Catalysts,
Journal Year:
2025,
Volume and Issue:
15(3), P. 199 - 199
Published: Feb. 20, 2025
The
electroreduction
of
CO2
(CO2RR)
is
a
promising
and
environmentally
sustainable
approach
to
closing
the
carbon
cycle.
However,
achieving
high
activity
selectivity
for
multicarbon
(C2₊)
products
remains
significant
challenge
due
complexity
reaction
pathways.
In
this
study,
porous
carbon-supported
copper
catalysts
(CuHCS)
with
pore
sizes
120
nm
(CuHCS120)
500
(CuHCS500)
were
synthesized
tailor
microenvironment
at
electrode–electrolyte
interface
enhance
product
selectivity.
CuHCS120
achieved
maximum
faradaic
efficiency
(FE)
C2₊
46%,
double
that
CuHCS500
(23%).
contrast,
showed
higher
FE
CO
(36%)
compared
(14%)
same
potential.
In-depth
ex
situ
in
investigations
revealed
smaller
pores
promote
enrichment
adsorption
*CO
intermediates,
thereby
enhancing
C–C
coupling
formation
products.
These
findings
underscore
critical
role
structural
confinement
modulating
catalytic
provide
valuable
insights
rational
design
advanced
CO2RR.
Chemical Communications,
Journal Year:
2024,
Volume and Issue:
60(77), P. 10618 - 10628
Published: Jan. 1, 2024
Explores
C–C
coupling
in
CO
2
reduction,
focusing
on
atomic/electronic
structure
modulation,
electron
transfer,
adsorption,
and
carbon
chain
growth.
Optimizing
catalysts
enhances
for
multi-carbon
products.
Energy Materials,
Journal Year:
2025,
Volume and Issue:
5(5)
Published: Feb. 25, 2025
Recent
research
on
the
electrocatalytic
CO2
reduction
reaction
(eCO2RR)
has
garnered
significant
attention
given
its
capability
to
address
environmental
issues
associated
with
emissions
while
harnessing
clean
energy
produce
high-value-added
products.
Compared
C1
products,
C2+
products
provide
greater
densities
and
are
highly
sought
after
as
chemical
feedstocks.
However,
formation
of
C-C
bond
is
challenging
due
competition
H-H
C-H
bonds.
Therefore,
elevate
selectivity
yield
fuels,
it
essential
develop
more
advanced
electrocatalysts
optimize
design
electrochemical
cell
configurations.
Of
materials
investigated
for
CO2RR,
Cu-based
stand
out
their
wide
availability,
affordability,
compatibility.
Moreover,
catalysts
exhibit
promising
capabilities
in
adsorption
activation,
facilitating
compounds
via
coupling.
This
review
examines
recent
both
cells
electroreduction
compounds,
introducing
core
principles
eCO2RR
pathways
involved
generating
A
key
focus
categorization
catalyst
designs,
including
defect
engineering,
surface
modification,
nanostructure
tandem
catalysis.
By
analyzing
studies
catalysts,
we
aim
elucidate
mechanisms
behind
enhanced
compounds.
Additionally,
various
types
electrolytic
discussed.
Lastly,
prospects
limitations
utilizing
highlighted
future
research.
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 27, 2025
The
electrochemical
CO2
reduction
reaction
(CO2RR)
to
produce
multicarbon
(C2+)
hydrocarbons
or
oxygenate
compounds
is
a
promising
route
obtain
renewable
fuel
valuable
chemicals;
however,
producing
C2+
at
high
current
densities
still
challenge.
Herein,
we
design
hierarchically
structured
tandem
catalysis
electrode
for
greatly
improved
catalytic
activity
and
selectivity
products.
constructed
of
sputtered
Ag
nanoparticle
layer
on
hydrophobic
polytetrafluoroethylene
(PTFE)
membrane
nitrogen-doped
carbon
(NC)-modified
Cu
nanowire
arrays.
arrays
are
in
situ
grown
PTFE
by
oxidation
CuAl
alloy,
which
the
chemical
etching
metal
Al
induces
formation
array
structure.
Within
hierarchical
configuration,
CO
can
be
efficiently
generated
an
active
then
spillover
transfer
NC-modified
layer,
Cu/NC
interfaces
enhance
*CO
trapping
adsorption.
During
CO2RR,
optimized
achieves
superior
Faradaic
efficiencies
53.5%
87.5%
ethylene
(C2H4)
products
density
519.0
mA
cm–2,
respectively,
with
C2+/C1
ratio
10.42
long-term
stability
up
50
h.
In
Raman
attenuated
total
reflection-surface
enhanced
infrared
absorption
spectroscopy
(ATR-SEIRAS)
confirm
that
Ag–Cu–NC
system
significantly
enhances
linear
adsorption
intermediates
dissociation
H2O,
improves
C–C
coupling
capability,
stabilizes
key
intermediate
*OCCOH
