scholarly journals Influence of bulk composition of the intermetallic compound ZnPd on surface composition and methanol steam reforming properties

2012 ◽  
Vol 285 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Matthias Friedrich ◽  
Detre Teschner ◽  
Axel Knop-Gericke ◽  
Marc Armbrüster
2012 ◽  
Vol 116 (28) ◽  
pp. 14930-14935 ◽  
Author(s):  
Matthias Friedrich ◽  
Detre Teschner ◽  
Axel Knop-Gericke ◽  
Marc Armbrüster

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1005
Author(s):  
Daniel Ruano ◽  
Beatriz M. Pabón ◽  
Càtia Azenha ◽  
Cecilia Mateos-Pedrero ◽  
Adélio Mendes ◽  
...  

In this work, the electronic properties of the metal sites in cubic and monoclinic ZrO2 supported Pd and PdCu catalysts have been investigated using CO as probe molecule in in-situ IR studies, and the surface composition of the outermost layers has been studied by APXPS (Ambient Pressure X-ray Photoemission Spectroscopy). The reaction products were followed by mass spectrometry, making it possible to relate the chemical properties of the catalysts under reaction conditions with their selectivity. Combining these techniques, it has been shown that the structure of the support (monoclinic or cubic ZrO2) affects the metal dispersion, mobility, and reorganization of metal sites under methanol steam reforming (MSR) conditions, influencing the oxidation state of surface metal species, with important consequences in the catalytic activity. Correlating the mass spectra of the reaction products with these spectroscopic studies, it was possible to conclude that electropositive metal species play an imperative role for high CO2 and H2 selectivity in the MSR reaction (less CO formation).


Author(s):  
Kevin Ploner ◽  
Andrew Doran ◽  
Martin Kunz ◽  
Albert Gili ◽  
Aleksander Gurlo ◽  
...  

To compare the properties of intermetallic compounds and intermetallic compound–oxide interfaces, Cu–In was used as a model to correlate stability limits, self-activation and redox activation with the inherent methanol steam reforming performance.


2013 ◽  
Vol 55 (3) ◽  
pp. 289-367 ◽  
Author(s):  
M. Armbrüster ◽  
M. Behrens ◽  
K. Föttinger ◽  
M. Friedrich ◽  
É. Gaudry ◽  
...  

2016 ◽  
Vol 125 (3) ◽  
pp. 1265-1272 ◽  
Author(s):  
Justyna Pawlonka ◽  
Wojciech Gac ◽  
Magdalena Greluk ◽  
Grzegorz Słowik

Sign in / Sign up

Export Citation Format

Share Document