With
the
escalating
environmental
impact
of
carbon
dioxide
(CO2)
emissions,
effective
CO2
capture
is
paramount
importance.
Fully
electrochemical
processes
can
play
a
key
role
in
this
endeavor.
In
particular,
bipolar
membranes
induce
necessary
∆pH
to
convert
bicarbonate
present
water
into
dissolved
CO2,
which
later
be
extracted.
The
primary
goal
study
better
understand
working
mechanisms
BPMED
pH
swing
process.
Factors
such
as
flow
rate,
voltage,
current
density,
feed
salinity
and
alternative
electrolytes
are
investigated
optimize
from
water.
Here,
pilot
scale
membrane
stack
contactor
were
used
with
model
similar
seawater.
extent
removal,
mass
gas
energy
intensity
measured.
By
using
new
electrolyte
solution
(0.1
M
K3/K4[Fe(CN)6]),
20%
reduction
consumption
was
observed
(by
avoiding
dissociation
reaction
cathode
anode).
While
at
low
salinities
(about
2
mS/cm)
production
limited
resulted
high
consumption,
>9
mS/cm
an
increasing
demand
due
increased
ohmic
losses
concentration.
Increasing
rate
allowed
more
consequently
Changing
velocity
1
3
cm/s
3.7
2.5
kWh/kgCO2.
concludes
that
further
research
needed
increase
efficiency
process,
particularly
long-term
operation
mitigate
scaling/fouling
effects
on
membrane.
Despite
its
limitations,
provides
fully
electrified
for
Cell Reports Physical Science,
Journal Year:
2024,
Volume and Issue:
5(2), P. 101791 - 101791
Published: Jan. 31, 2024
Direct
air
capture
(DAC)
is
receiving
momentous
attention
from
academia
and
industry
as
a
promising
technology
to
mitigate
climate
change.
To
facilitate
market-based
DAC
research,
this
review
compiles
information
on
over
50
startups
their
potential
partners,
revealing
diverse
prospective
market.
The
discussions
focus
the
technologies
embraced
by
startups,
including
solid
alkali
carbonates,
amine-functionalized
sorbents,
physisorbents,
ion-exchange
resins
(IERs),
electrochemical
approaches.
Additionally,
artificial
intelligence
(AI)
introduced
strategy
accelerate
commercialization
of
DAC.
This
further
explores
CO2
utilization
storage
companies,
which
are
customers
startups.
By
synthesizing
existing
studies
identifying
opportunities
challenges
faced
different
research
identified
enrich
business
ecosystem.
aims
collaborations
among
science,
engineering,
innovation
management
for
worldwide
deployments
Chemical Engineering Journal,
Journal Year:
2024,
Volume and Issue:
497, P. 154421 - 154421
Published: July 31, 2024
As
the
atmospheric
concentration
of
CO2
steadily
increases
and
world
grapples
with
pressing
challenges
global
warming,
international
research
communities
are
actively
exploring
inventive
technologies
to
combat
adverse
effects
elevated
levels.
An
important
challenge
in
this
context
is
extract
directly
from
atmosphere.
Consequently,
capturing
last
seawater
crucial
due
its
impact
on
delicate
balance
marine
ecosystems
potential
consequences
for
climate
regulation.
While
DAC
DOC
show
towards
combating
change,
including
high
operational
costs
need
further
technological
advancements
persist.
This
paper
critically
discusses
status,
challenges,
scalability
at
pilot
or
industrial
scale.
Key
include
capital
costs,
energy
demands,
integrating
green
sources
reduce
environmental
impact.
The
review
emphasizes
techno-economical
benchmarking
analyses
evaluate
feasibility
large-scale
deployment
their
effectiveness
mitigating
emissions
acting
as
tools
delocalized
production.
Frontiers in Climate,
Journal Year:
2024,
Volume and Issue:
6
Published: April 12, 2024
Research
over
the
past
decade
has
resulted
in
various
methods
for
removing
CO
2
from
atmosphere
using
seawater
and
electrochemically
generated
acids
bases.
This
Perspective
aims
to
present
a
unified
framework
comparing
these
approaches.
Specifically,
can
all
be
seen
as
falling
into
one
of
two
categories:
those
that
result
net
increase
ocean
alkalinity
use
“ocean
sponge”
atmospheric
(ocean
enhancement,
or
OAE)
cycle
pump”
cycling,
OAC).
In
this
Perspective,
approaches
marine
carbon
dioxide
removal
(mCDR)
electrochemistry
are
compared
framework,
similarities
differences
categories
explored.
Advanced Energy and Sustainability Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 26, 2025
Mineral
carbonation
is
promising
for
CO
2
utilization
and
sequestration
via
capturing
into
stable
solid
carbonates.
However,
the
effectiveness
price
of
solvents,
as
well
energy
consumption
purification
pressurization
industrial
flue
gas,
are
hindering
development
this
technology.
Therefore,
study
integrates
two
important
concepts
seawater
direct
use
gas
without
pressurization,
investigating
mineral
using
an
alternative
solvent
with
low
input.
Carbonation
magnesium‐
calcium‐based
systems
investigated,
behaviors
mechanisms
distilled
water
compared.
The
kinetics,
conversion
progress
compounds,
behavior
determined.
uptake
capacities
higher
in
Mg‐based
system
(1.16
g‐CO
/g‐MgO)
than
Ca‐based
(0.68
/g‐CaO);
however,
most
captured
solution
phase.
Insights
reaction
optimization
provided.
potential
assessment
This
aims
to
facilitate
provide
opportunities
seawater,
through
applying
various
alkaline
wastes
containing
Ca
Mg
from
diverse
industries.
ACS ES&T Engineering,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 29, 2025
Climate
change
mitigation
by
decreasing
worldwide
CO2
emissions
is
an
urgent
and
demanding
challenge
that
requires
innovative
technical
solutions.
This
work,
inspired
vanadium
redox
flow
batteries
(VRFB),
introduces
integrated
electrochemical
process
for
carbon
capture
energy
storage.
It
utilizes
established
ferricyanide
couples
pH
modulation
desorption
absorbent
regeneration.
The
developed
consumes
electricity
during
the
daytime─when
renewable
available─to
desorb
charge
cell,
it
can
regenerate
further
absorption
while
releasing
to
grid
nighttime
when
solar
power
unavailable.
research
explores
fundamentals
scalability
potential,
through
extensive
study
of
system's
thermodynamics,
transport
phenomena,
kinetics,
bench-scale
operations.
Cyclic
voltammetry
(CV)
was
utilized
thermodynamics
process,
mapping
profiles
identify
ideal
potential
windows
operation.
CV
results
indicated
overpotential
approximately
0.3
V
required
driving
reactions.
Additionally,
polarization
studies
were
conducted
select
practical
operating
identifying
0.5
as
optimal
cycle
provide
sufficient
polarity
overcome
activation
barriers
in
addition
Nernstian
potential.
Mass
transfer
analysis
balanced
conductivity
efficiency,
with
a
1:1
ratio
identified
redox-active
species
background
electrolyte
concentration.
To
enhance
kinetics
reactions,
plasma
treatment
electrode
surfaces
implemented,
resulting
43%
decrease
resistance,
measured
impedance
spectroscopy
(EIS)
analysis.
Finally,
operation
system
demonstrated
consumption
54
kJ/mol
CO2,
which
competitive
other
technologies.
Besides
its
competitiveness,
offers
multiple
additional
advantages,
including
elimination
precious
metal
electrodes,
oxygen
insensitivity
flue
gas,
VRFB
technology,
unique
ability
function
battery
regeneration
enabling
efficient
day-night
