The RuIII(EDTA) complex (EDTA4- = ethylenediaminetetraacetate) is prospective in many ways and has unique features that make it significant for catalytic applications. The progress of RuIII(EDTA) in its application towards carbon dioxide fixation unraveling the mechanistic information has not been systematically reviewed to date. Hence, the subject of this review comprises the most recent advances in RuIII(EDTA) chemistry with regard to its catalytic application in the reduction of CO2/HCO3-. This review mainly covers the most intriguing function of the RuIII(EDTA) complex as catalyst or mediator in catalytic, electro-catalytic and photocatalytic conversion of bicarbonate to formate selectively. Details of the reaction mechanisms have been discussed pertaining to the activation and reduction of CO2/HCO3- in the presence of the Ru(EDTA) catalyst in aqueous media, highlighting some most recent investigations on such systems.
Keywords: Ruthenium complex, bicarbonate reduction, catalysis, electro-catalysis, photo-catalysis, Electrochemical Reduction
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