Improving carbon tolerance of Ni-YSZ catalytic porous membrane by palladium addition for low temperature steam methane reforming
Autor: | Sung Su Kim, Seung Hyun Lee, Sang Moon Lee, Jong Min Won, Sung Chang Hong, Geo Jong Kim |
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Rok vydání: | 2017 |
Předmět: |
Materials science
Scanning electron microscope Inorganic chemistry General Physics and Astronomy chemistry.chemical_element 02 engineering and technology Surfaces and Interfaces General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Dissociation (chemistry) 0104 chemical sciences Surfaces Coatings and Films Catalysis Steam reforming Adsorption X-ray photoelectron spectroscopy chemistry 0210 nano-technology Yttria-stabilized zirconia Palladium |
Zdroj: | Applied Surface Science. 419:788-794 |
ISSN: | 0169-4332 |
Popis: | Palladium was added on the Ni-YSZ catalytic porous membrane by wet impregnation and electroless plating methods. Its surface morphology characteristics and carbon deposition properties for the low temperature steam methane reforming were investigated. The addition of palladium could obviously be enhanced the catalytic activity as well as carbon tolerance of the Ni-YSZ porous membrane. The porous membranes were evaluated by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), H 2 temperature-programmed reduction (H 2 -TPR), CH 4 temperature-programmed reduction (CH 4 -TPR), and O 2 temperature-programmed oxidation (O 2 -TPO). It was found that the Pd-Ni-YSZ catalytic porous membrane showed the superior stability as well as the deposition of carbon on the surface during carbon dissociation adsorption at 650 °C was also suppressed. |
Databáze: | OpenAIRE |
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