The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Palladium(II) acetate, is researched, Molecular C4H6O4Pd, CAS is 3375-31-3, about PdCu supported on dendritic mesoporous CexZr1-xO2 as superior catalysts to boost CO2 hydrogenation to methanol, the main research direction is cerium zirconium oxide carbon dioxide hydrogenation surface property; CO(2) hydrogenation; Dendritic PdCu/Ce(0.3)Zr(0.7)O(2) catalyst; Hydrogen spillover; Methanol; Oxygen vacancy.Computed Properties of C4H6O4Pd.
A dendritic PdCu/Ce0.3Zr0.7O2 (PdCu/CZ-3) catalyst with uniform spherical morphol. was prepared for boosting the catalytic performance of CO2 hydrogenation to methanol (MeOH). The open dendritic pore channels and small particle sizes could reduce not only the diffuse resistance of reactants and products but also increase the accessibility between the active sites (PdCu and oxygen vacancy) and the reactants (H2 and CO2). More spillover hydrogen could be generated due to the highly dispersed PdCu active metals over the PdCu/CZ-3 catalyst. PdCu/CZ-3 can stimulate the generation of more Ce3+ cations, which is beneficial to produce more oxygen vacancies on the surface of the CZ-3 composite. Spillover hydrogen and oxygen vacancy could promote the formate and methoxy routes over PdCu/CZ-3, the primary intermediates producing MeOH. PdCu/CZ-3 displayed the highest CO2 conversions (25.5%), highest MeOH yield (6.4%), highest PdCu-TOFMeOH (7.7 h-1) and superior 100 h long-term stability than those of other PdCu/CexZr1-xO2 analogs and the reference PdCu/CeO2 and PdCu/ZrO2 catalysts. D. functional theory (DFT) calculations and in situ DRIFTS were performed to investigate the CO2 – MeOH hydrogenation mechanism.
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