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Electrodeposition of Silver Nanoparticles on Reduced Graphene Functionalized by Pyridine‐Pyridazine Units: Application to Surface‐Enhanced Raman Spectroscopy and Electrocatalysis
Author(s) -
Rus Yahdi Bin,
Galmiche Laurent,
Audebert Pierre,
Courty Alexa,
Maisonhaute Emmanuel,
Miomandre Fabien
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201802130
Subject(s) - electrocatalyst , graphene , raman spectroscopy , materials science , dispersity , nanoparticle , pyridazine , surface enhanced raman spectroscopy , nanotechnology , platinum nanoparticles , chemical engineering , pyridine , nanocomposite , electrode , platinum , catalysis , electrochemistry , chemistry , organic chemistry , polymer chemistry , raman scattering , physics , engineering , optics
A new and versatile method to prepare Ag nanoparticles on functionalized graphene sheets is described. In a first step, pyridine‐pyridazine units are introduced on graphene sheets by cycloaddition reaction with a tetrazine derivative. Then the material is coated on an electrode and electrodeposition is carried out to generate silver nanoparticles in a one‐step electroreduction process. The applied potential signal is shown to influence the size and dispersity of the particles in the composite. While larger particles are active in improving sensitivity of Surface‐Enhanced Raman Spectroscopy, smaller ones can be efficiently used in electrocatalysis, like for oxygen reduction. Both effects are demonstrated to highlight the versatility of the applications of these easily prepared nanocomposites.