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  • Shatskiy, AndreyStockholms universitet,Institutionen för organisk kemi,Stockholm Univ, Arrhenius Lab, Dept Organ Chem, Svante Arrhenius Vag 16C, S-10691 Stockholm, Sweden. (author)

Electrochemically Driven Water Oxidation by a Highly Active Ruthenium-Based Catalyst

  • Article/chapterEnglish2019

Publisher, publication year, extent ...

  • 2019-04-12
  • Wiley,2019
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-171162
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-171162URI
  • https://doi.org/10.1002/cssc.201900097DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-255333URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • QC 20190806
  • The highly active ruthenium-based water oxidation catalyst [Ru-X(mcbp)(OHn)(py)(2)] [mcbp(2-)=2,6-bis(1-methyl-4-(carboxylate)benzimidazol-2-yl)pyridine; n=2, 1, and 0 for X=II, III, and IV, respectively], can be generated in a mixture of Ru-III and Ru-IV states from either [Ru-II(mcbp)(py)(2)] or [Ru-III(Hmcbp)(py)(2)](2+) precursors. The precursor complexes are isolated and characterized by single-crystal X-ray analysis, NMR, UV/Vis, EPR, and FTIR spectroscopy, ESI-HRMS, and elemental analysis, and their redox properties are studied in detail by electrochemical and spectroscopic methods. Unlike the parent catalyst [Ru(tda) (py)(2)] (tda(2-)=[2,2:6,2-terpyridine]-6,6-dicarboxylate), for which full transformation into the catalytically active species [Ru-IV(tda)(O)(py)(2)] could not be carried out, stoichiometric generation of the catalytically active Ru-aqua complex [Ru-X(mcbp)(OHn)(py)(2)] from the Ru-II precursor was achieved under mild conditions (pH7.0) and short reaction times. The redox properties of the catalyst were studied and its activity for electrocatalytic water oxidation was evaluated, reaching a maximum turnover frequency (TOFmax) of around 40000s(-1) at pH9.0 (from foot-of-the-wave analysis), which is comparable to the activity of the state-of-the-art catalyst [Ru-IV(tda)(O)(py)(2)].

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Bardin, Andrey A.Stockholms universitet,Institutionen för organisk kemi,Stockholm Univ, Arrhenius Lab, Dept Organ Chem, Svante Arrhenius Vag 16C, S-10691 Stockholm, Sweden.;Russian Acad Sci, Inst Problems Chem Phys, Academician Semenovs Prospect 1g, Moscow 142432, Russia. (author)
  • Oschmann, MichaelStockholms universitet,Institutionen för organisk kemi,Stockholm Univ, Arrhenius Lab, Dept Organ Chem, Svante Arrhenius Vag 16C, S-10691 Stockholm, Sweden.(Swepub:su)mios3297 (author)
  • Matheu, RocBIST, Inst Chem Res Catalonia ICIQ, Avinguda Paisos Catalans 16, Tarragona 43007, Spain. (author)
  • Benet-Buchholz, JordiBIST, Inst Chem Res Catalonia ICIQ, Avinguda Paisos Catalans 16, Tarragona 43007, Spain. (author)
  • Eriksson, LarsStockholms universitet,Institutionen för material- och miljökemi (MMK),Stockholm Univ, Arrhenius Lab, Dept Mat & Environm Chem, Svante Arrhenius Vag 16C, S-10691 Stockholm, Sweden.(Swepub:su)lerik (author)
  • Kärkäs, Markus D.KTH,Organisk kemi(Swepub:kth)u187ii6z (author)
  • Johnston, EricStockholms universitet,Institutionen för organisk kemi,Stockholm Univ, Arrhenius Lab, Dept Organ Chem, Svante Arrhenius Vag 16C, S-10691 Stockholm, Sweden.;Sigrid Therapeut AB, Sankt Goransgatan 159, S-11217 Stockholm, Sweden. (author)
  • Gimbert-Suriñach, CarolinaBIST, Inst Chem Res Catalonia ICIQ, Avinguda Paisos Catalans 16, Tarragona 43007, Spain. (author)
  • Llobet, AntoniBIST, Inst Chem Res Catalonia ICIQ, Avinguda Paisos Catalans 16, Tarragona 43007, Spain.;Univ Autonoma Barcelona, Dept Quim, E-08193 Barcelona, Spain. (author)
  • Åkermark, BjörnStockholms universitet,Institutionen för organisk kemi,Stockholm Univ, Arrhenius Lab, Dept Organ Chem, Svante Arrhenius Vag 16C, S-10691 Stockholm, Sweden.(Swepub:su)baker (author)
  • Stockholms universitetInstitutionen för organisk kemi (creator_code:org_t)

Related titles

  • In:ChemSusChem: Wiley12:10, s. 2251-22621864-56311864-564X

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