Angewandte Chemie,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 22, 2024
Abstract
Exploring
an
appropriate
support
material
for
Cu‐based
electrocatalyst
is
conducive
stably
producing
multi‐carbon
chemicals
from
electroreduction
of
carbon
monoxide.
However,
the
insufficient
metal‐support
adaptability
and
low
conductivity
would
hinder
C−C
coupling
capacity
energy
efficiency.
Herein,
non‐stoichiometric
Ti
4
O
7
was
incorporated
into
Cu
electrocatalysts
(Cu−Ti
),
served
as
a
highly
conductive
stable
energy‐efficient
electrochemical
conversion
CO.
The
abundant
oxygen
vacancies
originated
ordered
lattice
defects
in
facilitate
water
dissociation
CO
adsorption
to
accelerate
hydrogenation
*COH.
adaptable
interface
Cu−Ti
enables
direct
asymmetrical
between
*CO
on
*COH
,
which
significantly
lowers
reaction
barrier
C
2+
products
formation.
Additionally,
excellent
electroconductivity
benefits
charge
transfer
through
robust
Cu/Ti
minimizing
loss.
Thus,
optimized
20Cu−Ti
catalyst
exhibits
impressive
selectivity
96.4
%
ultrahigh
efficiency
45.1
products,
along
with
remarkable
partial
current
density
432.6
mA
cm
−2
.
Our
study
underscores
novel
strategy
material,
advancing
development
Cu‐supported
catalysts
efficient
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 28, 2025
Abstract
Electrode‐electrolyte
interfacial
modification
by
hydrophobic
molecules
represents
a
promising
strategy
for
suppressing
competing
proton
reduction
in
acidic
electrocatalytic
carbon
dioxide
reactions
(CO
2
RR),
meanwhile
sacrificing
extra
overpotential
due
to
increased
ohmic
resistance.
Herein,
multifunctional
conductive
polymer,
polyaniline
modified
p‐aminobenzenesulfonic
acid
(ABSA‐polyaniline),
is
constructed
between
Cu
catalyst
layer
and
electrolyte
simultaneously
create
an
ideal
microenvironment
CO
RR
enhance
the
charge
transfer
ion
transport
processes
at
electrochemical
reaction
interface.
This
polymer
balances
local
hydrophobicity,
promotes
adsorption
activation,
regulates
mass
of
K
+
,
H
OH
−
ions,
thus
significantly
enhancing
kinetics
medium,
yielding
high
Faraday
efficiency
(FE
=
81%)
multicarbon
products
600
mA
cm
−2
.
More
importantly,
compared
with
commonly
used
molecules,
nature
ABSA‐PANI
helps
reduce
resistance
electrode,
leading
notably
lowered
cathode
industrial‐grade
current
density
improve
energy
over
wide
potential
window.
work
sheds
light
on
development
highly
efficient
systems,
especially
those
low
alkali
cation
concentrations
concentrations.
Chemical Society Reviews,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Metastable
materials
are
considered
promising
electrocatalysts
for
clean
energy
conversions
by
virtue
of
their
structural
flexibility
and
tunable
electronic
properties.
However,
the
exploration
synthesis
metastable
via
traditional
equilibrium
methods
face
challenges
because
requirements
high
precise
control.
In
this
regard,
rapid
method
(RSM),
with
efficiency
ultra-fast
heating/cooling
rates,
enables
production
under
non-equilibrium
conditions.
relationship
between
RSM
properties
remains
largely
unexplored.
review,
we
systematically
examine
unique
benefits
various
techniques
mechanisms
governing
formation
materials.
Based
on
these
insights,
establish
a
framework,
linking
electrocatalytic
performance
Finally,
outline
future
directions
emerging
field
highlight
importance
high-throughput
approaches
autonomous
screening
optimal
electrocatalysts.
This
review
aims
to
provide
an
in-depth
understanding
electrocatalysts,
opening
up
new
avenues
both
fundamental
research
practical
applications
in
electrocatalysis.
Abstract
Benefiting
from
the
optimal
interaction
strength
between
Cu
and
reactants,
Cu‐based
catalysts
exhibit
a
unique
capability
of
facilitating
formation
various
multi‐carbon
products
in
electricity‐driven
CO
2
reduction
reactions
(CO
ERR).
Nonetheless,
ERR
process
on
these
is
characterized
by
intricate
polyproton‐electron
transfer
mechanisms
that
are
frequently
hindered
high
energy
barriers,
sluggish
reaction
kinetics,
low
C─C
coupling
efficiency.
This
review
employs
advanced
characterization
techniques,
such
as
sum
frequency
generation
technology,
to
provide
comprehensive
analysis
mechanism
surface,
examining
it
both
spatial
temporal
dimensions
proposing
spatial‐temporal
mechanism.
To
improve
efficiency,
series
regulatory
strategies
focused
surface
microenvironment,
catalyst
structure,
internal
electronic
thereby
offering
novel
insights
for
upcoming
design
enhancement
electrocatalysts.
Chemistry - Methods,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 2, 2025
The
electrocatalytic
CO
2
reduction
reaction
(eCO
RR)
offers
a
promising
pathway
for
converting
greenhouse
gases
into
valuable
fuels
and
chemicals
using
renewable
energy.
Beyond
advancements
in
catalyst
electrolyzer
design,
significant
opportunities
lie
the
strategic
modulation
of
gas–liquid–solid
three‐phase
interface
(TPI)
on
surface.
After
revisiting
evolution
from
traditional
liquid–solid
double‐phase
interfaces
to
advanced
TPIs,
this
concept
outlines
major
challenges
constructing
stable
TPIs
eCO
RR
gas
diffusion
electrodes
reviews
recent
progress
TPI
through
hydrophobicity
enhancement.
Further,
achieving
delicate
balance
between
hydrophilicity—optimal
wettability—is
crucial
optimizing
construction,
enhancing
overall
performance
is
emphasized.
This
work
provides
insights
designing
efficient
other
gas‐involved
electrochemical
processes,
contributing
sustainable
energy
technologies.
Chemical Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Electrocatalytic
CO2
reduction
(eCO2R)
driven
by
renewable
electricity
holds
great
promise
to
mitigate
anthropogenic
emissions.
In
this
study,
we
engineer
cobalt
phthalocyanine
(CoPc)
supported
on
graphene-skinned
Al2O3
nanosheets
(CoPc/Al2O3@C)
enhance
CO2-to-CO
conversion.
The
strong
π-π
stacking
between
the
CoPc
macrocycle
and
interlayer
graphene,
coupled
with
electronic
repulsion
Co2+
center
Al2O3,
induces
a
structural
distortion
in
CoPc,
raising
energy
level
of
d
z2
orbital.
This
perturbation
facilitates
activation,
shifts
rate-determining
step,
thereby
substantially
accelerates
overall
eCO2R
kinetics.
optimal
catalyst
demonstrates
near-unity
CO
faradaic
efficiency
(FECO)
across
wide
current
range,
achieving
high
partial
density
388
mA
cm-2
an
exceptional
turnover
frequency
(TOF)
43
s-1,
addition
prolonged
operational
stability
membrane
electrode
assembly
(MEA).
work,
leveraging
vectorial
interactions
molecular
moieties
substrate
reshape
macrocyclic
structure
realign
orbital
energies
offers
new
insights
into
design
efficient
electrocatalysts
for
eCO2R.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(31), С. 20115 - 20120
Опубликована: Янв. 1, 2024
We
engineered
Cu/CeO
x
and
Cu/CuCeO
solid
solutions,
enhancing
*H
*CO
binding
in
CO
2
RR.
boosts
coverage
via
faster
water
dissociation,
while
augments
adsorption,
selectively
reducing
to
CH
4
or
C
H
.
