9 documents found

Covalent POM–Ir hybrid assemblies: tuning redox properties for light-driven multiple charge accumulation †

This study reports the synthesis, electrochemical characterization, and photophysical properties of two novel photoactive polyoxometalate (POM)–Ir photosensitizer hybrid assemblies. Under visible light irradiation in the presence of triethylamine and trifluoroacetic acid, the polyoxomolybdate-based dyad…
Cambridge: Royal Society of Chemistry, 2025-06-04

Electrochemical and photocatalytic characterization of [FeFe]-hydrogenase mimics for hydrogen production

This dissertation provides novel insights and advancements in the dynamic research area of [FeFe]-hydrogenase mimics, addressing various facets through distinct subtopics. Following the synthesis and characterization of diiron complexes designed to replicate the H-cluster of natural [FeFe]-hydrogenase…

From Molecular to Polymeric Donors: Prolonged Charge Separation in Modular Photoredox-Active Ru(II) Polypyridyl-Type Triads

In this contribution, the divergent modular synthesis of photoredox-active dyads, triads and a tetrad descending from one ligand precursor is presented by combining “chemistry-on-the-ligand”, stepwise complexation and “chemistry-on-the-complex” with minimal synthetic efforts. In the final step, Pd-mediated…
Washington, DC: American Chemical Society, 2024-11-25

Deposition of CdSe Nanocrystals in Highly Porous SiO 2 Matrices : In Situ Growth vs. Infiltration Methods

aus: Materials
Embedding quantum dots into porous matrices is a very beneficial approach for generating hybrid nanostructures with unique properties. In this contribution we explore strategies to dope nanoporous SiO 2 thin films made by atomic layer deposition and selective wet chemical etching with precise control…
Basel: MDPI, 2024-09-05

CdSe quantum dots@ZIF-8 : hybrid materials with improved photocatalytic efficiency

In this study used different synthesis methods to synthesize CdSe quantum dots, and formed hybrid materials CdSe@ZIF500 with different interaction modes through various ligand exchanges with ZIF-8 metal-organic frameworks, and optimized the CdSe quantum dots. points and content of ZIF-8 metal-organic…

[FeFe] hydrogenase mimics : access and activation

Im Hinblick auf eine nachhaltige Energiewirtschaft könnte „grüner“ Wasserstoff (H2) aus der Wasserspaltung mithilfe erneuerbarer Energien mittelfristig eine geeignete Alternative zu fossilen Energieträgern darstellen. Eine solche Perspektive wäre ohne H2-Grundlagenforschung undenkbar, bei der ein Blick…

Organic photosensitizers for light-driven hydrogen evolution : synthesis, characterization and application

This work utilizes organic chromophores, namely perylene dyes and BODIPYs, as light-active component in light-driven hydrogen evolution.

The Other Dimension—Tuning Hole Extraction via Nanorod Width

Solar-to-hydrogen generation is a promising approach to generate clean and renewable fuel. Nanohybrid structures such as CdSe@CdS-Pt nanorods were found favorable for this task (attaining 100% photon-to-hydrogen production efficiency); yet the rods cannot support overall water splitting. The key limitation…
Basel: MDPI, 2022-09-25

Photocathodes beyond NiO: charge transfer dynamics in a π-conjugated polymer functionalized with Ru photosensitizers

Abstract A conductive polymer (poly( p -phenylenevinylene), PPV ) was covalently modified with Ru II complexes to develop an all-polymer photocathode as a conceptual alternative to dye-sensitized NiO, which is the current state-of-the-art photocathode in solar fuels research. Photocathodes require efficient…
London: Macmillan Publishers Limited, part of Springer Nature, 2021-02-02