Doping and defect engineering in carbon-based electrocatalysts for enhanced electrochemical CO2 reduction: From 0D to 3D materials
Advances in Colloid and Interface Science,
Год журнала:
2025,
Номер
339, С. 103429 - 103429
Опубликована: Фев. 6, 2025
Язык: Английский
Fe and Sn Single-Site-Based Electrodes for High-Current CO2 Reduction in Acid Media and Stable Zn–CO2 Batteries
ACS Applied Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 9, 2025
Electrocatalytic
CO2
conversion
is
a
promising
method
for
reducing
the
dependence
on
fossil
fuels
and
lowering
emissions.
However,
challenges
such
as
suppression
of
competing
hydrogen
evolution
reaction
(HER)
long-term
stability,
especially
in
acidic
media,
among
others,
hinder
its
industrial
application.
Herein,
Fe
Sn
single
sites
supported
an
N-doped
carbon
support
(FSNC)
was
prepared
by
direct
pyrolysis
selected
precursors.
XANES
EXAFS
measurements
confirmed
presence
atoms
coordinated
to
N
or
O
carbon.
An
analogous
material
synthesized
deposition
precursors
previously
fabricated
matrix
(FS/NC),
followed
thermal
reduction,
rendered
Fe–O
small
clusters
atoms.
FSNC
tested
obtaining
CO
Faradaic
efficiency
(FE)
92%,
while
FE
FS/NC
63%.
We
attributed
differences
selectivity
interaction
between
sites,
are
inactive
this
reaction.
Double-layer
capacitance
(CDL)
electrochemical
impedance
spectroscopy
(EIS)
larger
electrochemically
active
surface
area
lower
charge-transfer
resistance,
respectively,
FSNC.
In
addition,
demonstrated
high
(90%)
under
conditions
(pH
=
2.1),
demonstrating
that
electrocatalyst
can
effectively
suppress
HER
conditions.
Moreover,
5
cm2
electrodes
containing
were
fabricated,
their
stability
20
h
continuous
operation
flow
cell
at
different
current
densities
(50–350
mA/cm2),
improved
Finally,
FSCN-based
cathodes
also
Zn–CO2
battery,
achieving
maximum
power
density
2.54
mW/cm2
0.48
V
with
5.2
mA/cm2
outstanding
rechargeability
upon
50
charge–discharge
cycles
h.
Язык: Английский
Carbon Nanosheet-Supported Ag/CoO Catalysts for Efficient CO2 Reduction
Energy & Fuels,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 24, 2025
Язык: Английский
Development of catalysts and reactor designs for CO2 electroreduction towards C2+ products
Energy Materials,
Год журнала:
2025,
Номер
5(5)
Опубликована: Фев. 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.
Язык: Английский
Physical Vapor Deposition Techniques for CO2 Electroreduction: A Review
Small Structures,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 8, 2025
CO
2
electroreduction
offers
a
promising
approach
to
reducing
the
human
carbon
footprint
by
converting
into
fuels
and
valuable
chemicals.
Physical
vapor
deposition
(PVD)
techniques,
including
sputtering,
thermal
evaporation,
pulsed
laser
deposition,
enable
fabrication
of
high‐performance
catalysts
with
controlled
morphology,
strong
adhesion,
high
purity.
These
methods
allow
precise
customization
surface
features,
enhancing
catalyst
stability
efficiency.
PVD
facilitates
various
materials,
such
as
metal
oxides,
alloys,
nanocomposites,
making
it
essential
for
developing
durable
energy
conversion
environmental
applications.
This
review
explores
role
in
reduction,
focusing
on
its
advantages
over
alternative
techniques
like
electrodeposition
chemical
deposition.
It
highlights
PVD's
ability
produce
uniform,
reproducible
films
tailored
catalytic
properties.
Challenges
related
scalability,
uniformity,
efficiency
are
discussed,
along
potential
solutions
codeposition,
multilayer
strategies,
hybrid
approaches.
Future
advancements
material
design
also
considered
enhance
performance.
By
addressing
these
aspects,
this
provides
insights
optimizing
PVD‐based
efficient
stable
reduction.
Язык: Английский
Functional Group Engineering of Single‐Walled Carbon Nanotubes for Anchoring Copper Nanoparticles Toward Selective CO2 Electroreduction to C2 Products
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 3, 2025
Abstract
Electroreduction
of
carbon
dioxide
(CO
2
)
is
a
key
strategy
for
achieving
net‐zero
emissions.
Copper
(Cu)‐based
electrocatalysts
have
shown
promise
CO
conversion
into
valuable
chemicals
but
are
hindered
by
limited
C
2+
product
selectivity
due
to
competing
hydrogen
evolution
and
ineffective
dimerization
adsorbed
intermediate
(
*
CO).
Here,
functional‐group‐directed
reported
enhance
using
single‐walled
nanotubes
(SWCNTs)
as
supports.
The
catalytic
performance
Cu
nanoparticles
strongly
influenced
the
type
density
functional
groups
on
SWCNTs.
Optimized
Cu/amine‐functionalized
SWCNTs
achieved
Faradaic
efficiency
66.2%
partial
current
−270
mA
cm
−2
products
within
flow
cell,
outperforming
Cu/SWCNTs
Cu/cyano‐functionalized
Density
theory
calculations
revealed
that
electron‐donating
amine
can
facilitate
electron
transfer
from
graphite
sheet
atoms,
thereby
shifting
d‐band
center
upward.
This
shift
enhances
its
hydrogenation
derivative
adsorption
promotes
water
splitting,
leading
an
increased
tendency
generation
products.
In
situ
infrared
Raman
spectroscopy
confirm
enhancement
CHO
coverage,
facilitating
C─C
coupling.
work
provides
molecular
framework
exploring
interactions
between
active
metals
in
electrolysis,
offering
insights
designing
catalysts
broad
range
electrocatalytic
processes.
Язык: Английский
Recent advances in the measurement of thermochemical, electrochemical and photochemical efficiency of CO2 conversion to value-added products - its challenges and future directions
Deleted Journal,
Год журнала:
2025,
Номер
unknown, С. 100049 - 100049
Опубликована: Апрель 1, 2025
Язык: Английский