Efficient electrocatalytic oxidation ofp-phenylenediamine using a novel PANI/ZnO anchored bio-reduced graphene oxide nanocomposite

Abstract

Herein, a novel approach was reported for the fabrication of a polyaniline/ZnO-anchored bio-reduced graphene oxide nanocomposite for the efficient electrocatalytic oxidation of p-phenylenediamine.

A facile electrochemical sensor based on a composite of electrochemically reduced graphene oxide and a PEDOT:PSS modified glassy carbon electrode for uric acid detection

“…29 Several works in the past have been reported the better performance of sensing application when rGO combined with conductive polymer (CPs) such as polyaniline [30][31] , polypyrrole 32 , and p-phenylenediamine. 33 Therefore, it is interesting to combine the rGO material with CPs to reduce the accumulation phenomena within graphene layer as well as to enhance the electrocatalytic properties of the modified electrode for sensing purposes. Among CPs, Poly (3,4-ethylenedioxythiophene):poly(styrenesulfonate) or PEDOT:PSS has been actively investigated to be employed as an electrode modifier due to its high conductivity 34 , a broad electrochemical window and good chemical stability 35 , and good film-forming process.…”

Azopyridine as a Linker Molecule in Polyaniline-Grafted Graphene Oxide Nanocomposite Electrodes for Asymmetric Supercapacitors

“…The deconvolution spectrum of O 1s can be fitted with three distinct peaks. The peaks positioned at 531, 532.3, and 533 eV correspond to C–O, CO, and C–OH, respectively. , The XPS analysis thus confirms the successful formation of the PANI/GO-Azo nanocomposite. The introduced azopyridine derivative as a linker and spacer reduces the agglomeration between the GO layers.…”

Electrochemical approach for recognition and quantification ofp-phenylenediamine: a review

“…cyclic voltammetry, square wave voltammetry etc. ), 4,[56][57][58][59][60][61][62][63][64][65][66] nuclear resonance spectrometry (NMR) 67 etc. and some are still in its primary stage.…”

“…The prepared electrode was also utilized for the real sample analysis with good recovery results. 65 Recently, in the year 2021, our group reported a selective electrochemical sensor based on a newly synthesized bimetallic nanocomposite 'ionic liquid functionalized graphene oxide wrapped Cu-Ag nanoalloy particles'. Here, the synergism between Cu-Ag nanoalloy and ionic liquid-GO offers improved active surface area and boosted electron transportation, which helped in excellent electrocatalytic selective detection of p-PDA at 0.21 V (vs. Ag/AgCl) even in the presence of other isomers o-PDA and m-PDA.…”

“…64 In a continuation of these efforts, our group has also prepared different nanocomposite material modified electrodes for the sensitive and selective detection of p-PDA. 65,66 In 2019, the construction of a new nanocomposite 'polyaniline/ZnO-anchored bio-reduced graphene oxide (PANI/ZnO-starch-rGO/GCE)' was undertaken through π-π interaction and electrostatic interaction. Firstly, bio-reduction of GO was performed by starch and it was further doped along with ZnO in in situ chemical polymerization of aniline for the preparation of a nanocomposite.…”