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Ru-Hbpp-Based Water-Oxidation Catalysts Anchored on Conducting Solid Supports


  • This research was financed by Solar-H2(EU 212508), the MEC (Spain) through projects Consolider Ingenio 2010 CSD2006-0003, CTQ2007-67918, and CTQ2007-60476. J.M. is grateful for the award of a doctoral grant from CIRIT Generalitat de Catalunya. Dr. E. Palomares from ICIQ is thanked for a gift of FTO electrodes. Hbpp=3,5-bis(2-pyridyl)pyrazole.


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Splitting water: Copolymerization of the cationic water-oxidation catalyst [Ru2II(μ-bpp)(t-trpy)2(H2O)2]3+ (1) with a cobalt cobaltabisdicarbollide monomer (2) generates a new material, “FTO/poly-(1-co-2)”, that is capable of oxidizing water to molecular dioxygen with a turnover number (TN) of 250 (see picture). This represents the best performance ever obtained in a heterogeneous phase using a chemical oxidant.