ACS Omega,
Год журнала:
2024,
Номер
9(17), С. 18932 - 18945
Опубликована: Апрель 19, 2024
The
deterioration
of
carbon
steel
in
saline
solutions
enriched
with
dioxide
represents
a
significant
challenge
within
the
oil
and
gas
industry.
So,
this
study
focuses
on
design
structural
analysis
four
azo
derivatives:
4-(2-quinolinylazo)-catechol
(AZN-1),
4-(4-phenoxyphenylazo)-1-naphthol
(AZN-2),
4-(4-pyridylazo)-1-naphthol
(AZN-3),
4-(2-pyridylazo)-1-naphthol
(AZN-4),
their
first
application
as
effective
corrosion
inhibitors
for
saturated
3.5%
sodium
chloride
solution.
Spectroscopic
methods
were
used
to
characterize
configurations
these
compounds.
protection
properties
compounds
solution
(under
sweet
conditions)
investigated
using
Tafel
polarization
(PDP),
electrochemical
impedance
spectroscopy
(EIS),
field
emission-scanning
electron
microscopy
(FE-SEM)
studies.
results
indicate
that
inhibition
efficiency
increases
concentration
increases.
There
is
notable
agreement
between
obtained
from
PDP
EIS
measurements,
supporting
findings.
Moreover,
displayed
had
capabilities
at
low
concentrations,
ranging
91.0
98.3%
an
additive
5
×
10–4
M.
profiles
showed
acted
mixed
inhibitors,
adsorption
behavior
followed
Langmuir
isotherm
model.
Besides,
corroborate
AZN
through
reduction
double-layer
capacitance
(Cdl)
alongside
augmentation
resistance
(Rp)
after
addition
into
corrosive
Field
emission
scanning
Fourier-transform
infrared
(FTIR)
confirmed
formation
protective
layer
surface
when
applied.
In
addition,
computational
calculations
Monte
Carlo
simulations
performed
support
experimental
observations,
gain
insights
properties,
elucidate
mechanisms