Article Dans Une Revue European Journal of Inorganic Chemistry Année : 2020

Catalytic Reduction of Oxygen by a Copper Thiosemicarbazone Complex

Résumé

The new copper(II) thiosemicarbazone complex CuL (H2L = 4‐{bis[4‐(p‐methoxyphenyl)‐thiosemicarbazone]}‐2,3‐butane) was synthesized and structurally characterized. Its electrochemical behavior in N,N‐dimethylformamide (DMF) was examined. This complex proved active for homogeneous oxygen reduction reaction (ORR) in DMF in the presence of organic acids. The activity and selectivity for ORR were found to be dependent on the nature of the proton source (phenol or acetic acid). This study confirms the previously reported free energy linear correlation between selectivity and overpotential requirement [Passard et al., J. Am. Chem. Soc. 2016, 138, 2925–2928] and suggests that additional descriptors are required for a full understanding of the catalytic ORR behaviour.

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Dates et versions

hal-03179025 , version 1 (24-03-2021)
hal-03179025 , version 2 (10-05-2021)

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Tatiana Straistari, Adina Morozan, Sergiu Shova, Marius Réglier, Maylis Orio, et al.. Catalytic Reduction of Oxygen by a Copper Thiosemicarbazone Complex. European Journal of Inorganic Chemistry, 2020, 2020 (48), pp.4549-4555. ⟨10.1002/ejic.202000869⟩. ⟨hal-03179025v2⟩
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