Premium
Enhanced Electron Transfer Properties of Carbon Spheres Chains via Electrochemical Functionalization
Author(s) -
Hamoudi Zéhira,
Mohamedi Mohamed
Publication year - 2011
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201100575
Subject(s) - surface modification , electrochemistry , electron transfer , carbon fibers , ferrocyanide , nitric acid , materials science , electrode , carbon nanotube , chemical engineering , electrocatalyst , chemical modification , chemistry , inorganic chemistry , nanotechnology , photochemistry , polymer chemistry , composite material , composite number , engineering
Electrochemical functionalization via electrochemical oxidation in nitric acid of various concentrations (0.1 M, 0.2 M and 2 M) was employed to enrich the surface of carbon sphere chains (CSCs) with some useful physico‐chemical properties such as hydrophilicity, oxygen functionalities and electron transfer properties. The functionalization process in 2 M HNO 3 solution led to the creation of an original hybrid material made of carbon sphere chains‐carbon nanobuds. This material displayed a prominent response towards the electrocatalytic oxidation of ferrocyanide with a peak current three times and twice superior to those delivered by pristine CSC and multiwalled carbon nanotubes (MWCNTs) electrodes, respectively.