Sulphur vs NH Group: Effects on the CO₂ Electroreduction Capability of Phenylenediamine-Cp Cobalt Complexes.

ABSTRACT: The cobalt complex (I) with cyclopentadienyl and 2-aminothiophenolate ligands was investigated as a homogeneous catalyst for electrochemical CO₂ reduction. By comparing its behavior with an analogous complex with the phenylenediamine (II), the effect of sulfur atom as a substituent has been evaluated. As a result, a positive shift of the reduction potential and the reversibility of the corresponding redox process have been observed, also suggesting a higher stability of the compound with sulfur. Under anhydrous conditions, complex I showed a higher current enhancement in the presence of CO₂ (9.41) in comparison with II (4.12). Moreover, the presence of only one -NH group in I explained the difference in the observed increases on the

SUBMITTER: Melis N 

PROVIDER: S-EPMC10005266 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature