Small Structures,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 8, 2024
In
electrocatalytic
carbon
dioxide
reduction
(CO
2
RR),
indium
(In)‐based
catalysts
with
low
toxicity
and
environmental
benefits
are
renowned
for
their
specific
high
selectivity
formic
acid
intrinsic
inertia
the
competing
hydrogen
evolution
reaction.
However,
recent
studies
have
reported
various
products
over
In‐based
showing
comparable
or
even
higher
monoxide
(CO)
than
(HCOOH),
puzzling
reaction
pathway
CO
reduction.
This
article
presents
a
comprehensive
review
of
on
RR
highlighting
formation
products.
First,
mechanism
multiple
pathways
is
concluded
considering
relationship
between
intermediates
selectivity.
Furthermore,
regulation
strategies
product
summarized,
including
crystalline
phase
engineering,
alloying,
nanostructuring,
structural
modulation
single
atom,
where
effect
key
(*COOH,
*OOCH,
*OCHO)
generation
systematically
discussed
to
achieve
Finally,
mechanisms
these
analyzed
challenges
opportunities
development
next‐generation
proposed.
Chemical Science,
Год журнала:
2024,
Номер
15(21), С. 7870 - 7907
Опубликована: Янв. 1, 2024
This
review
highlights
the
structure–activity
relationship
of
ECO
2
RR,
provides
a
detailed
summary
advanced
materials
by
analyzing
electrocatalytic
applications
and
reaction
mechanisms,
discusses
challenges
in
both
devices.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(7), С. 3844 - 3878
Опубликована: Янв. 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.
Abstract
Doping
is
a
recognized
method
for
enhancing
catalytic
performance.
The
introduction
of
strains
common
consequence
doping,
although
it
often
overlooked.
Differentiating
the
impact
doping
and
strain
on
performance
poses
significant
challenge.
In
this
study,
Cu‐doped
Bi
catalysts
with
substantial
tensile
are
synthesized.
synergistic
effects
in
bismuth
result
remarkable
CO
2
RR
Under
optimized
conditions,
Cu
1/6
‐Bi
demonstrates
exceptional
formate
Faradaic
efficiency
(>95%)
maintains
over
90%
across
wide
potential
window
900
mV.
Furthermore,
delivers
an
industrial‐relevant
partial
current
density
−317
mA
cm
−2
at
−1.2
V
RHE
flow
cell,
while
maintaining
its
selectivity.
Additionally,
exhibits
long‐term
stability,
surpassing
120
h
−200
.
Through
experimental
theoretical
mechanistic
investigations,
has
been
determined
that
facilitates
adsorption
*CO
,
thereby
reaction
kinetics.
Moreover,
presence
dopants
further
diminishes
energy
barrier
formation
*OCHO
intermediate.
This
study
not
only
offers
valuable
insights
development
effective
through
but
also
establishes
correlations
between
lattice
strains,
properties
catalysts.
Bimetallic
nanoparticles
serve
as
a
vital
class
of
catalysts
with
tunable
properties
suitable
for
diverse
catalytic
reactions,
yet
comprehensive
understanding
their
structural
evolution
under
operational
conditions
well
optimal
design
principles
remains
elusive.
In
this
study,
we
unveil
prevalent
surface
segregation
phenomenon
in
approximately
100
platinum-group-element-based
bimetallic
through
molecular
dynamics
simulations
and
derive
thermodynamic
descriptor
to
predict
behavior.
Building
on
the
generality
predictability
segregation,
propose
leveraging
intentionally
enrich
nanoparticle
noble-metal
atoms,
thereby
significantly
reducing
usage
while
maintaining
high
activity
stability.
To
validate
strategy,
investigate
dozens
platinum-based
propane
dehydrogenation
catalysis
using
first-principles
calculations.
Through
systematic
examination
sites
surfaces,
eventually
identify
several
candidates
featuring
stable
Pt-enriched
superior
activity,
confirming
feasibility
approach.
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.
