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Showing 1 to 11 of 11 for “"Heterogenization"”.
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Supporting Well-Defined Platinum Group Metals in Metal-Organic Frameworks for Heterogeneous Catalysis
… on homogeneous systems for metal recovery. Heterogenization of PGMs thus poses a substantial benefit by enabling efficient catalyst reuse, but it remains a challenge to translate the well-defined nature of molecular catalysts (and thus their high selectivity/activity) to a solid support. In …
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Environmental tuning of the reactivity of molecules confined to polarized interfaces
The heterogenization of molecular catalysts to polarized interfaces provides an appealing approach to the design of more efficient and selective electrochemical devices. The well-defined nature of molecular catalysts renders them amenable to synthetic tuning to unravel structure-function …
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SYNTHESIS AND CHARACTERIZATION OF SUPPORTED SOLID ACID CATALYSTS FOR CONVERSION OF GREEN SEED CANOLA OIL TO BIODIESEL
… one, commercial γ-alumina was tested for the heterogenization of HPW. HPW loading of 45 wt % was found to be optimum giving a methyl ester yield of 90.0 ± 2.8 wt % for biodiesel synthesis from refined canola oil under optimized reaction conditions that is 10 wt % of the catalyst loading, 17.5 …
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Modeling gap dynamics, succession, and disturbance regimes of mangrove forests
… events regarding their homogenization and heterogenization effects on the spatio-temporal forest structure. The findings of the field study in the Indian River Lagoon indicate that hurricane events had a severe impact on forest areas in higher successional stages by creating open patches, …
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The Critique of Everyday Drought: A Feminist Decolonial Analysis of Hydro-Climate Policies in Cape Town, South Africa
… contributes to feminist efforts towards the heterogenization of urban political ecology.
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Increasing the Stability and Turnover Number of a Highly Active Iron Catalyst for the Asymmetric Transfer Hydrogenation of Ketones
… obtain quantitative conversion, as well as the heterogenization of the precatalyst for eventual use in a continuous flow system. The orthophenylene catalysts in Chapter 3 displayed lower activity due to the rigidity of the triphenylphosphine donor, which places a phenyl group into the active …
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Highly Efficient Catalysts for the Dimerization of α-Olefins
… products (94 %) but lower activities. After the heterogenization of the catalysts, the amounts of dimeric products were constantly 100%. Under homogeneous and heterogeneous reaction conditions, the same product distributions within the dimer fractions were observed. The use of a fixed bed reactor …
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Homogeneous flow catalysis strategies for lab-scale kinetic investigation and reaction development
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-05-11 without embargo terms
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FREE-BASE PORPHYRIN FOR CO2 ACTIVATION
… catalysts for the CO2 cycloaddition reaction The heterogenization of the porphyrin onto a SBA-15 silica material has been proposed in this chapter. To improve the reaction sustainability, the synthesis of an active heterogeneous catalyst represents a crucial step to simplify the catalyst recovery …
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BRIDGING EXPERIMENT AND THEORY IN PORPHYRIN CHEMISTRY: DEVELOPING MATERIALS FOR SENSING, OPTICAL, AND CATALYTIC TECHNOLOGIES
… underscoring the advantages of catalyst heterogenization. These results motivated the development of Rh–porphyrin-based covalent organic frameworks (COFs) as robust heterogeneous catalytic architectures featuring ordered porosity and accessible active centers. By incorporating …
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SOLID-SUPPORTED PORPHYRINS FOR CATALYSIS AND SENSING
… of 74:26 at 166 °C in 1 hour. We attempted the heterogenization of the catalyst onto ColourCatcher® sheet by applying the already used grafting method2 to hematin sodium salt and the resulting supported porphyrin was refluxed in methanol to obtain 5@CC. 5@CC was applied in cyclopropanation …