International Journal of Electrochemical Science,
Journal Year:
2024,
Volume and Issue:
19(9), P. 100741 - 100741
Published: Aug. 2, 2024
The
inhibitory
efficacy
of
two
expired
antibiotic
drugs
namely,
cephalosporin
and
klavox
against
corrosion
aluminum
in
1.0
M
HCl
solution
was
investigate
utilizing
potentiodynamic
polarization
(PDP)
impedance
spectroscopy
(EIS)
weight
reduction
(WR)
methodologies.
It
discovered
that
the
act
as
excellent
inhibitors
inhibition
increases
drug
concentration
temperature
decreases.
reached
97.62
%
99.42
at
900
ppm
298
K,
respectively.
Expired
a
mixed
type
inhibitor,
controlling
primarily
anodic
cathodic
process,
evidenced
by
PDP
curves.
According
to
EIS
analysis,
charge
transfer
resistance
values
increased
with
increasing
inhibitor
concentration.
adsorption
isotherm
demonstrates
become
active
physical
on
Al
surface,
their
obeys
Langmuir
isotherm.
Through
quantum
chemistry
calculations,
relationship
between
properties
molecular
structure
studied.
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(14)
Published: April 1, 2025
Abstract
Three
2‐aminobenzothiazole
molecules,
6‐bromobenzo[d]thiazol‐2‐amine
(AMBT‐1),
2‐aminobenzo[d]thiazole‐6‐carbonitrile
(AMBT‐2),
and
6‐ethylbenzo[d]thiazol‐2‐amine
(AMBT‐3)
were
successfully
synthesized
fully
characterized.
The
compounds
investigated
as
corrosion
inhibitors
of
AA7075
aluminum
alloy
in
3%
NaCl
medium
at
room
temperature.
Different
techniques
employed
including
weight
loss
analysis,
electrochemical
techniques,
scanning
electron
microscopy
(SEM).
influence
the
concentration
was
examined
mode
adsorption
these
on
metal
surface
highlighted
by
assigning
appropriate
isotherm
determining
corresponding
thermodynamic
parameters.
Electrochemical
measurements
revealed
that
three
have
good
inhibition
efficiencies
(IE)
obtained
order
AMBT‐3
(96.80%)
>
AMBT‐2
(95.90%)
AMBT‐1
(79.24%).
SEM
analysis
an
adherent
stable
film
adsorbed
surface.
In
addition,
experimental
results
supported
DFT
molecular
dynamic
(MD)
calculations.
MD
investigations
showed
adopted
a
flat
position
thus
assuring
protection
from
aggressive
molecules.
