Macromolecular Symposia,
Год журнала:
2025,
Номер
414(1)
Опубликована: Фев. 1, 2025
Abstract
The
study
includes
preparations
of
compound
N1
(hydrazinecarbothiohydrazide)
that
is
yielded
from
reacting
carbon
disulfide
with
80%
aqueous
hydrazine.
resulting
used
to
prepare
N2
(MBHCH)
by
the
treatment
4‐(methylthio)benzaldehyde.
newly
prepared
Schiff
base
(N2).
Furthermore,
silver
nanoparticles
(N3)
are
reaction
nitrate
extract
Stachys
arabica
leaves
(reducing
agent).
Reacting
gave
N4.
compounds
characterized
using
various
techniques
FT‐IR,
1
H‐NMR,
XRD
and
TEM.
Moreover,
DFT,
ADMET,
molecular
docking
examined
for
organic
molecules.
results
prove
scores
−7.40,
−5.83,
−5.98
against
tyrosyl‐tRNA
synthetase
(
S.
aureus
),
peptidoglycan
glycosyltransferase
E.
coli
AcrAB‐TolC
efflux
pump
).
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Янв. 22, 2024
Abstract
The
features
of
this
work
on
corrosion
inhibition
have
been
investigated
based
the
ecological
awareness
and
according
to
strict
environmental
legislations.
This
was
done
by
studying
how
different
imidazolium
derivatives
ionic
liquids
containing
alkyl
chains
R
8
,
10
12
affected
reaction
carbon
steel
specimen
immersed
in
1
M
hydrochloric
acid
at
various
temperatures.
Weight
loss,
potentiodynamic
polarization
electrochemical
impedance
spectroscopy
were
utilized
examine
behavior
steel.
In
addition,
FT-IR
used
analyze
coated
film
that
has
formed
metal
surface.
prepared
showed
effective
efficiency,
where
rate
after
using
100
ppm
-IL,
-IL
decreased
from
5.95
(µg
cm
−2
min
−1
)
0.66,
0.56,
0.44
),
respectively
20
°C.
curves,
current,
I
corr
decreases
ILs
addition
suggest
act
as
mixed
type
inhibitors.
From
EIS
findings,
increase
ct
decrease
C
dl
values
proves
adherence
inhibitor
molecules
temperature
effect
also
studied
formed,
increasing
50
°C,
increased
inhibitors
efficacy
decreased.
length
attached
chain,
efficacies
increases.
Various
thermodynamic
parameters
such
activation
free
energy
(ΔG
*
entropy
(ΔS
enthalpy
(ΔH
well
adsorption
isotherm
order
interpret
mechanism
obtain
most
accurate
perception.
Electrochemistry Communications,
Год журнала:
2023,
Номер
159, С. 107653 - 107653
Опубликована: Дек. 18, 2023
In
this
work,
we
have
synthesized
two
new
Schiff-bases
from
2,2-dimethylpropane-1,3-diamine
and
n-hydroxy-n-methoxybenzaldehyde.
The
were
characterized
by
1H
NMR,
13C
NMR.
anti-corrosive
property
of
the
compounds
investigated
using
weight
loss,
polarization
EIS
techniques
against
1M
HCl
solution.
For
additional
support
for
DFT
studies
also
carried
out
Schiff-bases.
surface
morphology
was
examined
AFM
SEM
to
determine
inhibition
mechanism.
Schiff-base
derivatives
found
successfully
suppress
steel
corrosion.
showed
that
charge
transfer
resistance
occurs
because
presence
an
inhibitor.
Moreover,
increasing
concentration
decreased
double-layer
capacitance
(Cdl)
value
less
charged
species
attracted
metal
surface.
Polarization
measurements
clearly
inhibitors
suppressed
both
anodic
cathodic
reactions.
conclusion,
study
demonstrates
these
inhibit
corrosion
via
chemisorption
organic
compounds.
By
studying
effects
hydroxyl
groups
in
ortho-,
para-
positions,
best
one
as
inhibitor
be
ortho
position
OH
Schiff
base
(i.e.,
6-SH).
Anti-Corrosion Methods and Materials,
Год журнала:
2024,
Номер
71(6), С. 632 - 639
Опубликована: Июль 3, 2024
Purpose
The
main
purpose
of
the
present
study
is
to
introduce
new
Schiff
bases
as
corrosion
inhibitor
for
carbon
steel
in
1
M
HCl.
inhibitory
activity
base
was
also
assessed.
Design/methodology/approach
2,2′-((1Z,1′Z)-((2,2-dimethylpropane-1,3-diyl)bis(azanylylidene))bis(methanylylidene))diphenol
synthesized
and
it’s
performance
an
then
investigated
inhibition
this
compound
studied
evaluated
by
chemical
methods
electrochemical
impedance
spectroscopy,
potential
dynamic
polarization
Atomic
Force
microscopy
(AFM)
method.
thermodynamics
parameters
were
both
absence
presence
base.
Findings
results
tests
showed
that
has
a
good
percentage
on
will
increase
with
increasing
concentration
it
reach
70%
2
×
10
−3
inhibitor.
Polarization
indicated
act
mixed
Nyquist
curves
addition
substance
solution
increased
charge
transfer
resistance
decreased
capacity
double
layer.
absorption
follows
Langmuir
adsorption
isotherm,
amount
free
energy
indicates
spontaneous
Using
AFM
investigations,
confirmed.
Originality/value
Incorporation
into
HCl
promising
approach
protecting
against
corrosive
solution.
ACS Omega,
Год журнала:
2024,
Номер
9(13), С. 15015 - 15029
Опубликована: Март 19, 2024
The
effectiveness
of
a
copper(II)
complex
with
Schiff
base
derived
from
2-amino-4-phenyl-5-methylthiazole
and
salicylaldehyde
(APMS)
as
corrosion
inhibitor
for
XC18
steel
in
an
HCl
solution
was
investigated.
Experimental
findings
indicated
slight
negative
correlation
between
inhibition
efficiencies
1
M
temperature
but
positive
both
concentration
immersion
time,
respectively.
weight
loss
measurement
revealed
that
APMS
achieved
maximum
rate
92.07%
at
303
K.
A
fitting
analysis
demonstrated
adheres
to
the
Langmuir
adsorption
isotherm.
electrochemical
results
enhanced
inhibitive
performance
APMS,
efficiency
increasing
concentrations
increased,
ultimately
reaching
peak
94.47%
5
×
10–3
mol
L–1.
Potentiodynamic
polarization
measurements
acted
mixed-type
without
affecting
mechanism.
Scanning
electron
microscopy
investigations
metal
surfaces
corroborated
presence
adsorbed
organic
layer.
Advanced
theoretical
calculations
utilizing
density
functional
theory
first-principles
density-functional
tight-binding
were
conducted
gain
insights
into
behavior
on
surface.
derives
its
advantages
crucial
inter-
intramolecular
interactions,
resulting
formation
resilient
layer,
line
experimental
findings.
It
is
found
APMS-based
exhibits
significant
synergistic
effect.
current
study
offers
design
direction
enhancing
structural
characteristics
complexes,
laying
groundwork
multifunctional
frameworks
minimize
rates
considerations
real-world
use
cost-efficiency.
ability
replace
harmful,
expensive
constituents
sustainable,
cost-effective
alternatives
represents
outcome
this
study.
