Environmental Science & Technology Letters,
Год журнала:
2024,
Номер
11(11), С. 1161 - 1174
Опубликована: Сен. 17, 2024
Technoeconomic
analysis
(TEA)
studies
are
vital
for
formulating
guidelines
that
drive
the
commercialization
of
electrochemical
CO2
reduction
(eCO2R)
technologies.
In
this
review,
we
first
discuss
progress
in
field
eCO2R
processes
by
providing
current
state-of-the-art
metrices
(e.g.,
faradic
efficiency,
density)
based
on
recent
heterogeneous
catalysts'
discovery,
electrolytes,
electrolyzers
configuration,
and
electrolysis
process
designs.
Next,
assessed
TEA
a
wide
range
final
products,
different
modes
systems/processes,
discussed
their
relative
competitiveness
with
relevant
commercial
products.
Finally,
challenges
future
directions
essential
linking
suggestions
from
studies.
We
believe
review
will
catalyze
innovation
advanced
strategies
to
meet
benchmarks
conversion
into
valuable
chemicals
at
industrial
scale.
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
147(9), С. 7564 - 7577
Опубликована: Фев. 21, 2025
Imidazolium-based
ionic
liquids
have
led
to
enhanced
CO2
electroreduction
activity
due
cation
effects
at
the
cathode
surface,
stabilizing
reaction
intermediates
and
decreasing
activation
energy.
In
aqueous
media,
alkali
cations
are
also
known
improve
reduction
on
metals
such
as
Ag,
with
enhancement
attributed
electrical
double
layer
trending
size
of
cation.
However,
effect
a
mixed
catholyte
solution
in
presence
an
imidazolium-based
liquid
has
not
been
well-explored.
Herein,
1-ethyl-3-methylimidazolium
tetrafluoroborate,
[EMIM][BF4],
water
was
investigated
salts
unravel
interaction
for
Ag.
Although
both
[EMIM]+
individually
improved
CO
conversion
Ag
water,
electrochemical
results
showed
that
hindered
imidazolium-mediated
most
conditions.
Li+,
particular,
sharply
inhibitory
compared
other
strongly
redirected
selectivity
hydrogen
evolution.
The
nature
inhibition
spectroscopic
techniques,
including
situ
surface-enhanced
Raman
spectroscopy
(SERS)
dynamic
impedance
(DEIS).
Along
computational
insights
from
density
functional
theory
(DFT),
data
suggest
inhibit
[EMIM]-mediated
by
competing
surface
adsorption
sites,
preventing
potential-dependent
structural
reorientation
imidazolium,
promoting
evolution
bringing
solvated
surface.
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
147(9), С. 7921 - 7931
Опубликована: Фев. 24, 2025
Hydrophobic
ionic
liquid
(HIL)
engineering
on
the
catalyst
surface
represents
a
simple
yet
potent
direction
for
optimizing
CO2
electroreduction
performance.
However,
pivotal
role
of
HIL
at
an
industrial
current
density
is
still
ambiguous
due
to
limited
and
conflicting
research
findings.
Herein,
HIL-engineered
oxide-derived
Cu
porous
nanoparticles
with
electron-delocalized
groups
specific
ultramicropore
structure
are
first
constructed
facilitate
CO2-to-C2+
ampere-level
densities.
The
uniformly
decorated
innovatively
demonstrated
by
positron
annihilation
lifetime
spectroscopy,
which
offers
unparalleled
advantages
in
characterization.
Bader
charge-dependent
performance
analyses
theoretical
calculations
disclose
that
N
atoms
lower
adsorption
energy
CO
atop
site
from
-0.38
-1.42
eV
through
electron
donation,
inverts
most
stable
favors
energy-efficient
dimerization
atop-bound
CO.
Operando
Raman
spectra
situ
attenuated
total
reflection-surface
enhanced
infrared
absorption
spectroscopy
indicate
adhered
increases
*CO
coverage
alters
configuration
state
abundant
high-frequency
band.
Furthermore,
staircase
potential
electrochemical
impedance
unravels
arrangement
enlarges
charge
about
1.5
times,
thereby
accelerating
electroreduction.
As
result,
achieve
prominent
C2+
productivity
Faradaic
efficiency
85.1%
formation
rate
up
2512
μmol
h-1
cm-2,
outperforming
reported
Cu-based
electrocatalysts.
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 27, 2025
Abstract
The
electrocatalytic
conversion
of
CO
2
into
valuable
multi‐carbon
(C
2+
)
products
using
Cu‐based
catalysts
has
attracted
significant
attention.
This
review
provides
a
comprehensive
overview
recent
advances
in
catalyst
design
to
improve
C
selectivity
and
operational
stability.
It
begins
with
an
analysis
the
fundamental
reaction
pathways
for
formation,
encompassing
both
established
emerging
mechanisms,
which
offer
critical
insights
design.
In
situ
techniques,
essential
validating
these
by
real‐time
observation
intermediates
material
evolution,
are
also
introduced.
A
key
focus
this
is
placed
on
how
enhance
through
manipulation,
particularly
emphasizing
catalytic
site
construction
promote
C─C
coupling
via
increasing
*
coverage
optimizing
protonation.
Additionally,
challenge
maintaining
activity
under
conditions
discussed,
highlighting
reduction
active
charged
Cu
species
materials
reconstruction
as
major
obstacles.
To
address
these,
describes
strategies
preserve
sites
control
including
novel
utilization
mitigation
reconstruction.
By
presenting
developments
challenges
ahead,
aims
guide
future
conversion.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 21, 2025
Abstract
The
massive
production
of
cost‐effective
and
highly‐efficient
electrode
materials
is
crucial
for
industrial
CO
2
electroconversion.
Herein,
this
work
breaks
away
from
conventional
approaches
by
directly
constructing
an
integrated
single‐molecule
catalytic
(7F‐CoPc@GF)
at
the
meter
scale,
through
integration
π‐extended
macrocyclic
structures
into
commercial
carbon‐based
collectors
with
strong
interfacial
interactions.
This
innovative
method
reshapes
traditional
design
using
a
liquid‐phase
self‐adaptive
anchoring
strategy,
eliminating
need
conductive
adducts
binders.
In
addition,
introducing
perfluoroalkyl
chain,
built‐in
hydrophobic
microenvironment
in
heterogenized
macrocycles
optimizes
electron
migration
water
interaction
around
active
sites,
suppressing
hydrogen
evolution
reaction
thereby
enhancing
pH‐universal
electroreduction
across
broad
potential
range.
Significantly,
mechanistic
study
reveals
that
not
only
enhances
effective
collisions
between
sites
reactants
but
also
facilitates
immediate
removal
products
surface.
Further
development
dual
value‐added
electrolysis
systems,
incorporating
waste
gas
treatment,
highlights
versatility
extensibility
meter‐scale
material.
These
findings
offer
promising
methodology
rational
stable,
binder‐free,
large‐size
electrodes,
advancing
sustainable
scale.
