Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(49)
Published: Aug. 13, 2024
Abstract
Electroreduction
of
CO
2
into
multi‐carbon
(C2+)
products
(e.g.
C2+
alcohols)
offers
a
promising
way
for
utilization.
Use
strong
alkaline
electrolytes
is
favorable
to
producing
products.
However,
can
react
with
hydroxide
form
carbonate/bicarbonate,
which
results
in
low
carbon
utilization
efficiency
and
poor
stability.
Using
acidic
electrolyte
an
efficient
solve
the
problems,
but
it
challenge
achieve
high
selectivity
Here
we
report
that
amine
modified
copper
nanoparticles
exhibit
at
condition.
The
Faradaic
(FE)
reach
up
81.8
%
media
(pH=2)
total
current
density
410
mA
cm
−2
over
n‐butylamine
Cu.
Especially
FE
alcohols
52.6
%,
higher
than
those
reported
electroreduction
In
addition,
single‐pass
towards
production
60
%.
Detailed
studies
demonstrate
molecule
on
surface
Cu
cannot
only
enhance
formation,
adsorption
coverage
*CO,
also
provide
hydrophobic
environment,
result
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 25, 2025
Coordinatively
unsaturated
copper
(Cu)
has
been
demonstrated
to
be
effective
for
electrifying
CO2
reduction
into
C3
products
by
adjusting
the
coupling
of
C1-C2
intermediates.
Nevertheless,
intuitive
impacts
ultralow
coordination
Cu
sites
on
are
scarcely
elucidated
due
lack
synthetic
recipes
with
low
numbers
and
its
vulnerability
aggregation
under
reductive
potentials.
Herein,
computational
predictions
revealed
that
higher
levels
coordinative
unsaturation
favored
adsorption
C1
C2
Building
upon
correlations,
we
constructed
an
catalyst
from
in
situ
oxide
nanoparticles
(CuO
NPs)
compartmentalized
within
ordered
porous
matrix,
achieving
a
remarkable
Faradaic
efficiency
(FE)
n-propanol
(n-PrOH)
electroreduction,
reaching
up
27.4%
H-cell
at
-0.8
VRHE
11.8%
300
mA
cm-2
flow
cell.
The
presence
maintenance
during
rigorous
electrolysis
process
contributed
outstanding
performances,
as
verified
combination
spectroscopy
techniques,
disclosing
formed
featured
strong
*C1
*C2
intermediates
lead
n-PrOH.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(49)
Published: Aug. 13, 2024
Abstract
Electroreduction
of
CO
2
into
multi‐carbon
(C2+)
products
(e.g.
C2+
alcohols)
offers
a
promising
way
for
utilization.
Use
strong
alkaline
electrolytes
is
favorable
to
producing
products.
However,
can
react
with
hydroxide
form
carbonate/bicarbonate,
which
results
in
low
carbon
utilization
efficiency
and
poor
stability.
Using
acidic
electrolyte
an
efficient
solve
the
problems,
but
it
challenge
achieve
high
selectivity
Here
we
report
that
amine
modified
copper
nanoparticles
exhibit
at
condition.
The
Faradaic
(FE)
reach
up
81.8
%
media
(pH=2)
total
current
density
410
mA
cm
−2
over
n‐butylamine
Cu.
Especially
FE
alcohols
52.6
%,
higher
than
those
reported
electroreduction
In
addition,
single‐pass
towards
production
60
%.
Detailed
studies
demonstrate
molecule
on
surface
Cu
cannot
only
enhance
formation,
adsorption
coverage
*CO,
also
provide
hydrophobic
environment,
result
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(51)
Published: Aug. 29, 2024
Abstract
As
an
effective
approach
to
converting
carbon
oxide
(CO
2
)
into
value‐added
carbonaceous
products,
the
electrochemical
CO
reduction
reaction
(ECO
RR)
has
shown
considerable
potential
for
neutrality,
addressing
global
pollution
and
climate
issues.
Copper
(Cu)‐based
electrocatalysts
(CuECs)
are
acknowledged
as
important
candidates
ECO
RR
of
multi‐carbon
products.
Nevertheless,
complicated
electron
transfer
multiple
competitive
pathways
in
production
process
raise
challenges
product
selectivity.
While
achieving
high
current
density
structural
stability,
improving
selectivity
CuECs
become
crucial
their
practical
applications.
Herein,
overview
fundamental
thermodynamic
kinetic
principles
presented.
Then,
typical
strategies
summarized
increasing
CuEC
formation
products
from
,
including
morphological
control,
component
design,
defect
interface
design.
The
catalyst
catalytic
performance,
mechanisms
involved
these
reviewed.
Finally,
major
future
prospects
high‐performance
discussed.
Chemical Communications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Incorporating
crown
ether
into
Cu-based
MOFs
tailors
the
microenvironment
at
electrolyte–catalyst
interface,
enhancing
Faradaic
efficiency
of
electrochemical
CO
2
reduction
reaction
to
ethylene
(C
H
4
).
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 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.
Small Methods,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 4, 2025
Stabilizing
oxidation
state
of
Cu
(Cuδ+,
δ
>
0)
sites
is
the
key-enabling
issue
for
electrocatalytic
carbon
dioxide
(CO2)
reduction
reaction
(eCO2RR)
to
multicarbon
(C2+)
products.
The
present
study
addresses
this
challenge
by
introducing
cerium
(Ce)
doping
into
La2CuO4.
Ce
facilitates
f-d
orbital
coupling
between
4f
and
3d
orbitals,
suppressing
electron
enrichment
around
atoms
transferring
electrons
from
orbitals
via
a
Cu-O-Ce
chain.
These
changes
modulate
electronic
structure
Cu,
reduce
distance
neighboring
atoms,
optimize
binding
energy
surface-adsorbed
CO
(*CO),
lower
barrier
*CO
dimerization.
As
result,
La1.95Ce0.05CuO4
catalyst
achieves
Faradaic
efficiency
up
81%
C2+
products
maintains
high
stability
over
50
h
operation.
This
work
highlights
unique
role
in
stabilizing
Cuδ+
hence
enhancing
C-C
coupling,
providing
pathway
designing
efficient
catalysts
eCO2RR.
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 13, 2025
Electrochemical
carbon
dioxide
reduction
reaction
(CO2RR)
to
yield
multicarbon
(C2+)
products
still
suffers
from
a
great
hardship,
which
requires
high
current
density
and
Faradaic
efficiency
(FE)
accompanied
by
favorable
stability
for
the
purpose
of
industrial
applications.
Herein,
we
display
5.6
atom
%
Ag/Cu2O–Cu
catalyst
with
abundant
steady
Ag/Cu+/Cu0
interfaces
efficient
conversion
CO2-to-C2+
at
ampere
level
density.
attains
desirable
FE
76.5
±
1.2%
toward
C2+
1.0
A/cm2
in
1
M
KOH
electrolyte
remains
stable
CO2
electrolysis
0.50
20
h
using
flow
cell
apparatus.
In
situ
Raman
spectrometry
functional
theory
calculations
indicate
that
interface
can
promote
through
adjusting
energy
barrier
formation
dimerization
*CO
intermediates.
The
synergistically
heterogeneous
activity,
selectivity,
electroreduction
via
tandem
route
*COOH,
*CO,
*OCCO
intermediates
over
cooperative
sites.