Preparation and Characterization of V2O5/a-TiO2(101) Model Catalysts

S Koust, KC Adamsen, T Xu, I Beinik, Z Li… - The Journal of …, 2020 - ACS Publications
We prepared vanadia–titania model catalysts with V (+ 5) oxidation state by sublimating
V2O5 powder onto clean anatase TiO2 (101)[a-TiO2 (101)]. The V2O5/a-TiO2 (101) model …

Coverage-dependent oxidation and reduction of vanadium supported on anatase TiO2 (1 0 1)

S Koust, BN Reinecke, KC Adamsen, I Beinik… - Journal of …, 2018 - Elsevier
Using a multi-technical approach, we studied the oxidation of anatase TiO 2 (1 0 1)-
supported vanadium (V) clusters at room temperature. We found by ex situ XPS that the …

Theoretical Study of the Effect of (001) TiO2 Anatase Support on V2O5

K Alexopoulos, P Hejduk, M Witko… - The Journal of …, 2010 - ACS Publications
The effect of (001) TiO2 anatase support on the electronic and catalytic properties of a V2O5
monolayer is analyzed using density functional theory (DFT). The catalyst is represented by …

Migration and oxidation of vanadium atom and dimer supported on anatase TiO2 (1 0 1) surface

Z Huang, S Ma, B Qu, D Li, R Zhou - Applied Surface Science, 2021 - Elsevier
The migration and oxidation of single V atom and V 2 dimer on the anatase TiO 2 (1 0 1)
surface are systematically studied based on density functional theory (DFT) calculations. For …

Structural Characteristics and Reactivity/Reducibility Properties of Dispersed and Bilayered V2O5/TiO2/SiO2 Catalysts

X Gao, SR Bare, JLG Fierro… - The Journal of Physical …, 1999 - ACS Publications
Dispersed and bilayered V2O5/TiO2/SiO2 catalysts were successfully synthesized by the
incipient wetness impregnation method, and their surface structures under various …

[PDF][PDF] The surface structure and the chemical activity of V2O3 (0001) model catalysts

M Abu Haija - 2006 - pure.mpg.de
Results of a systematic study of various aspects of the well-defined V2O3 (0001) model
catalyst system are presented. This study deals with the preparation, the characterization …

Facile embedding of single vanadium atoms at the anatase TiO 2 (101) surface

S Koust, L Arnarson, PG Moses, Z Li, I Beinik… - Physical Chemistry …, 2017 - pubs.rsc.org
To understand the structure–reactivity relationships for mixed-metal oxide catalysts, well-
defined systems are required. Mixtures of vanadia and titania (TiO2) are of particular interest …

Vanadium oxide nanostructures on another oxide: The viewpoint from model catalysts studies

L Artiglia, S Agnoli, G Granozzi - Coordination Chemistry Reviews, 2015 - Elsevier
An overview of the current research in the field of vanadium oxide (VO x) monolayer
catalysts on oxide supports based on a Surface Science approach applied to model …

The structure of vanadia ultrathin films grown on TiO2 (1 1 0) in an oxygen ambient

M Sambi, M Della Negra, G Granozzi - Surface science, 2000 - Elsevier
Vanadium oxide has been deposited on TiO2 (110) by means of e-beam metal evaporation
in an oxygen atmosphere at room temperature, following a procedure that has already been …

Periodic Density Functional Theory Studies of Vanadia− Titania Catalysts: Structure and Stability of the Oxidized Monolayer

A Vittadini, A Selloni - The Journal of Physical Chemistry B, 2004 - ACS Publications
We present first-principles calculations of vanadia− titania catalysts at V-coverages up to
one monolayer. Realistic slab models are built where vanadate species (VO x) are grafted …