Calix[8]arene-based Ni(II) complexes for electrocatalytic CO2 reduction
Por:
Reyes-Mata C.A., Castillo I.
Publicada:
1 ene 2020
Resumen:
The electrochemical behavior and catalytic activity for the electroreduction of CO2 of complexes of Ni(II) containing phenanthroline-based ligands, with or without a calixarene scaffold, were tested. The complexes were characterized by spectroscopic techniques, and their electrocatalytic properties determined by cyclic voltammetry. With water as proton source the complex [(1,5-(2,9-dimethyl-1,10-phenanthro)-p-tert-butylcalix[8]arene)NiCl2] (1) presented a significant increase in current at E = -2.36 V (relative to Ag/AgCl reference electrode) when reduced under an atmosphere of CO2, indicating that an electrocatalytic process occurs. Thus, calix[8]arenes that feature a phenanthroyl moiety as bidentate N-ligands, and an intramolecular proton source in the phenolic –OH groups, afford Ni(II) electrocatalysts for the reduction of CO2. © 2020 Elsevier B.V.
Filiaciones:
Reyes-Mata C.A.:
Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, CU, Ciudad de México, 04510, Mexico
Univ Nacl Autonoma Mexico, Inst Quim, Mexico City 04510, DF, Mexico
Castillo I.:
Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, CU, Ciudad de México, 04510, Mexico
Univ Nacl Autonoma Mexico, Inst Quim, Mexico City 04510, DF, Mexico
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