Infrared irradiation controlled decoration of tricarboxylic and monocarboxylic aryl diazonium functionalized multi-wall carbon nanotubes with iron nanoparticles

Bhakta, A. K. (Speaker)

Activity: Talk or presentation typesOral presentation

Description

A simple and efficient method to decorate multi- wall carbon nanotubes (MWCNTs) with iron nanoparticles using iron (II) acetate as iron source was successfully achieved. Purified MWCNTs are first functionalized with mono- and tricarboxylic aryl diazonium salts generated in-situ, then iron nanoparticles are formed using iron (II) acetate. Infrared (IR) irradiation has played a very important role in homogeneously decorating MWCNTs with iron nanoparticles. The decorated nanoparticles on MWCNTs were characterized by different techniques, such as XPS, TEM, PXRD, FE-SEM, and EDX. Homogeneous distribution of iron nanoparticles on MWCNTs is evidenced with an average diameter of 3nm and 4nm for monocarboxylic and tricarboxylic functionalizations, respectively. Obtaining such a small size homogeneously distributed iron nanoparticles on MWCNTs is the main achievement of this work. Furthermore, nanoparticles based on tricarboxylic aryl diazonium functions, used for the first time to functionalize CNTs, are more crystalline and essentially in the metallic state. The as-prepared iron nanoparticles decorated MWCNTs are expected to have synergistic effects and hence would be of use in many potential applications such as energy storage and conversion system, electronic devices, chemical and biosensor.
Period28 Mar 2017 - 29 Mar 2017
Held atÉcole Militaire Polytechnique, Algeria
Degree of RecognitionInternational