Anticorrosion properties of ionic liquid functionalized graphene oxide epoxy composite coating on the carbon steel for CCUS environment
Abstract
The
adoption
of
CO2
capture,
utilization,
and
storage
(CCUS)
technology
is
increasingly
prevalent,
driven
by
the
global
initiative
to
conserve
energy
reduce
emissions.
Nevertheless,
CCUS
has
potential
induce
corrosion
in
equipment,
particularly
high-pressure
environments
containing
CO2.
Therefore,
anti-corrosion
protection
necessary
for
metal
utilized
production
equipment.
Herein,
an
ionic
liquid
(Triethylsulfonium
bis-trifluoromethylsulfonyl-imide)
was
used
functionalize
graphene
oxide
(prepared
via
improved
Hummers
method).
FESEM,
TEM,
XPS
confirmed
liquids
(IL)
were
successfully
attached
GO
lattice.
Afterwards,
0.5
wt%
1
IL-GO
composites
separately
incorporated
into
epoxy
coated
on
carbon
steel
substrate
with
a
thickness
50
±
2
µm.
surface
examinations
demonstrated
consistent
distribution
ILGO
composite
matrix
achieved
uniform
surface.
Anti-corrosive
property
IL-GO/epoxy
coatings
evaluated
using
electrochemical
tests
such
as
potentiodynamic
polarisation,
impedance
spectroscopy
(EIS)
after
immersion
(1.5
MPa)
3.5
NaCl
system.
After
48
h
environment
(CO2-NaCl),
efficiency
are
86.41
0.55
92.59
0.83%,
respectively.
findings
this
study
that
reinforced
coating
exhibited
exceptional
resistance
when
exposed
Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 28, 2024
Language: Английский