ChemSusChem,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 9, 2024
Abstract
Electrochemical
CO
2
reduction
to
value‐added
chemicals
by
renewable
energy
sources
is
a
promising
way
implement
the
artificial
carbon
cycle.
During
reaction,
especially
at
high
current
densities
for
practical
applications,
complex
interaction
between
key
intermediates
and
active
sites
would
affect
selectivity,
while
reconfiguration
of
electrocatalysts
could
restrict
stability.
This
paper
describes
fabrication
Ag/C
catalysts
with
well‐engineered
interfacial
structure,
in
which
Ag
nanoparticles
are
partially
encapsulated
C
supports.
The
obtained
electrocatalyst
exhibits
Faradaic
efficiencies
(FEs)
over
90
%
even
as
1.1
A/cm
.
strong
leads
highly
localized
electron
density
that
promotes
rate‐determining
transfer
step
enhancing
adsorption
stabilization
*COO
−
intermediate.
In
addition,
structure
prevents
during
reaction.
Stable
performance
600
h
500
mA/cm
achieved
FE
maintaining
95
%,
among
best
stability
such
selectivity
density.
work
provides
novel
catalyst
design
showing
potential
application
electrochemical
Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: Oct. 26, 2023
Electrochemical
reduction
of
CO2
into
high-value
hydrocarbons
and
alcohols
by
using
Cu-based
catalysts
is
a
promising
attractive
technology
for
capture
utilization,
resulting
from
their
high
catalytic
activity
selectivity.
The
mobility
accessibility
active
sites
in
significantly
hinder
the
development
efficient
electrochemical
reaction
(CO2RR).
Herein,
facile
effective
strategy
developed
to
engineer
accessible
structural
stable
Cu
incorporating
single
atomic
nitrogen
cavities
host
graphitic
carbon
nitride
(g-C3N4)
as
CO2-to-CH4
conversion
CO2RR.
By
regulating
coordination
density
g-C3N4,
an
optimal
catalyst
corresponding
one
atom
cavity
reaches
highest
CH4
Faraday
efficiency
49.04%
produces
products
with
CH4/C2H4
ratio
over
9.
This
work
provides
first
experimental
study
on
g-C3N4-supported
production
CO2RR
suggests
principle
designing
highly
selective
high-efficiency
engineering
2D
materials
porous
crystal
structures.
Small,
Journal Year:
2023,
Volume and Issue:
20(9)
Published: Oct. 16, 2023
Abstract
Electrochemical
carbon
dioxide
reduction
(CO
2
RR),
as
an
emerging
technology,
can
combine
with
sustainable
energies
to
convert
CO
into
high
value‐added
products,
providing
effective
pathway
realize
neutrality.
However,
the
activation
energy
of
,
low
mass
transfer,
and
competitive
hydrogen
evolution
reaction
(HER)
leads
unsatisfied
catalytic
activity.
Recently,
Indium
(In)‐based
materials
have
attracted
significant
attention
in
RR
a
series
regulation
strategies
nanostructured
engineering
are
exploited
rationally
design
various
advanced
In‐based
electrocatalysts,
which
forces
necessary
comprehensive
fundamental
summary,
but
there
is
still
scarcity.
Herein,
this
review
provides
systematic
discussion
nanostructure
for
efficient
electrocatalytic
conversion
fuels.
These
including
morphology,
size,
composition,
defects,
surface
modification,
interfacial
structure,
alloying,
single‐atom
summarized
exploring
internal
relationship
between
performance
physicochemical
properties
catalysts.
The
correlation
electronic
structure
adsorption
behavior
intermediates
highlighted
gain
in‐depth
understanding
kinetics
RR.
Moreover,
challenges
opportunities
proposed,
expected
inspire
development
other
catalysts
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.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 8, 2024
Abstract
The
limited
adsorption
and
activation
of
CO
2
on
catalyst
the
high
energy
barrier
for
intermediate
formation
hinder
development
electrochemical
reduction
reactions
(CO
RR).
Herein,
this
work
reports
a
boron
(B)
doping
engineering
in
AgCd
bimetals
to
alleviate
above
limitations
efficient
electroreduction
aqueous
Zn‐CO
batteries.
Specifically,
B‐doped
bimetallic
(AgCd‐B)
is
prepared
via
simple
reaction
at
room
temperature.
A
combination
situ
experiments
density
functional
theory
(DFT)
calculations
demonstrates
that
B‐doping
simultaneously
enhances
reduces
binding
intermediates
by
moderating
electronic
structure
bimetals.
As
result,
AgCd‐B
exhibits
Faraday
efficiency
(FE
)
99%
−0.8
V
versus
reversible
hydrogen
electrode
(RHE).
Additionally,
it
maintains
FE
over
92%
wide
potential
window
600
mV
(−0.6
−1.1
RHE).
Furthermore,
coupled
with
Zn
anode
assemble
batteries
shows
power
20.18
mW
cm
−2
recharge
time
33
h.
Electrochimica Acta,
Journal Year:
2024,
Volume and Issue:
493, P. 144409 - 144409
Published: May 7, 2024
The
electrochemical
reduction
of
CO2
(eCO2R)
is
a
promising
approach
for
converting
into
valuable
chemicals
and
fuels
using
renewable
energy
sources.
We
investigated
the
mechanism
eCO2R
small
Cu8
cluster
placed
on
SnO2
containing
O
vacancies
density
functional
theory
predicted
current
selectivity
by
microkinetics
simulations
within
computational
hydrogen
electrode
model.
Low
high
H
coverages
were
modeled
Cu8/SnO2-x
Cu8H6/SnO2-x
models,
statistical
methods
to
identify
their
most
stable
structures.
Different
adsorption
modes
surface
all
an
vacancy,
resulted
in
distinct
reaction
pathways,
leading
either
HCOOH
or
CO.
preferred
formation
occurred
upon
vacancy
surface,
followed
sequential
hydrogenation
HCOO
HCOOH.
Adsorption
opened
facile
pathway
Electronic
structure
analysis
revealed
that
differences
charge
donation
Cu
antibonding
orbitals
can
explain
differences.
mode
bidentate
at
Cu-SnO2-x
interface.
Our
findings
emphasize
role
coverage
Cu/SnOx
catalysts.
