Catalysis Today

Journal: Catalysis Today

Abbreviation

Catal. today

Publisher

Elsevier

ISSN

0920-5861
1873-4308

Show all metadata

Search Results

Publications1 - 10 of 68

Selective oxidation of benzyl alcohol to benzaldehyde in "supercritical" carbon dioxide
Caravati, Matteo; Grunwaldt, Jan-Dierk; Baiker, Alfons (2004)
Catalysis Today
The nature of the active site in the Fe-ZSM-5/N2O system studied by (resonant) inelastic X-ray scattering
Pirngruber, Gerhard D.; Grunwaldt, Jan-Dierk; Roy, Pijus K.; et al. (2007)
Catalysis Today
Influence of the support on sulfur poisoning and regeneration of Ru catalysts probed by sulfur K-edge X-ray absorption spectroscopy
König, Christian F. J.; Schuh, Patrick; Huthwelker, Thomas; et al. (2014)
Catalysis Today
Flame sprayed visible light-active Fe-TiO2 for photomineralisation of oxalic acid
Teoh, Wey Yang; Amal, Rose; Mädler, Lutz; et al. (2007)
Catalysis Today
Electronic structures of supported Pt and PtSn nanoparticles in the presence of adsorbates and during CO oxidation
Vicente, Brian C.; Nelson, Ryan C.; Singh, Jagdeep; et al. (2011)
Catalysis Today
Mechanisms of hydrodesulfurization and hydrodenitrogenation
Prins, R.; Egorova, M.; Röthlisberger, A.; et al. (2006)
Catalysis Today
Computational screening of perovskite redox materials for solar thermochemical ammonia synthesis from N2 and H2O
Michalsky, Ronald; Steinfeld, Aldo (2017)
Catalysis Today
To circumvent the scaling relations of activation energies and adsorption energies at catalytic surfaces limiting their catalytic activity, perovskites are investigated for a solar-driven production of ammonia (NH3) from N2 and H2O via a two-step redox cycle. The cycle consists of an endothermal reduction of N2 at 1400 °C using solar process heat, followed by an exothermal hydrolysis forming NH3 at 400 °C. Both steps are carried out at ambient pressure. Electronic structure computations are employed to assess the stability and surface activity of oxygen vacancies and lattice nitrogen at the (001) facet of nitrogen-doped perovskites. The results are compared to the activities of Mo2N(100), Mo2N(111), and Mn2N(0001) reference models. We find producing oxygen vacancies at high temperature that are active in N2 reduction is the energetically limiting reaction step of the redox cycle. The redox energetics can be tuned by the perovskite composition and are most sensitive to the type of transition metal at the B site terminating the surface. Promising perovskites contain Co or Mn at the surface and Co doped with Mo or W in the bulk, such as CaCoO3-terminated La0.5Ca0.5Mo0.5Co0.5O3, SrCoO3-terminated Sr0.5La0.5Co0.5W0.5O3, and CaMnO3-terminated Sr0.5Ca0.5MnO3. Trade-offs in the redox energetics are quantified to guide future experimental work.
Hematite photoanode co-functionalized with self-assembling melanin and C-phycocyanin for solar water splitting at neutral pH
Schrantz, Krisztina; Wyss, Pradeep P.; Ihssen, Julian; et al. (2017)
Catalysis Today
Flame-made vs. wet-impregnated vanadia/titania in the total oxidation of chlorobenzene: Possible role of VOx species
Schimmoeller, Bjoern; Delaigle, Romain; Debecker, Damien P.; et al. (2010)
Catalysis Today
A modulated excitation ED-EXAFS/DRIFTS study of hydrothermal ageing of Rh/Al2O3
Marchionni, Valentina; Newton, Mark A.; Kambolis, Anastasios; et al. (2014)
Catalysis Today

Publications1 - 10 of 68

Journal: Catalysis Today

Abbreviation

Publisher

Journal Volumes

ISSN

Description

Filters

Search Results