Selective hydrogenation of mesityl oxide with Pd/C?5 answersSelective hydrogenation of mesityl oxide with Pd/C can be achieved effectively based on insights from various studies. The use of Pd catalysts modified with alkenyl-type ligands has shown promising results in controlling hydrogenation chemistry. Additionally, the structure of Pd-In2O3/ZrO2 catalysts, prepared by wet impregnation, evolves into a selective and stable architecture under CO2 hydrogenation conditions, highlighting the importance of reaction-induced restructuring in complex catalyst systems. Moreover, N-doped reduced graphene oxides (NRGO) as a support for ultrafine Pd nanoparticles have demonstrated enhanced dispersion and catalytic activity for hydrogenation reactions, indicating the potential for efficient CC bond hydrogenation. These findings collectively suggest that Pd/C catalysts, especially when modified or supported appropriately, can offer high selectivity and activity for the hydrogenation of mesityl oxide.
What is metal oxide have been used as catalysts for ethanol oxidation reaction?5 answersMetal oxide catalysts used for ethanol oxidation reaction include mixed metal oxides (MMOs) with Mg2+ partially substituted by Fe2+, Co2+, Ni2+, Cu2+, and Zn2+. Additionally, trimetallic Pd61Sn34Cu5nanocrystals (NCs) with rough surfaces rich in step atoms and coupled with abundant SnOx and CuO have shown elevated electrocatalysis activity and durability for ethanol oxidation reaction. Mixed Ru-Sn oxides, specifically Ru0.38Sn0.62O2 and Ru0.67Sn0.33O2, have also been used as catalysts for ethanol oxidation.
Comparison table for metal oxide nanoparticles affect the ethanol oxidation reaction?5 answersMetal oxide nanoparticles have been shown to have a significant impact on the ethanol oxidation reaction (EOR). For instance, Pd-based composite electrocatalysts decorated with metallic oxide nanoparticles, such as WO3, exhibit higher catalytic activity and superior stability compared to commercial Pd/C catalysts. Similarly, alloyed PdAg nanoparticles have been found to have excellent current activity in EOR, with optimized Pd14Ag1 nanoparticles showing 3.3 times higher activity than commercial Pd/C catalysts. In addition, PtRhNi/SnO2 nanoframes-based catalysts have been shown to have higher activity and stability in EOR compared to PtRhNi nanoframes without SnO2 addition and commercially used Pt nanoparticles. These findings suggest that metal oxide nanoparticles, such as WO3, Ag, and SnO2, can enhance the catalytic performance of electrocatalysts in the ethanol oxidation reaction.
Why are metal supported SOFC important?5 answersMetal-supported solid oxide fuel cells (MS-SOFCs) are important due to their potential for improvements in mechanical robustness, power generation at low temperatures, and system compactness. MS-SOFCs offer advantages over conventional cermet-based SOFCs, including higher performance, quick start-up, thermal cycle stability, and lower raw material cost. Metal-supported cells have shown better performance and durability compared to state-of-the-art fuel electrode supported cells, especially under medium temperature operating conditions. The use of metal supports also allows for the introduction of internal reforming catalysts, which can enhance the efficiency of MS-SOFCs when using complex hydrocarbon and logistic fuels. Additionally, metal-supported cells can be fabricated using ceramic processing methods, which can decrease costs and increase robustness. Overall, metal-supported SOFCs have the potential to be a key player in energy systems, providing green fuels for transportation and contributing to power grid balance and energy storage.
What are the FTIR band positions of γ-Al2O3?4 answersThe FTIR band positions of γ-Al2O3 were not explicitly mentioned in the abstracts provided.
Which one has better catalytic performance platinum cobalt alloy or platinum chromium alloy?9 answers