Zobrazeno 1 - 10
of 154
pro vyhledávání: '"V. Plzak"'
Publikováno v:
Journal of Catalysis. 252:231-242
The roles of cationic and nonionic Au species in the water–gas shift (WGS) reaction on Au/CeO 2 catalysts were studied by comparing the reaction behavior of a cyanide leached catalyst, after removal of the Au nanoparticles by cyanide leaching, with
Publikováno v:
Journal of Catalysis. 251:363-373
The deactivation of unconditioned Au/TiO2 catalysts during CO oxidation at different reaction temperatures (30 and 80 °C) and in different reaction atmospheres was investigated. Kinetic and in situ IR spectroscopic measurements revealed a close corr
Publikováno v:
Journal of Catalysis. 250:139-150
The deactivation of Au/CeO2 catalysts during low-temperature water–gas shift reaction and the underlying physical origin were investigated, comparing the deactivation in different reaction atmospheres and subsequent regeneration of the catalysts by
Autor:
V. Plzak, Y. Denkwitz, U. Hörmann, Rolf Jürgen Behm, Jasmin Geserick, Ute Kaiser, Nicola Hüsing
Publikováno v:
Catalysis Letters. 119:199-208
The activity and stability of structurally well defined mesoporous Au/TiO2 catalysts with different support morphologies and pore sizes for low temperature CO oxidation was investigated by kinetic measurements and in-situ IR spectroscopy. The resulti
Autor:
J. Cai, V. Plzak, Ute Kaiser, Rolf Jürgen Behm, A. Karpenko, R. Leppelt, Andrey Chuvilin, B. Schumacher
Publikováno v:
Topics in Catalysis. 44:183-198
The influence of the support surface area on the activity and stability/deactivation of Au/CeO2 catalysts (2.7 wt% Au) in the water gas shift reaction in dilute water gas were investigated by kinetic measurements and in situ Diffuse Reflectance IR sp
Publikováno v:
Catalysis Letters. 116:105-115
The effect of the pre-treatment temperature and atmosphere on the surface composition and on the activity and stability of well defined Au/CeO2 catalysts in the low-temperature water-gas shift reaction in dilute water gas was investigated by X-ray ph
Publikováno v:
Journal of Catalysis. 246:74-90
The effect of CO2 and H2 on the activity and deactivation of Au/CeO2 catalysts in the low-temperature water–gas shift reaction was investigated by combined kinetic and in situ IR spectroscopic measurements, going stepwise from idealized to realisti
Publikováno v:
Journal of Catalysis. 244:137-152
Kinetic and mechanistic aspects of the low-temperature water–gas shift reaction on Au/CeO2 catalysts in idealized reaction atmosphere (1 kPa CO, 2 kPa H2O) and the effect of catalyst loading were investigated, comparing 8 catalysts with increasing
Publikováno v:
Catalysis Letters. 101:215-224
We present results of a comparative study on the reproducibility of Au/TiO2 catalyst preparation and conditioning. Comparison of their physical characteristics and their catalytic activity for CO oxidation shows that highly active catalysts can indee
Publikováno v:
Journal of Catalysis. 224:449-462
We present results of a kinetic and in situ IR spectroscopic study, including isotope-labeling experiments, on the CO oxidation behavior over a highly active Au/TiO2 catalyst prepared via a novel synthesis procedure, and on the effect of H2 on the CO