Abstract
Hydrogen
has
garnered
considerable
attention
as
an
environmentally
friendly
due
to
its
sustainability
and
exceptional
energy
density,
surpassing
other
chemical
fuels.
For
H
2
production,
electrochemical
water
splitting
is
economically
viable
eco‐friendly
method.
Developing
well‐organized
electrocatalysts
for
pivotal
in
enabling
long‐term
hydrogen
the
critical
component
transition
toward
a
cleaner
more
sustainable
landscape.
During
last
decades,
aid
oxygen
evolution
reactions,
numerous
tungsten
carbide‐based
have
been
established.
WC
developed
promising
candidate
electrolytic
generation.
This
review
first
explores
historical
background
fundamental
mechanisms
underlying
subsequently
investigates
field
of
WC‐based
electrocatalysts.
Furthermore,
both
HER
OER,
thorough
analysis
examines
electrocatalytic
performance
based
on
WC.
Finally,
it
discusses
challenges
prospects
developing
OER
HER,
shedding
light
their
potential
contributions
Electrocatalytic
CO2
reduction
into
high-value
multicarbon
products
offers
a
sustainable
approach
to
closing
the
anthropogenic
carbon
cycle
and
contributing
neutrality,
particularly
when
renewable
electricity
is
used
power
reaction.
However,
lack
of
efficient
durable
electrocatalysts
with
high
selectivity
for
multicarbons
severely
hinders
practical
application
this
promising
technology.
Herein,
nanoporous
defective
Au1Cu
single-atom
alloy
(De-Au1Cu
SAA)
catalyst
developed
through
facile
low-temperature
thermal
in
hydrogen
subsequent
dealloying
process,
which
shows
toward
ethylene
(C2H4),
Faradaic
efficiency
52%
at
current
density
252
mA
cm–2
under
potential
−1.1
V
versus
reversible
electrode
(RHE).
In
situ
spectroscopy
measurements
functional
theory
(DFT)
calculations
reveal
that
C2H4
product
results
from
synergistic
effect
between
Au
single
atoms
Cu
sites
on
surface
catalysts,
where
promote
*CO
generation
defects
stabilize
key
intermediate
*OCCO,
altogether
enhances
C–C
coupling
kinetics.
This
work
provides
important
insights
design
electrochemical
products.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 2, 2025
Abstract
The
electrochemical
CO
2
reduction
reaction
(CO
RR)
to
valuable
C
2+
products
emerges
as
a
promising
strategy
for
converting
intermittent
renewable
energy
into
high‐energy‐density
fuels
and
feedstock.
Leveraging
its
substantial
commercial
potential
compatibility
with
existing
infrastructure,
the
conversion
of
multicarbon
hydrocarbons
oxygenates
(C
)
holds
great
industrial
promise.
However,
process
is
hampered
by
complex
multielectron‐proton
transfer
reactions
difficulties
in
reactant
activation,
posing
significant
thermodynamic
kinetic
barriers
commercialization
production.
Addressing
these
necessitates
comprehensive
approach
encompassing
multiple
facets,
including
effective
control
C─C
coupling
electrolyzers
using
efficient
catalysts
optimized
local
environments.
This
review
delves
advancements
outstanding
challenges
spanning
from
microcosmic
macroscopic
scales,
design
nanocatalysts,
optimization
microenvironment,
development
electrolyzers.
By
elucidating
influence
electrolyte
environment,
exploring
flow
cells,
guidelines
are
provided
future
research
aimed
at
promoting
coupling,
thereby
bridging
microscopic
insights
applications
field
electroreduction.
Materials Chemistry Frontiers,
Год журнала:
2023,
Номер
8(3), С. 627 - 651
Опубликована: Окт. 31, 2023
This
review
provides
recent
progresses
in
bimetallic
carbides
(Bi-TMCs)
catalysts
for
the
hydrogen
evolution
reaction
(HER)
and
oxygen
(OER)
water
splitting.
Abstract
Hydrogen
has
garnered
considerable
attention
as
an
environmentally
friendly
due
to
its
sustainability
and
exceptional
energy
density,
surpassing
other
chemical
fuels.
For
H
2
production,
electrochemical
water
splitting
is
economically
viable
eco‐friendly
method.
Developing
well‐organized
electrocatalysts
for
pivotal
in
enabling
long‐term
hydrogen
the
critical
component
transition
toward
a
cleaner
more
sustainable
landscape.
During
last
decades,
aid
oxygen
evolution
reactions,
numerous
tungsten
carbide‐based
have
been
established.
WC
developed
promising
candidate
electrolytic
generation.
This
review
first
explores
historical
background
fundamental
mechanisms
underlying
subsequently
investigates
field
of
WC‐based
electrocatalysts.
Furthermore,
both
HER
OER,
thorough
analysis
examines
electrocatalytic
performance
based
on
WC.
Finally,
it
discusses
challenges
prospects
developing
OER
HER,
shedding
light
their
potential
contributions
