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Electrochemically D...
Electrochemically Driven Water Oxidation by a Highly Active Ruthenium-Based Catalyst
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- Shatskiy, Andrey (author)
- Stockholms universitet,Institutionen för organisk kemi,Stockholm Univ, Arrhenius Lab, Dept Organ Chem, Svante Arrhenius Vag 16C, S-10691 Stockholm, Sweden.
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- Bardin, Andrey A. (author)
- 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.
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- Oschmann, Michael (author)
- Stockholms universitet,Institutionen för organisk kemi,Stockholm Univ, Arrhenius Lab, Dept Organ Chem, Svante Arrhenius Vag 16C, S-10691 Stockholm, Sweden.
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- Matheu, Roc (author)
- BIST, Inst Chem Res Catalonia ICIQ, Avinguda Paisos Catalans 16, Tarragona 43007, Spain.
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- Benet-Buchholz, Jordi (author)
- BIST, Inst Chem Res Catalonia ICIQ, Avinguda Paisos Catalans 16, Tarragona 43007, Spain.
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- Eriksson, Lars (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK),Stockholm Univ, Arrhenius Lab, Dept Mat & Environm Chem, Svante Arrhenius Vag 16C, S-10691 Stockholm, Sweden.
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- Kärkäs, Markus D. (author)
- KTH,Organisk kemi
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- Johnston, Eric (author)
- Stockholms 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.
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- Gimbert-Suriñach, Carolina (author)
- BIST, Inst Chem Res Catalonia ICIQ, Avinguda Paisos Catalans 16, Tarragona 43007, Spain.
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- Llobet, Antoni (author)
- BIST, Inst Chem Res Catalonia ICIQ, Avinguda Paisos Catalans 16, Tarragona 43007, Spain.;Univ Autonoma Barcelona, Dept Quim, E-08193 Barcelona, Spain.
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- Åkermark, Björn (author)
- Stockholms universitet,Institutionen för organisk kemi,Stockholm Univ, Arrhenius Lab, Dept Organ Chem, Svante Arrhenius Vag 16C, S-10691 Stockholm, Sweden.
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(creator_code:org_t)
- 2019-04-12
- 2019
- English.
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In: ChemSusChem. - : Wiley. - 1864-5631 .- 1864-564X. ; 12:10, s. 2251-2262
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- 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
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- artificial photosynthesis
- electrocatalysis
- homogeneous catalysis
- ruthenium
- water oxidation
- Green & Sustainable Science & Technology
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Shatskiy, Andrey
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Bardin, Andrey A ...
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Oschmann, Michae ...
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Matheu, Roc
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Benet-Buchholz, ...
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Eriksson, Lars
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Kärkäs, Markus D ...
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Johnston, Eric
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Gimbert-Suriñach ...
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Llobet, Antoni
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Åkermark, Björn
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
- Articles in the publication
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ChemSusChem
- By the university
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Stockholm University
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Royal Institute of Technology