Green Corrosion Inhibitors for Metal and Alloys Protection in Contact with Aqueous Saline
Materials,
Journal Year:
2024,
Volume and Issue:
17(16), P. 3996 - 3996
Published: Aug. 11, 2024
Corrosion
is
an
inevitable
and
persistent
issue
that
affects
various
metallic
infrastructures,
leading
to
significant
economic
losses
safety
concerns,
particularly
in
areas
near
or
contact
with
saline
solutions
such
as
seawater.
Green
corrosion
inhibitors
are
compounds
derived
from
natural
sources
biodegradable
environments,
offering
a
promising
alternative
their
conventional
counterparts.
Despite
potential,
green
still
face
several
limitations
challenges
when
exposed
NaCl
environments.
This
comprehensive
review
delves
into
these
associated
challenges,
shedding
light
on
the
progress
made
addressing
issues
potential
future
developments
tools
management.
Explicitly
following
aspects
covered:
(1)
attributes
of
inhibitors,
(2)
general
mechanism,
(3)
mechanism
inhibition
NaCl,
(4)
typical
electrochemical
surface
characterization
techniques,
(5)
theoretical
simulations
by
Density
Functional
Theory,
(6)
testing
standards
guidelines
for
inhibitor
selection.
expected
advance
knowledge
promote
further
research
applications.
Language: Английский
Oil Extraction From Spent Coffee Grounds As Green Corrosion Inhibitor for Copper in 3 wt% NaCl Solution
Published: June 8, 2023
This
work
aims
to
follow
the
corrosion
behavior
of
copper
in
3
wt%
NaCl
solution
presence
a
bio-oily
extract.
Spent
coffee
grounds
(SCG),
highly
recyclable
and
usable
biomass
-
often
thrown
away
becoming
serious
threat
environment
,
has
fraction
oils
(12%)
that
we
have
opted
use
as
inhibitor
for
copper.
The
extraction
was
carried
out
using
n-hexane
solvent
decoction.
oily
analyzed
by
Fourier
transform
infrared
spectroscopy
(FTIR)
thermogravimetric
analysis
(TGA).
Potentiodynamic
polarization
measurements
revealed
SCG
extract
acts
cathode-type
saline
media,
mainly
preventing
diffusion
oxygen
molecules
toward
substrate.
As
concentration
increased,
inhibition
efficiency
improved
well,
reaching
95.78
%
with
0.6
g/L
obtained
results
electrochemical
impedance
(EIS)
are
accordance
order
inhibitory
potentiodynamic
polarization.
We
found
adsorption
process
on
surface
is
spontaneous
complies
Langmuir
isotherm.
Language: Английский
Plant Wastes as Green, Renewable and Sustainable Corrosion Inhibitors
Materials horizons,
Journal Year:
2024,
Volume and Issue:
unknown, P. 183 - 213
Published: Jan. 1, 2024
Language: Английский
Spearmint Extract as a Sustainable Corrosion Inhibitor Through Advanced Spray Coating Applications
Coatings,
Journal Year:
2024,
Volume and Issue:
14(12), P. 1582 - 1582
Published: Dec. 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.
Language: Английский