The Journal of Physical Chemistry Letters,
Год журнала:
2025,
Номер
unknown, С. 1343 - 1351
Опубликована: Янв. 29, 2025
We
investigate
a
continuous
electrochemical
pH-swing
method
to
capture
CO2
from
gas
phase.
The
cell
consists
of
single
cation-exchange
membrane
(CEM)
and
recirculation
mixture
salt
phenazine-based
redox-active
molecules.
In
the
absorption
compartment,
this
solution
is
saturated
by
mixed
phase
at
high
pH.
cell,
pH
reduced,
selectively
released
in
desorption
step.
influence
redox
molecule
concentration
on
charge
storage
capacity
solution,
as
well
impact
current
density
rate
process
performance.
A
theoretical
framework,
based
minimal
set
assumptions,
established.
This
framework
describes
data
very
accurately
can
be
used
for
system
design
optimization.
evaluate
trade-off
between
energy
consumption
compare
with
published
reports.
report
low
32
kJ/mol
39
mmol/m2/min.
Fuel,
Год журнала:
2023,
Номер
344, С. 128102 - 128102
Опубликована: Март 15, 2023
Global
warming
triggered
by
greenhouse
gas
(GHG)
emissions,
particularly
carbon
dioxide
(CO2),
significantly
influences
climate
change
and
has
become
a
common
environmental
issue
recently.
The
current
amine-based
technologies
(ABTs)
for
CO2
capture
(CAPCO2)
have
high
energy
demand,
low
absorption,
desorption
rates,
are
less
environmentally
sustainable
due
to
emissions
of
volatile
solvents.
Therefore,
the
development
friendly
CAPCO2
materials
and/or
processes
is
growing
area
research.
utilization
ionic
liquids
(ILs)
recently
attracted
attention.
unique
characteristics
ILs,
such
as
their
vapor
pressure
affinity
well
volatility
make
them
viable
substitute
existing
processes.
This
work
provides
comprehensive
overview
accomplishments
challenges
during
use
ILs
CAPCO2.
Review
also
outlines
mechanisms
with
at
molecular
level,
properties
characterization
CO2/IL
systems,
effect
operating
conditions
on
uptake
(UPCO2)
capacity
ILs.
It
emphasizes
impact
cations,
anions,
functional
groups
solubility
((SCO2))
in
biodegradability
toxicity
Additionally,
recent
advances
IL
membrane
technology
considered.
Lastly,
contribution
simulations
create
assess
was
reviewed.
Protic
aprotic
shown
outstanding
efficiency
UPCO2.
interactions
between
anionic
part
enhance
UPCO2
outperform
traditional
organic
Functionalized
(FUNILs)
tuned
groups,
supported
membranes
(SILMs)
reversible
(RILs)
improved
promising
capturing
process
from
industrial
streams
even
under
partial
pressure.
relative
importance
chemical
breakdown
constituents
(cation–anion
interfacial
structuring)
different
temperatures
unclear,
more
research
this
required
better
inform
design
new
review
proper/systematic
guideline
help
manufacturers
engineers
high-capacity
appropriate
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Фев. 8, 2024
Abstract
Efficient
CO
2
separation
technologies
are
essential
for
mitigating
climate
change.
Compared
to
traditional
thermochemical
methods,
electrochemically
mediated
carbon
capture
using
redox-tunable
sorbents
emerges
as
a
promising
alternative
due
its
versatility
and
energy
efficiency.
However,
the
undesirable
linear
free-energy
relationship
between
redox
potential
binding
affinity
in
existing
chemistry
makes
it
fundamentally
challenging
optimise
key
sorbent
properties
independently
via
chemical
modifications.
Here,
we
demonstrate
design
paradigm
sorbents,
which
breaks
scaling
by
leveraging
intramolecular
hydrogen
bonding
isoindigo
derivatives.
The
potentials
of
isoindigos
can
be
anodically
shifted
>350
mV
impart
with
high
oxygen
stability
without
compromising
binding,
culminating
system
minimised
parasitic
reactions.
With
synthetic
space
presented,
our
effort
provides
generalisable
strategy
finetune
interactions
redox-active
organic
molecules
,
addressing
longstanding
challenge
developing
effective
methods
driven
non-conventional
stimuli.
International Journal of Electrical Power & Energy Systems,
Год журнала:
2023,
Номер
155, С. 109544 - 109544
Опубликована: Окт. 6, 2023
Expansion
of
the
energy
demand
accompanies
fossils'
substitution
for
renewables,
requiring
sustainable
pathways
working
through
varying
levels
economic
wealth
and
resource
availability.
Fossil
reserves,
renewable
resources,
transition
metals,
water,
carbon
storage
sites
are
concentrated
in
a
few
countries,
some
relying
on
monetizing
these
resources
to
leverage
growth.
Accelerating
from
fossils
renders
cleaner
while
introducing
co-benefits
impacts,
price
pressure,
safety
issues.
The
affects
energy-intensive
sectors
propagating
clean
strategies
posing
issues
that
may
hinder
development
goals
(SDG).
A
broader
focus
is
needed,
with
clear
vision
many
goals.
work
targer
this
gap
targeted
critical
literature
review
identify
industries
prioritize.
Among
issues,
capture
mitigation
most
cited
aspects.
As
evidenced
by
number
citations
reviewed
works,
waves
progress
among
industries:
Oil
Gas,
Cross
Sectors
Nations
segments
show
fast
responses
occurring
Energy
industry,
Mining,
Heavy
Truck,
Aviation
delayed
decarbonization.
response
lags
attributed
uneven
complexity
achieving
decarbonization
sectors,
which
depend
capital-intensive
long-turnaround
assets
protective
measures.
Advanced Materials,
Год журнала:
2023,
Номер
35(52)
Опубликована: Авг. 20, 2023
Abstract
Electrochemical
carbon
dioxide
reduction
reaction
(CO
2
RR)
driven
by
renewable
energy
shows
great
promise
in
mitigating
and
potentially
reversing
the
devastating
effects
of
anthropogenic
climate
change
environmental
degradation.
The
simultaneous
synthesis
energy‐dense
chemicals
can
meet
global
demand
while
decoupling
emissions
from
economic
growth.
However,
development
CO
RR
technology
faces
challenges
catalyst
discovery
device
optimization
that
hinder
their
industrial
implementation.
In
this
contribution,
a
comprehensive
overview
current
state
research
is
provided,
starting
with
background
motivation
for
technology,
followed
fundamentals
evaluated
metrics.
Then
underlying
design
principles
electrocatalysts
are
discussed,
emphasizing
structure–performance
correlations
advanced
electrochemical
assembly
cells
increase
selectivity
throughput.
Finally,
review
looks
to
future
identifies
opportunities
innovation
mechanism
discovery,
material
screening
strategies,
assemblies
move
toward
carbon‐neutral
society.
Energy & Environmental Science,
Год журнала:
2023,
Номер
16(11), С. 4944 - 4967
Опубликована: Янв. 1, 2023
This
study
explores
the
emerging
development
of
electrochemical
direct
ocean
capture
(eDOC)
as
an
effective
negative
emission
technology;
focusing
on
pH
swing
mechanisms,
we
highlight
advancements
in
eDOC
and
identify
key
areas
for
future
research.
