Publications by authors named "Jan-Hendrik Kruse"
Article Synopsis
- Heterogeneous light-driven catalysis plays a crucial role in sustainable energy conversion, but traditional methods often overlook the relationship between material properties and overall performance.
- The study focuses on a unique system where a water oxidation catalyst and a molecular photosensitizer are co-immobilized in a nanoporous membrane, allowing for better analysis of their interactions.
- By using techniques like scanning electrochemical microscopy and infrared spectroscopy, researchers were able to monitor oxygen production and confirm the stability of the catalyst under light-driven conditions.
Article Synopsis
- Researchers have developed new block copolymer membranes that are designed for photocatalysis, incorporating light-absorbing components known as photosensitizers.
- They investigated how these photosensitizers behave within the membranes using advanced techniques to measure their movements and orientations at a very short timescale (femtoseconds).
- The results showed that the photosensitizers are strongly attached to the membrane and exhibit varied orientations based on their location, likely due to differences in chemical interactions and protonation states within the membrane.
Polydehydroalanine (PDha) is a polyampholyte featuring both a -NH and a -COOH in every repeat unit and with that presents a rather high charge density. The synthesis and polymerization of two monomers, benzyl 2-tert-butoxycarbonylaminoacrylate and methyl 2-benzyloxycarbonylaminoacrylate is herein reported, which feature different protective groups and, after polymerization, the resulting PtBABA and PBOMA can be transformed into PDha using polymer-analogous modification reactions. More important, the current choice of protective groups allows either simultaneous deprotection in one step in both cases, but also the orthogonal deprotection of either -NH or -COOH moiety for PtBABA, given that appropriate conditions are chosen.
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