Coatings,
Journal Year:
2024,
Volume and Issue:
14(12), P. 1556 - 1556
Published: Dec. 12, 2024
Bio-based
corrosion
inhibitor
formulations
are
incredibly
promising
for
mitigating
corrosion,
offering
an
environmentally
sustainable
approach
while
providing
effective
protection
against
material
degradation.
This
study
explores
the
inhibition
potential
of
Ammi
visnaga
essential
oil
(AVEO)
on
carbon
steel
(CS)
in
a
1
mol/L
hydrochloric
acid
(HCl)
medium,
combining
electrochemical
impedance
spectroscopy
(EIS),
potentiodynamic
polarization
(PDP),
linear
resistance
(LPR),
weight
loss
(WL)
analysis,
density
functional
theory
(DFT),
density-functional
tight-binding
(DFTB)
modeling,
and
molecular
dynamics
(MD)
simulation.
The
AVEO
was
extracted
through
hydrodistillation,
its
chemical
profile
characterized
to
identify
key
active
compounds.
EIS
PDP
results
revealed
that
effectively
inhibited
formation
protective
layer
surface,
exhibiting
efficiencies
up
84%
at
3
g/L,
with
mixed-type
action.
Nyquist
plots
displayed
increased
concentration,
indicating
enhanced
surface
coverage
reduction
sites.
WL
studies
further
supported
these
findings,
showing
decreased
rates
proportional
temperature
variation
showed
performance
higher
temperatures.
Scanning
electron
microscope
(SEM)
analysis
CS
upon
addition
HCl
medium.
DFTB
modeling
MD
simulations
were
employed
evaluate
interaction
between
major
constituents
insight
into
adsorption
behavior
electronic
contributions
molecule–metal
interface.
combined
experimental
theoretical
findings
indicate
holds
promise
as
natural,
eco-friendly
inhibitor,
implications
metal
acidic
environments.
RSC Advances,
Journal Year:
2024,
Volume and Issue:
14(18), P. 12533 - 12555
Published: Jan. 1, 2024
This
study
investigates
the
corrosion
inhibition
potential
of
3,4-dimethoxy
phenyl
thiosemicarbazone
(DMPTS)
for
copper
in
1
M
hydrochloric
acid
(HCl)
solutions,
aiming
to
disclose
mechanism
behind
its
protective
action.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(2), P. 272 - 272
Published: Jan. 11, 2025
In
recent
years,
the
anti-corrosive
properties
of
natural
extracts
as
environmentally
friendly
inhibitors
have
gained
considerable
interest.
This
study
evaluates
potential
Marjoram
(Origanum
majorana
L.)
essential
oil
(OML),
collected
from
Salé,
Morocco,
a
corrosion
inhibitor
for
mild
steel
in
1
M
HCl
medium.
The
protection
performance
OML
was
assessed
using
various
electrochemical
techniques,
including
potentiodynamic
polarization
(PDP)
and
impedance
spectroscopy
(EIS),
well
weight
loss
method.
influence
concentration
temperature
on
inhibition
were
investigated.
demonstrated
pronounced
inhibitory
benefits
via
increasing
resistance
corrosive
solution,
thus
reducing
rate
to
0.11
mg
cm−2
h−1
efficiency
87.1%
at
an
500
ppm.
PDP
confirmed
that
works
mixed-type
with
cathodic
supremacy.
EIS
revealed
charge
transfer
mechanism
is
main
controlling
factor
process.
thermodynamic
parameters
suggested
key
role
physisorption
inhibition,
following
Langmuir
isotherm.
Importantly,
SEM
EDX
analyses
formation
protective
layer
extract
onto
surface,
which
shields
surface
species.
owed
functional
group-rich
phytochemicals
OML.
Therefore,
development
bio-based
not
only
step
towards
more
eco-friendly
industrial
practices,
but
also
meets
growing
demand
sustainable
materials
world
constrained
resources.
ACS Omega,
Journal Year:
2023,
Volume and Issue:
8(49), P. 47224 - 47238
Published: Dec. 1, 2023
Natural
and
fragrant
compounds,
essential
oils
(EOs)
extracted
from
plants
through
hydrodistillation,
are
gaining
popularity
as
eco-friendly
sustainable
agents
to
protect
metals
alloys
corrosion
in
acidic
environments.
This
research
focused
on
extracting
characterizing
an
EO
obtained
the
Cuminum
cyminum
(CC)
plant
native
India.
The
study
aimed
evaluate
inhibitory
properties
of
this
mild
steel
a
0.5
M
HCl
solution
at
different
concentrations.
Various
analytical
techniques,
including
potentiodynamic
polarization
curves,
electrochemical
impedance
spectroscopy,
optical
microscopy,
infrared
proton
magnetic
resonance,
were
employed
assess
effectiveness
extract.
Our
findings
indicate
that
L
(CCL)
extract
effectively
reduces
hydrochloric
acid
with
inhibition
efficiency
ranging
79.69
98.76%.
optimal
concentration
was
2
g/L
EO,
surface
analysis
confirmed
formation
protective
layer.
Furthermore,
our
results
suggest
inhibitor
binds
metal
charge-transfer
process,
creating
film.
Finally,
we
utilized
theoretical
calculations
molecular
dynamics
simulations
elucidate
mechanism
both
global
local
scale.
