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Synthesis of Ruthenium-based Water Oxidation Catalysts and Mechanistic Study
KTH, School of Chemical Science and Engineering (CHE).
2015 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Two series of new mononuclear ruthenium complexes with hydrophobic or hydrophilic ligands [Ru(bda)L2] and [Ru(pdc)L3] (H2bda = 2,2'-bipyridine-6,6'-dicarboxylic acid; H2pdc = 2,6-pyridinedicarboxylic acid; L = pyridyl ligands) were synthesized and their electrochemical properties and catalytic activity toward water oxidation were examined. It was revealed that the hydrophobic ligands introduced to [Ru(bda)L2 ] improved the catalytic performance, ahnost twofold TON and TOF values were achieved compared to the [Ru(bda)] catalyst with hydrophilic ligands. The cyclic voltammogram of [Ru(bda)L2] exhibited marginal difference between the catalysts with hydrophobic ligands and hydrophilic ones, implying that the hydrophobic ligands promoted the catalytic activity by :lacilitating formation of a reaction intermediate dimer.

Place, publisher, year, edition, pages
2015. , 27 p.
Keyword [en]
Ruthenium Complex, Water Oxidation Catalyst, Electrochemistry, Oxygen Evolution, Pourbaix Diagram
National Category
Organic Chemistry
URN: urn:nbn:se:kth:diva-173843OAI: diva2:855425
Available from: 2015-09-21 Created: 2015-09-21 Last updated: 2015-09-22Bibliographically approved

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