6533b829fe1ef96bd12897f8

RESEARCH PRODUCT

Linear, tripodal, macrocyclic: Ligand geometry and ORR activity of supported Pd(II) complexes

Antonio BianchiMaurizio PassapontiEnrique García-españaNicola CalisiElena Salvador SerranoMassimo InnocentiEstefanía Delgado-pinarLeonardo LariVlado K. LazarovWalter GiurlaniMatteo Savastano

subject

Pyrimidine010405 organic chemistryLigandProtonation010402 general chemistry01 natural sciences0104 chemical sciencesCathode catalystInorganic ChemistryMetalchemistry.chemical_compoundAdsorptionX-ray photoelectron spectroscopychemistryvisual_artPolymer chemistryMaterials Chemistryvisual_art.visual_art_mediumMacrocyclic ligandPhysical and Theoretical Chemistry

description

Abstract The novel ligand H3L designed to spontaneously adsorb onto MWCNT via electron-deficient pyrimidine residues and bind metal cations is used to prepare an oxygen reduction reaction (ORR) cathode catalyst based on supported Pd(II) complexes. Herein we report the synthesis of the ligand, its solution behaviour (protonation constants, binding constants for the test cation Cu(II), UV evidence of Cu(II) and Pd(II) complexes formation) and ORR performances together with XPS and STEM characterization. Tripodal nature of the H3L ligand frame it in-between previously studied macrocyclic and linear open chain ligands, allowing to draw meaningful comparisons.

yearjournalcountryeditionlanguage
2021-04-01Inorganica Chimica Acta
https://doi.org/10.1016/j.ica.2021.120250