Robust Cuprous Phenanthroline Sensitizer for Solar Hydrogen Photocatalysis | Zendy

Rony S. Khnayzer | Zendy; Catherine E. McCusker | Zendy; Babatunde S. Olaiya | Zendy; Felix N. Castellano | Zendy

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Robust Cuprous Phenanthroline Sensitizer for Solar Hydrogen Photocatalysis

Author(s) -

Rony S. Khnayzer,

Catherine E. McCusker,

Babatunde S. Olaiya,

Felix N. Castellano

Publication year - 2013

Publication title -

journal of the american chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.115

H-Index - 612

eISSN - 1520-5126

pISSN - 0002-7863

DOI - 10.1021/ja407816f

Subject(s) - chemistry , photocatalysis , photosensitizer , photochemistry , phenanthroline , catalysis , visible spectrum , aqueous solution , hydrogen , metal , hydrogen production , inorganic chemistry , organic chemistry , physics , optoelectronics

The Cu(I) metal-to-ligand charge-transfer complex, [Cu(dsbtmp)2](+) (dsbtmp = 2,9-di(sec-butyl)-3,4,7,8-tetramethyl-1,10-phenanthroline), exhibits outstanding stability as a visible-light-absorbing photosensitizer in hydrogen-evolving homogeneous photocatalysis. In concert with the Co(dmgH)2(py)Cl water reduction catalyst and N,N-dimethyl-p-toluidine sacrificial donor in 1:1 H2O:CH3CN, this Cu(I) sensitizer remains active even after 5 days of visible-light-pumped (λex = 452 ± 10 nm) hydrogen evolution catalysis. Deuteration studies illustrate that the hydrogen produced from this composition does indeed originate from aqueous protons.

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