Electrochemical
CO2
reduction
(ECR)
to
high
value-added
feedstocks
is
a
sustainable
way
address
energy
and
environmental
issues.
However,
there
still
exists
bottleneck
in
comprehending
the
structure–activity
relationship
of
catalysts
for
ECR.
Herein,
we
demonstrated
that
simultaneous
tuning
surface-adsorbed
hydroxyl
group
(OHad)
coverage
oxygen
vacancy
(OV)
amount
on
In2O3
surface
was
an
effective
approach
derive
excellent
formate
Faradaic
efficiency
(FE)
above
80%
at
wide
potential
range
from
−1.0
−1.5
V
versus
reversible
hydrogen
electrode
(vs
RHE)
with
promising
durability.
experiments
theoretical
analyses
revealed
synergistic
effect
OHad
OV
could
smartly
optimize
adsorption
sites,
accelerate
electron
transfer,
stabilize
*CO2•–
*OCHO
intermediates,
thus
facilitate
ECR
activity.
This
result
will
contribute
understanding
critical
role
these
species
ECR,
which
can
offer
valuable
insights
into
rational
catalyst
design
comprehensive
utilization
efficiency.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(7), P. 3844 - 3878
Published: Jan. 1, 2024
This
review
provides
a
systematic
summary
of
the
nanostructure
engineering
Ru-modified
electrocatalysts
for
electrocatalytic
water
splitting.
These
regulation
strategies,
such
as
single
atom
sites,
doping,
alloying
and
interfacial
are
summarized
in
detail.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 21, 2025
Abstract
The
unavoidable
self‐reduction
of
Bismuth
(Bi)‐based
catalysts
to
zero‐valence
Bi
often
results
in
detrimental
adsorption
OCHO
*
,
leading
unsatisfactory
selectivity
HCOOH
the
electroreduction
carbon
dioxide
(CO
2
).
A
novel
Bi‐tannin
(Bi‐TA)
complex
is
developed,
which
undergoes
situ
reconstruction
into
a
Bi/Bi₂O₂CO₃
phase
during
CO
reduction.
This
reconstructed
catalyst
exhibits
high
activity
and
selectivity,
achieving
Faradaic
Efficiency
(FE)
for
formate
production
exceeding
90%,
peaking
at
96%.
Operando
spectroscopic
theoretical
analyses
reveal
that
δ+
active
site
significantly
enhances
formation
intermediate,
crucial
production.
study
offers
promising
approach
overcoming
limitations
Bi‐based
reduction
formate.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 2, 2025
Abstract
With
the
increasing
consumption
of
fossil
fuels
emitting
a
large
amount
CO
2
,
electrocatalytic
reduction
(CO
RR)
has
become
promising
way
to
reduce
carbon
emissions.
Dual‐site
catalysts
have
been
identified
as
attractive
materials
for
RR,
however,
suffering
from
low
selectivity
and
activity.
Herein,
Cu‐In‐S
quantum
dots
undergone
in
situ
dynamic
restructuring
construct
Cu‐In
dual‐site
(Cu
0.15
In
0.85
NPs)
with
highly
catalytic
activity
toward
electrochemical
conversion.
Cu
NPs
achieved
high
Faraday
efficiency
92.3%
formate
production
at
−1.45
V
versus
RHE,
partial
current
density
245.4
mA
cm
−2
−1.82
RHE
flow
cell.
ATR‐SEIRAS
spectroscopy
theoretical
calculations
indicated
dopants
induced
charge
transfer
atoms
form
synergistic
active
sites,
thus
decreasing
formation
energy
OCHO
*
HCOOH
intermediates,
well
inhibiting
dissociation
water
molecules.
This
work
elucidates
optimization
mechanism
electronic
structure
guides
fabrication
efficient
electrocatalysts
production.
Advanced Sustainable Systems,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 5, 2025
Abstract
The
electrochemical
reduction
of
carbon
dioxide
(ERC)
from
flue
gas
is
a
promising
solution
to
mitigate
CO
2
emissions
and
importantly
has
the
ability
for
direct
industrial
application.
However,
components
such
as
N
,
O
SO
x
NO
H
in
can
hinder
ERC
efficiency,
affecting
catalyst
stability
selectivity.
This
study
systematically
investigates
effect
these
on
metallic
Bi
dendrite
catalyst.
shows
remarkable
(over
6
days
are
observed
with
constant
current
generation)
surpassing
other
monometallic
catalysts.
active
state
been
demonstrated
o
perando
XANES
(X‐ray
Absorption
Near
Edge
Structure)
analysis
which
confirmed
bismuth
notably,
performance
remains
unaffected
despite
presence
.
research
aims
fill
critical
gap,
demonstrating
how
influence
activity
pave
way
future
advancements
optimization.
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 Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(24), P. 9231 - 9238
Published: June 5, 2024
We
report
In2O3
tandem
Ag-based
catalysts
for
an
electrochemical
CO2
reduction
reaction
(eCO2RR),
which
achieve
remarkable
selectivity
toward
CO
and
desirable
Faradaic
efficiencies
(FEs)
exceeding
90%,
with
a
maximum
value
of
97.8%,
achieved
over
12.25%In2O3–Ag
using
the
H-type
cell
within
wide
potential
window
ranging
from
−0.48
to
−0.88
V
vs
RHE.
Moreover,
high
current
density
−102.6
mA
cm–2
can
be
attained
in
flow
while
maintaining
FE
above
90%.
The
theoretical
calculations
show
more
negative
Gibbs
free
energy
formation
key
intermediate
*CO2–
on
In
site,
demonstrates
that
catalyst
exhibits
stronger
adsorption
activation
capacity
CO2.
Additionally,
DFT
simulation
reveals
thermodynamic
feasibility
surface
transport
*CO2–,
wherein
migrates
site
Ag
site.
rapid
electron
transfer
at
In2O3–Ag
heterointerface
influences
electronic
environment
accelerating
migration
reducing
barrier
conversion
*COOH,
ultimately
facilitating
generation
CO.
