0000000000643360

AUTHOR

Maurizio Passaponti

showing 2 related works from this author

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

2021

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.

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 ChemistryInorganica Chimica Acta
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MWCNTs-Supported Pd(II) Complexes with High Catalytic Efficiency in Oxygen Reduction Reaction in Alkaline Media

2018

We report here the remarkable catalytic efficiency observed for two Pd(II) azamacrocyclic complexes supported on multiwalled carbon nanotubes (MWCNTs) toward oxygen reduction reactions. Beyond a main (90%) 4e

ChemistryPhysical and Theoretical Chemistry; Inorganic Chemistry; fuel cells02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnologyMultiwalled carbon01 natural sciencesOxygen reduction0104 chemical sciencesInorganic ChemistryChemical engineeringOxygen reduction reactionFuel cellsPhysical and Theoretical ChemistryCatalytic efficiency0210 nano-technology
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