Effects of Pd site structural changes on Wacker oxidation of …
Feb 1, 2025 · Post-reaction XAS confirms the absence of significant restructuring between PdO clusters and Pd ions following exposure to Wacker reaction conditions. We further performed …
Engineering catalyst supports to stabilize PdO - Nature
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 …
Operando XAS Study of Pt-Doped CeO2 for the Nonoxidative …
Mar 14, 2022 · Operando x-ray absorption spectroscopy (XAS) was used to monitor the evolution of Pd and Pt during poisoning and regeneration. The studies show the formation of PdS and …
Structural selectivity of supported Pd nanoparticles for ... - Nature
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 …
Elucidation of structure and nature of the PdO-Pd ... - PubMed
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 …
Reduction of PdO/Al2O3 in Liquid Cyclohexane Followed In Situ …
Jul 16, 2021 · We show that dynamic Pd speciation changes can be monitored during reduction in the liquid phase. XRD and XAS indicated that the isothermal PdO reduction passes through an …
Redox-driven surface generation of highly active Pd/PdO interface ...
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 …
An in situ XAS study of the activation of precursor-dependent …
May 9, 2018 · The activation of precursor-dependent Pd nanoparticles was comprehensively followed by in situ X-ray absorption spectroscopy on two inorganic supports for rationalizing …
Elucidation of structure and nature of the PdO–Pd transformation …
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 …
An in situ XAS study of the activation of precursor-dependent Pd ...
The Cl-based precursor, which presents high thermal stability, passes through a PdO x Cl y mixed phase when submitted to calcination on Pd/Al 2 O 3 and leaves Cl-species after metal …
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