Home > Research > Publications & Outputs > A new look at metal–carbon hybrids: molecular-s...

Links

Text available via DOI:

View graph of relations

A new look at metal–carbon hybrids: molecular-scale study of covalently grafted gold

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published
Article number144743
<mark>Journal publication date</mark>1/10/2024
<mark>Journal</mark>Electrochimica Acta
Volume500
Publication StatusPublished
Early online date26/07/24
<mark>Original language</mark>English

Abstract

The reliable integration of new nanocarbons in future molecular and hybrid electronics requires mastery of chemical binding between dissimilar materials down to the individual bond. Here, we present a detailed study of covalent grafting of aryl radicals on single crystal Au(111), and investigate their electrochemical stability and oxidative desorption. Copper underpotential deposition and Gaussian deconvolution of its current–potential trace are used to map the thermodynamic and kinetic landscape of the modified Au surface. Scanning tunnelling microscopy in a high-boiling organic solvent suggests that grafting is accompanied by vacancy island formation on the Au surface, while iodide adsorption heals these vacancies and allows high-contrast imaging of individual covalent grafts.