Landmann, Avigail und Dotan, Hen und Shter, Gennady E. und Wullenkord, Michael und Houaijia, Anis und Maljusch, Artjom und Grader, Gideon S. und Rothschild, Avner (2017) Photoelectrochemical water splitting in separate oxygen and hydrogen cells. Nature Materials. Springer. doi: 10.1038/nmat4876. ISSN 1476-1122.
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Offizielle URL: http://www.nature.com/nmat/journal/vaop/ncurrent/full/nmat4876.html#access
Kurzfassung
Solar water splitting provides a promising path for sustainable hydrogen production and solar energy storage. One of the greatest challenges towards large-scale utilization of this technology is reducing the hydrogen production cost. The conventional electrolyser architecture, where hydrogen and oxygen are co-produced in the same cell, gives rise to critical challenges in photoelectrochemical water splitting cells that directly convert solar energy and water to hydrogen. Here we overcome these challenges by separating the hydrogen and oxygen cells. The ion exchange in our cells is mediated by auxiliary electrodes, and the cells are connected to each other only by metal wires, enabling centralized hydrogen production. We demonstrate hydrogen generation in separate cells with solar-to-hydrogen conversion efficiency of 7.5%, which can readily surpass 10% using standard commercial components. A basic cost comparison shows that our approach is competitive with conventional photoelectrochemical systems, enabling safe and potentially affordable solar hydrogen production.
elib-URL des Eintrags: | https://elib.dlr.de/111503/ | ||||||||||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||||||||||
Titel: | Photoelectrochemical water splitting in separate oxygen and hydrogen cells | ||||||||||||||||||||||||||||||||||||
Autoren: |
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Datum: | 13 März 2017 | ||||||||||||||||||||||||||||||||||||
Erschienen in: | Nature Materials | ||||||||||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||||||||||
DOI: | 10.1038/nmat4876 | ||||||||||||||||||||||||||||||||||||
Verlag: | Springer | ||||||||||||||||||||||||||||||||||||
ISSN: | 1476-1122 | ||||||||||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||||||||||
Stichwörter: | Chemical Engineering, Photocatalysis | ||||||||||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||||||||||||||||||||||
HGF - Programm: | Erneuerbare Energie | ||||||||||||||||||||||||||||||||||||
HGF - Programmthema: | Solare Brennstoffe | ||||||||||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | E SF - Solarforschung | ||||||||||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Solare Brennstoffe (alt) | ||||||||||||||||||||||||||||||||||||
Standort: | Köln-Porz | ||||||||||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Solarforschung > Solare Verfahrenstechnik | ||||||||||||||||||||||||||||||||||||
Hinterlegt von: | Sattler, Prof. Dr. Christian | ||||||||||||||||||||||||||||||||||||
Hinterlegt am: | 22 Mai 2017 14:55 | ||||||||||||||||||||||||||||||||||||
Letzte Änderung: | 29 Jul 2022 13:31 |
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