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A Ruthenium‐Based Biomimetic Hydrogen Cluster for Efficient Photocatalytic Hydrogen Generation from Formic Acid
Author(s) -
Chang ChinHao,
Chen MeiHua,
Du WanShan,
Gliniak Jacek,
Lin JiaHoa,
Wu HsinHua,
Chan HsinFang,
Yu JenShiang K.,
Wu TungKung
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201406381
Subject(s) - formic acid , ruthenium , photocatalysis , turnover number , catalysis , hydrogen production , hydrogen , chemistry , decomposition , phosphine , photochemistry , ligand (biochemistry) , degradation (telecommunications) , inorganic chemistry , nuclear chemistry , organic chemistry , biochemistry , telecommunications , receptor , computer science
Abstract A ruthenium‐based biomimetic hydrogen cluster, [Ru 2 (CO) 6 (μ‐SCH 2 CH 2 CH 2 S)] ( 1 ), has been synthesized and, in the presence of the P ligand tri( o ‐tolyl)phosphine, demonstrated efficient photocatalytic hydrogen generation from formic acid decomposition. Turnover frequencies (TOFs) of 5500 h −1 and turnover numbers (TONs) over 24 700 were obtained with less than 50 ppm of the catalyst, thus representing the highest TOFs for ruthenium complexes as well as the best efficiency for photocatalytic hydrogen production from formic acid. Moreover, 1 showed high stability with no significant degradation of the photocatalyst observed after prolonged photoirradiation at 90 °C.