Oct 18, 2021 · We show that a 2D morphology of the PdO x phase synthesized with this approach is thermally stable and resistant to water poisoning, showing increased reactivity in methane oxidation.

Feb 1, 2025 · Here, we combined Pd ion titrations, X-ray absorption spectroscopy (XAS), and reaction kinetics measurements on a PdCu/Faujasite material (1 wt% Pd, 4 wt% Cu, Si/Al 2.6) to investigate how high-temperature air treatments impact the structure of Pd sites and their reactivity for Wacker oxidation of ethylene to acetaldehyde.

Jan 28, 2019 · In this study, two high-performance supported Pd nanoparticle catalysts (Pd/γ-Al 2 O 3 and Pd/zeolite-Y) are investigated for NH 3 -SCO using a combination of XAFS with DRIFTS and on-line mass...

Aug 1, 2024 · High-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) and operando quick-extended X-ray absorption fine structure (QEXAFS) were used to study the evolution of Pd...

May 16, 2013 · The PdO-Pd phase transformation in a 4 wt% Pd/Al2O3 catalyst has been investigated using in situ X-ray absorption spectroscopy (XAS) and in situ X-ray total scattering (also known as high-energy X-ray diffraction) techniques. Both the partial and total pair distribution functions (PDF) from these respective techniques have been analysed in depth.

Apr 30, 2013 · Synchronous XAS, DRIFTS and on-stream MS measurements under dynamic operando conditions permit elucidation of fundamental structure–reactivity relationships in the selective aerobic oxidation of crotyl alcohol over palladium catalysts.

May 1, 2024 · In summary, the redox-driven surface generation of 2D metallic Pd bumps on litchi-like PdO surface was manifested to be highly active for the methane oxidation, according to the characterizations by HAADF-STEM, quasi in situ XPS, operando XAS, and DFT calculations.

Jun 14, 2013 · The PdO-Pd phase transformation in a 4 wt% Pd/Al2O3 catalyst has been investigated using in situ X-ray absorption spectroscopy (XAS) and in situ X-ray total scattering (also known as high-energy X-ray diffraction) techniques. Both the partial and total pair distribution functions (PDF) from these re …

The PdO–Pd phase transformation in a 4 wt% Pd/Al 2 O 3 catalyst has been investigated using in situ X-ray absorption spectroscopy (XAS) and in situ X-ray total scattering (also known as high-energy X-ray diffraction) techniques.

Jul 16, 2021 · An oxidized Pd/Al 2 O 3 catalyst was reduced by using H 2-saturated cyclohexane at 70 °C, and reduction was followed in real time by attenuated total reflection infrared spectroscopy (ATR-IR), high-energy X-ray diffraction (XRD), and quick scanning X-ray absorption spectroscopy (XAS) to obtain the perspective from different materials ...