Coatings,
Год журнала:
2024,
Номер
14(12), С. 1582 - 1582
Опубликована: Дек. 18, 2024
In
this
research,
the
high
efficacy
of
Mentha
spicata
L.
extract,
commonly
known
as
spearmint,
a
corrosion
inhibitor
with
an
rate
86.98%
is
highlighted.
Analytical
techniques,
such
scanning
electron
microscopy
(SEM)
to
obtain
detailed
morphological
view,
Fourier
transform
infrared
spectroscopy
(FTIR)
identify
functional
groups
flavonoids,
and
electrochemical
impedance
(EIS)
Tafel
plots
for
assessment,
were
employed.
This
study
pioneers
greener
alternative
traditional
inhibition
methods.
The
distinctive
aspect
research
innovative
spray
coating
application
method
used
deliver
spearmint
extract
onto
structural
steel.
involves
strategic
use
airbrush
coating,
ensuring
uniform
efficient
deposition
organic
inhibitor,
thus
forming
protective
barrier
against
corrosion.
technique
emerging
approach
industrial
natural
inhibitors,
demonstrating
significant
advances
in
resistance
coated
results
not
only
corroborate
but
also
highlight
critical
role
that
sophisticated
techniques
play
improving
their
viability.
methodological
innovation
presents
pathway
sustainable
practices
management,
prioritizing
environmental
protection
ecological
footprint
reduction
quest
mitigation.
Results in Surfaces and Interfaces,
Год журнала:
2024,
Номер
14, С. 100184 - 100184
Опубликована: Янв. 13, 2024
Corrosion
inhibition
performances
of
two
new
pyrazole
derivatives,
namely
5-(4-dimethylamino)phenyl)-3-(4-dimethylamino)styryl)-4,5-dihydro-1H-pyrazole-1-carbothio
amide
(P1)
and
5-(4-dimethylamino)phenyl)-3-phenyl-4,5-dihydro-1H-pyrazole-1-carbothio
(P2)
against
the
corrosion
carbon
steel
in
acidic
medium
are
theoretically
investigated
by
combination
density
functional
theory
with
molecular
dynamics
approach.
Additionally,
toxicity
solubility
aforementioned
molecules
were
investigated.
Quantum
chemical
parameters
considered
(calculated
energy
levels
HOMO
LUMO
orbitals
as
well
gap
between
them,
hardness,
softness,
potential,
electronegativity,
electrophilicity
index,
nucleophilicity,
electro
donating
power,
accepting
polarizability,
dipole
moment,
metal-inhibitor
interaction
energy,
fraction
electrons
transferred
from
inhibitors
to
metal
surface,
back-donation
Fukui
indices)
calculated
at
B3LYP/SVP,
CAM-B3lyp/TZVP
ωB97XD/Def2-TZVP
theory.
Comparative
calculations
performed
gaseous
phase
aqueous
solutions.
The
adsorption
behavior
mentioned
on
Fe
(110)
surface
was
dynamics.
Both
demonstrates
high
energies
low
solubility.
P1
is
found
be
more
efficient
hydrochloric
acid,
whereas
P2
molecule
sulfuric
acid.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Июль 23, 2024
The
study
was
designed
to
explore
the
corrosion
prevention
capabilities
of
Citrullus
colocynthis
seeds
alkaloid-rich
extract
(CSEA)
on
MS
in
a
1
M
HCl
environment
by
use
electrochemical
and
theoretical
methods.
Notably,
Electrochemical
Impedance
Spectroscopy
(EIS)
potentiodynamic
polarization
were
used
probe
impact
immersion
time
temperature.
Energy-dispersive
X-ray
spectroscopy
(EDX)
spanning
electron
microscopy
(SEM)
confirm
presence
protective
layer
substrate
surface.
Density
functional
theory
(DFT)
method
optimize
investigated
species
B3LYP/6-31
+
G(d,
p)
level
theory.
global
local
quantum
chemical
reactivity
descriptors
calculated
inhibition
efficiency
identify
most
favorable
sites
for
electrophilic
nucleophilic
attacks.
Monte
Carlo
(MC)
molecular
dynamics
simulation
(MDS)
methods
interactions
between
inhibitor
metal
Noteworthy,
results
showed
that
CSEA
exhibited
an
impressive
efficiency,
which
reached
94.3%
with
concentration
2
g/L
at
298
K.
Potentiodynamic
revealed
acted
as
mixed-type
inhibitor.
Nyquist
graphs
charge-transfer
resistance
dæouble-layer
capacitance
both
rised
increasing
concentration,
suggesting
better
efficiency.
Langmuir
adsorption
isotherm
is
well-aligned
compounds.
Importantly,
all
aforementioned
agreement
experimental
findings.
outcome
present
work
supported
using
ecofriendly
agents
prevent
corrosion.
Coatings,
Год журнала:
2025,
Номер
15(4), С. 390 - 390
Опубликована: Март 26, 2025
This
study
examined
the
ability
of
a
coating
made
from
nano-CeO2-doped
montmorillonite
(NCM)
nanoclay
to
inhibit
corrosion
on
carbon
steel
when
immersed
in
1
M
HCl
solution.
The
was
produced
by
combining
CeO2
nanoparticles
with
nanoclay,
and
its
characteristics
were
analyzed
using
SEM
XRD
techniques.
inhibition
effects
assessed
through
weight
loss
potentiodynamic
polarization
(PDP)
methods.
findings
indicated
that
NCM
serves
as
an
effective
inhibitor,
exhibiting
mixed-type
behavior
impedes
both
anodic
cathodic
reactions
surface
acidic
environment.
investigation
demonstrated
achieved
remarkable
efficiencies
95%
(using
method)
99%
PDP
utilized
capture
images
at
various
phases
process
for
mild
steel.
employed
analyze
structural
properties
coating’s
nanoparticles.
modified
eco-friendly
has
enhanced
resistance
environments.
