Quick Search:

uzh logo
Browse by:

Zurich Open Repository and Archive

Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-60369

Probst, B; Guttentag, M; Rodenberg, A; Hamm, P; Alberto, R (2011). Photocatalytic H2 production from water with rhenium and cobalt complexes. Inorganic Chemistry, 50(8):3404-3412.

Accepted Version
View at publisher


Photocatalytic hydrogen production in pure water for three component systems using a series of rhenium-based photosensitizers (PS) and cobalt-based water reduction catalysts (WRC), with triethanolamine (TEOA) as an irreversible electron donor, is described. Besides the feasibility of this reaction in water, key findings are reductive quenching of the excited state of the PS by TEOA (k(q) = 5-8 × 10(7) M(-1) s(-1); Φ(cage) = 0.75) and subsequent transfer of an electron to the WRC (k(Co(III)) = 1.1 × 10(9) M(-1) s(-1)). Turnover numbers in rhenium (TON(Re), H/Re) above 500 were obtained, whereas TON(Co) (H(2)/Co) did not exceed 17. It is shown that the cobalt-based WRC limits long-term performance. Long-term performance critically depends on pH and the type of WRC used but is unaffected by the type of PS or the concentration of WRC. A quantum yield of 30% was obtained (H/photon).


85 citations in Web of Science®
87 citations in Scopus®
Google Scholar™



93 downloads since deposited on 07 Mar 2012
11 downloads since 12 months

Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Deposited On:07 Mar 2012 16:52
Last Modified:05 Apr 2016 15:41
Publisher:American Chemical Society
Additional Information:This document is the Accepted Manuscript version of a Published Work that appeared in final form in Inorganic Chemistry, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/ic102317u
Publisher DOI:10.1021/ic102317u
PubMed ID:21366324

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page