Publications by authors named "Ewelina Szaniawska"
Metal substitution of molecular sieve systems is a major driving force in developing novel catalytic processes to meet current demands of green chemistry concepts and to achieve sustainability in the chemical industry and in other aspects of our everyday life. The advantages of metal-substituted molecular sieves include high surface areas, molecular sieving effects, confinement effects, and active site and morphology variability and stability. The present review aims to comprehensively and critically assess recent advances in the area of tetra- (Ti, Sn, Zr, Hf) and pentavalent (V, Nb, Ta) metal-substituted molecular sieves, which are mainly characterized for their Lewis acidic active sites.
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- The study focuses on a specific type of photocathode made from NiO and palladium nanoparticles (nPd) that can efficiently reduce CO using visible light, starting from a low potential of 0 V RHE.
- The NiO is photosensitized by the organic dye P1, which enhances light absorption (400-650 nm) and boosts the photocathode's stability and catalytic performance.
- Electrons generated by P1 are transferred to nPd to create a hydride material, which helps facilitate the CO reduction process, with the effectiveness linked to the amount of palladium loaded on the photocathode surface.