Fabrication of a Highly Tunable Graphene Oxide Composite
through Layer-by-Layer Assembly of Highly Crystalline Polyaniline
Nanofibers and Green Corrosion Inhibitors: Complementary Experimental
and First-Principles Quantum-Mechanics Modeling Approaches
B. Ramezanzadeh
P. Kardar
G. Bahlakeh
Y. Hayatgheib
M. Mahdavian
10.1021/acs.jpcc.7b04323.s001
https://acs.figshare.com/articles/journal_contribution/Fabrication_of_a_Highly_Tunable_Graphene_Oxide_Composite_through_Layer-by-Layer_Assembly_of_Highly_Crystalline_Polyaniline_Nanofibers_and_Green_Corrosion_Inhibitors_Complementary_Experimental_and_First-Principles_Quantum-Mechanics_Modeling_Approaches/5386879
Three-dimensional
graphene oxide (GO) nanosheets were utilized
as a unique versatile platform for the fabrication of an effective
anticorrosion system through a layer-by-layer (L-<i>b</i>-L) assembly technique. In this way, the highly ordered crystalline
polyaniline (Pani) nanofibers and green corrosion inhibitors (GIs)
were synthesized. Sustainable corrosion inhibitors were obtained from
the extract of <i>Urtica Dioica</i> leaves. The GO-Pani-GI
nanosheets were characterized by Fourier transform infrared spectroscopy,
high resolution–transmission electron microscopy, field-emission
scanning electron microscopy, UV–visible spectroscopy, and
thermal gravimetric analysis. In addition, the adsorption features
of Pani onto GO sheets and its binding propensity against GIs were
assessed by applying first-principles quantum-mechanics (QM) modeling
approaches. The anticorrosion properties of the GO-Pani-GI were then
examined using electrochemical impedance spectroscopy and polarization
test. The results achieved from QM modeling studies demonstrated that
the Pani strongly anchored to GO surfaces via physisorption mechanism.
Computations further declared that all GIs interacted with Pani through
intermolecular H-bonds. Moreover, the experimental investigations
revealed the superior anticorrosion performance of multilayered graphene
nanocomposites.
2017-08-25 00:00:00
Green Corrosion Inhibitors
modeling approaches
anticorrosion properties
assembly technique
electrochemical impedance spectroscopy
physisorption mechanism
Layer-by-Layer Assembly
gravimetric analysis
Urtica Dioica
corrosion inhibitors
anticorrosion performance
GIs interacted
GO-Pani-GI nanosheets
anticorrosion system
UV
Tunable Graphene Oxide Composite
Sustainable corrosion inhibitors
polarization test
first-principles quantum-mechanics
adsorption features
field-emission scanning electron microscopy
graphene nanocomposites
Crystalline Polyaniline Nanofibers
First-Principles Quantum-Mechanics Modeling Approaches Three-dimensional graphene oxide
binding propensity
QM modeling studies