0000000000286155

AUTHOR

Walter Giurlani

0000-0002-9949-3751

showing 2 related works from this author

Redox-Active Ferrocene grafted on H-Terminated Si(111): Electrochemical Characterization of the Charge Transport Mechanism and Dynamics

2019

AbstractElectroactive self-assembled monolayers (SAMs) bearing a ferrocene (Fc) redox couple were chemically assembled on H-terminated semiconducting degenerate-doped n-type Si(111) substrate. This allows to create a Si(111)|organic-spacer|Fc hybrid interface, where the ferrocene moiety is covalently immobilized on the silicon, via two alkyl molecular spacers of different length. Organic monolayer formation was probed by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS) and X-ray photoelectron spectroscopy (XPS) measurements, which were also used to estimate thickness and surface assembled monolayer (SAM) surface coverage. Atomic force microscopy (AFM) measurements all…

0301 basic medicineMaterials for devicesMaterials sciencelcsh:Medicine-Surface engineeringPhotochemistryRedoxArticle03 medical and health scienceschemistry.chemical_compoundElectron transfer0302 clinical medicineX-ray photoelectron spectroscopyMonolayerSi(111); Charge Transport Mechanism and Dynamicslcsh:ScienceAlkylchemistry.chemical_classificationMultidisciplinarylcsh:RChemistry030104 developmental biologychemistryFerrocenelcsh:QCyclic voltammetry030217 neurology & neurosurgery
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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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