216101 (2010)

When a slightly defective rutile TiO$_2$(110) surface is exposed to O$_2$ at elevated temperatures, the molecule dissociates at defects, filling O vacancies (\ov) and creating O adatoms (\oad) on {\tifc} rows. The adsorption of molecular O$_2$ at low

Externí odkaz: http://arxiv.org/abs/1009.1479

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