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Ascorbate as an electron relay between an irreversible electron donor and Ru(II) or Re(I) photosensitizers.

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Publication date 2014
Author Bachmann Cyril, Probst Benjamin, Guttentag Miguel, Alberto Roger,
Project Homogeneous photocatalytic water splitting
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Original article (peer-reviewed)

Journal Chemical Communications (Cambridge, England)
Volume (Issue) 50(51)
Page(s) 6737 - 9
Title of proceedings Chemical Communications (Cambridge, England)
DOI 10.1039/c4cc01500b


Ascorbate acts as a reversible electron shuttle between tris(2-carboxyethyl) phosphine (TCEP) and Re(I) or Ru(II) photosensitizers. Oxidized ascorbate is recycled up to 50 times by the TCEP → TCEP[double bond, length as m-dash]O redox process which enables 30 000 TONs per WRC in photocatalytic hydrogen production, thus exceeding the performance with pure ascorbate by far.