Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"molecular catalyst"”.
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Molecular Hybrid Photocathodes Based on Silicon for Solar Fuel Synthesis
… products from H$_{2}$O and CO$_{2}$). However, molecular catalyst-based photocathodes remain scarcely reported and typically suffer from low efficiencies and/or stabilities due to inadequate strategies for interfacing the molecular component with the light-harvesting material, with benchmark …
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Carbon nitride for solar H2 production coupled to organic chemical transformations
… systems that combine a light harvester and catalysts in one-pot reactor are promising strategies towards this direction. Yet, most of the reported systems function by consuming excess amount of expensive sacrificial reagents, preventing commercial development. In this thesis, carbon nitrides …
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Sustainable photocatalysis using carbon-based materials through interfacial and solvent engineering
… in combination with transition metals, molecular catalysts, and biocatalysts. A homogeneous photocatalytic CO2 reduction system was established using graphitic nitrogen-doped carbon dots with a cobalt molecular catalyst, where rational electrostatic interactions enhanced interfacial …
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Photocatalysis in a New Light: A Biohybrid Approach for Improved Reactivity with Tunable, Low-Energy Light Excitation
… of exciting reaction modalities and the catalysts which perform these reactions. Less thought has been placed into the specific aspects of light absorption as the key step in photocatalytic mechanisms. Natural photosynthetic systems drive the high-energy reactions of photosynthesis with …
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Synthetic Molecular Models for the Oxygen Reduction Active Sites in Heteroatom-Doped Graphitic Electrocatalysts: Linking Heterogeneous and Homogeneous Electrocatalysis
… technologies require that low-cost platinum-free catalysts for the oxygen reduction reaction (ORR) that are highly active, selective, and durable be created. To this point, the advancement of potential replacement catalysts such as metal- and nitrogen-doped carbon (M-N-C) materials has been …
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ZnSe Quantum Dots as a platform for solar fuels synthesis
… (CO2 to CO reduction and H2 evolution) on photocatalysts comprised of nanoparticulate ZnSe Quantum Dots (QDs) in aqueous (ascorbate) solution. A continuous-flow setup for photocatalysis was successfully developed which enables in-line gas chromatography of multiple samples in parallel with high …
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Adaptive control of electronic excitation utilizing ultrafast laser pulses
… phase and involve one atomic and several model molecular systems. Absorption of femtosecond laser radiation by these systems induces an electronic excitation, and subsequently their ionization, photofragmentation or isomerization. The specific adjustment of the excitation laser field properties …
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Model-Based Experimental Investigation of Hydrogenase-Like Electrocatalytic Inactivation and Activation Mechanisms
… hydrogenases. The overall mechanism of the molecular inactivation and activation process (IAP) was detailed on the basis of our experimentally validated models and compared to [NiFe] hydrogenase IAP. Our findings offer novel perspectives to design finely optimised catalysts by eliminating …