We report on a photocatalytic setup that utilizes the organic photosensitizer (PS) diiodo-BODIPY and the non-precious-metal-based hydrogen evolution reaction (HER) catalyst (NH4)2[Mo3S13] together with a polyampholytic unimolecular matrix poly(dehydroalanine)-graft-poly(ethyleneglycol) (PDha-g-PEG) in aqueous media. The system shows exceptionally high performance with turnover numbers (TON > 7300) and turnover frequencies (TOF > 450 h−1) that are typical for noble-metal- containing systems. Excited state absorption spectra reveal the formation of a long-lived triplet state of the PS in both aqueous and organic media. The system is a blueprint for developing noble-metal-free HER in water. Component optimization, e.g., by modification of the meso substituent of the PS and the composition of the HER catalyst, is further possible.
Authors
- Daniel Costabel,
- Afshin Nabiyan,
- Avinash Chettri,
- Franz Jacobi,
- Magdalena Heiland,
- prof. dr hab. Julien Guthmuller link open in new tab ,
- Stephan Kupfer,
- Maria WäCHTLER,
- Benjamin Dietzek-Ivanšić,
- Carsten Streb,
- Felix H. Schacher,
- Kalina Peneva
Additional information
- DOI
- Digital Object Identifier link open in new tab 10.1021/acsami.2c18529
- Category
- Publikacja w czasopiśmie
- Type
- artykuły w czasopismach
- Language
- angielski
- Publication year
- 2023
