Core/shell, protuberance-free multiwalled carbon nanotube/polyaniline nanocomposites via interfacial chemistry of aryl diazonium salts.
Highly uniform core-shell like multi-walled carbon nanotubes-polyaniline (MWCNT-PANI) nanocomposites were prepared in two steps (i) surface modification of MWCNTs with a 4-aminodiphenylamine group via in situ diazonium generation process; and (ii) polymerization of aniline onto surface modified MWCNTs. This functionalization helped to easily disperse the MWCNTs in acidic solutions; hence it is suitable for the chemical oxidative polymerization of aniline. It was found that MWCNT-PANI nano-composites with higher MWCNTs loading yield PANI chains with more quinoid units than the pure PANI, which results in significant improvement in the conductivity of the composites. This facile approach of synthesizing core-shell nanocomposites highlights the efficiency of the interfacial chemistry of aryl diazonium salts in generating conductive polymer/MWCNT nanocomposites with enhanced conductivity and high surface area.
Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR CNRS 7086, 15 rue J-A de Baïf, Paris 75013, France; Ecole Militaire Polytechnique, BP 17, Bordj El Bahri 16111, Alger, Algeria.
Ahmed
A
Mekki
Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR CNRS 7086, 15 rue J-A de Baïf, Paris 75013, France; Technical Physics Division, Bhabha Atomic Research Centre (BARC), Mumbai 400085, India.
Soumen
S
Samanta
Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR CNRS 7086, 15 rue J-A de Baïf, Paris 75013, France; Technical Physics Division, Bhabha Atomic Research Centre (BARC), Mumbai 400085, India.
Ajay
A
Singh
Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR CNRS 7086, 15 rue J-A de Baïf, Paris 75013, France.
Zakaria
Z
Salmi
Ecole Militaire Polytechnique, BP 17, Bordj El Bahri 16111, Alger, Algeria. Electronic address: rachid_mahm@yahoo.fr.
Rachid
R
Mahmoud
Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR CNRS 7086, 15 rue J-A de Baïf, Paris 75013, France. Electronic address: chehimi@univ-paris-diderot.fr.
Mohamed M
MM
Chehimi
Technical Physics Division, Bhabha Atomic Research Centre (BARC), Mumbai 400085, India. Electronic address: dkAswal@yahoo.com.
Dinesh K
DK
Aswal
Aryl diazonium salts; Carbon nanotubes; Nanocomposites; Polyaniline