Redução de CO2 a partir de reações de catálise homogênea com complexos bimetálicos de cobalto
Abstract
This work addresses a topic of significant contemporary relevance: the growing concern about
pollution caused by greenhouse gases, which exacerbate global warming and consequently
result in extreme weather events in various regions worldwide. This study presents important
data on homogeneous catalysis reactions and CO2 electroreduction, aiming to produce
formaldehyde and methanol—compounds that are highly useful in the industry—using a
bimetallic cobalt (II) complex as a catalyst. The research delves into the analysis of metallic
complexes, providing detailed information on the coordination between the metal and the
ligands, and justifying the choice of cobalt as the catalytic metal. In the context of CO2
reduction, different types of catalysis are explored, including photocatalysis and
electrocatalysis, as well as the three main forms of CO2 capture: pre-combustion, post combustion, and direct air capture. By comparing with complexes reported in the literature, it
is concluded that the CO2 reduction process using a bimetallic cobalt (II) complex is feasible.
The presence of two metals in the complex offers significant advantages, enhancing the
selectivity and efficiency of the catalytic process and the presence of the ligand can affect the
stability.
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