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- Title
Rationalizing In Situ Active Repair in Hydrogen Evolution Photocatalysis via Non‐Invasive Raman Spectroscopy.
- Authors
Klingler, Sarah; Bagemihl, Benedikt; Mengele, Alexander K.; Kaufhold, Simon; Myllyperkiö, Pasi; Ahokas, Jussi; Pettersson, Mika; Rau, Sven; Mizaikoff, Boris
- Abstract
Currently, most photosensitizers and catalysts used in the field of artificial photosynthesis are still based on rare earth metals and should thus be utilized as efficiently and economically as possible. While repair of an inactivated catalyst is a potential mitigation strategy, this remains a challenge. State‐of‐the‐art methods are crucial for characterizing reaction products during photocatalysis and repair, and are currently based on invasive analysis techniques limiting real‐time access to the involved mechanisms. Herein, we use an innovative in situ technique for detecting both initially evolved hydrogen and after active repair via advanced non‐invasive rotational Raman spectroscopy. This facilitates unprecedently accurate monitoring of gaseous reaction products and insight into the mechanism of active repair during light‐driven catalysis enabling the identification of relevant mechanistic details along with innovative repair strategies.
- Subjects
RAMAN spectroscopy; ATOMIC hydrogen; RARE earth metals; PHOTOCATALYSIS; ARTIFICIAL photosynthesis; GAS analysis; HYDROGEN evolution reactions
- Publication
Angewandte Chemie, 2023, Vol 135, Issue 44, p1
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202306287