Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 13, 2024
Abstract
Electrocatalytic
formaldehyde
oxidation
with
metal
Cu
electrocatalyst
has
attracted
significant
interest
since
it
can
produce
H
2
at
the
anode
and
make
possible
to
construct
a
bipolar
hydrogen
production
cell
low
voltage.
However,
activity
of
will
be
greatly
weakened
after
oxidizing
+
or
2+
.
Here,
CuFe
bimetallic
catalyst
is
developed
efficiently
catalyze
electro‐oxidation
process
HCHO
potential
0.10
V
RHE
current
density
100
mA
cm
−2
It
confirmed
that
introducing
Fe
in
regulate
electron
configuration
prevent
0
improve
stability
catalysts.
The
introduction
reduce
energy
barrier
reaction
process,
C─H
bond
more
easily
split
on
CuFe.
A
device
constructed
by
combining
anodic
cathodic
evolution.
500
achieved
voltage
0.6
V.
faradaic
efficiency
≈100%
stable
for
≈50
h.
research
provides
promising
path
toward
secure,
effective,
expandable
generation
high‐purity
both
electrodes.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 1, 2024
Abstract
The
abundant
chloride
ions
in
seawater,
which
poison
and
corrode
electrode
materials,
are
the
main
reason
for
low
performance
of
Pt‐based
catalysts
toward
hydrogen
evolution
reaction
(HER)
seawater.
Coupling
Pt
with
oxophilic
transition
metals
can
enhance
activity
electrocatalysts,
but
their
long‐term
stability
is
still
unsatisfactory.
Herein,
a
small
number
phosphorous
atoms
(from
1.2
to
5.9
at%)
precisely
incorporated
into
PtNi
networks
(P‐PtNi
networks)
via
facile
aqueous
reduction
strategy
at
room
temperature.
Experimental
measurements
theoretical
calculations
prove
that
P
incorporation
leads
synergistic
directional
electron
transfer
from
Ni
Pt,
resulting
improved
water
dissociation
kinetics,
enhanced
Cl
–
resistance
facilitated
adsorption.
Consequently,
P‐PtNi
exhibit
outstanding
HER
activities
lower
overpotential
37
mV
10
mA
cm
−2
an
8.5‐fold
higher
mass
–0.07
V
compared
commercial
Pt/C
only
slightly
lowered
potential
after
120
h
testing
alkaline
simulated
Furthermore,
show
ultrahigh
solar‐to‐hydrogen
efficiency
15.2%
solar
cell‐driven
production
This
work
sheds
new
lights
on
design
high‐performance
nanomaterials
practical
applications
seawater
production.
Chemical Society Reviews,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 4, 2024
This
review
explores
the
latest
developments
in
CO
2
electroreduction
based
systems,
including
coupling
reaction
co-reduction
cascade
and
integrated
capture
conversion
systems.
Abstract
Emissions
of
nitrogen
oxide
(NO
x
)
species
and
NO
2
nitrate/nitrite
−
,
such
as
3
have
led
to
serious
water
pollution
climate
challenges.
How
remove
these
wastes
is
a
global
problem
that
urgently
needs
be
addressed.
As
reported,
electrochemical
catalytic
technology
under
ambient
conditions
great
interest
for
/NO
removal.
Additionally,
the
in
situ
utilization
surface‐adsorbed
nucleophilic
intermediates
generated
from
reduction
can
provide
sustainable
strategy
building
C−N
bonds,
upgrading
waste
into
value‐added
organic
products,
amines,
oximes,
amides,
amino
acids,
while
remediating
environment.
This
review
summarizes
most
recent
progress
construction
compounds
by
coupling
reactions
with
inorganic/organic
substrates,
focuses
on
understanding
adsorption–transformation
mechanism
during
process,
discusses
multiple
side
complex
pathways.
Important
strategies,
coupled
system
development
catalyst
preparation,
are
also
presented
broaden
range
improve
yields.
Finally,
few
key
challenges
future
research
directions
efficient
low‐cost
processes
discussed.
Abstract
Urea
(CO(NH
2
)
is
the
main
component
of
nitrogen‐based
fertilizers
and
widely
used
in
various
industries.
Until
now,
urea
production
conducted
under
high‐temperature
high‐pressure
conditions,
which
involves
a
considerable
carbon
footprint.
electrosynthesis,
powered
by
renewable
energy‐derived
electricity,
has
emerged
as
sustainable
single‐step
process
for
production.
The
development
efficient
stable
catalysts
key
to
improving
efficiency
electrosynthesis.
In
this
review,
we
summarized
research
progress
applications
with
atomic‐scale
reactive
sites
First,
catalytic
mechanisms
electrosynthesis
from
CO
nitrogenous
molecules
are
discussed.
Then,
typical
electrocatalysts
such
single‐atom
electrocatalysts,
dual‐atom
clusters,
atomic
dopants,
vacancies,
so
forth,
Furthermore,
characterization
methods
summarized.
Finally,
challenges
suggestions
proposed.
We
hope
review
can
provide
some
inspiration
toward
Abstract
The
electrocatalytic
C–N
coupling
reaction
can
achieve
green
and
sustainable
urea
synthesis
as
well
CO
2
conversion
nitrogen
fixation.
However,
the
still
faces
challenges
such
difficult
adsorption
activation
of
reactive
species,
a
large
number
intermediates,
high
energy
barriers,
inert
kinetics,
resulting
in
low
yielding
rate
Faradic
efficiency.
development
efficient
catalysts
is
key
to
improve
This
review
covers
history
basic
principles
for
production,
analyzes
nanostructure–catalytic
activity
relationship
electronic
structure–catalytic
relationship,
discusses
main
mechanism
production.
Based
on
these
analyses,
concept
designing
derived.
Finally,
research
status
summarized,
prospect
developing
electrocatalysts
are
proposed.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 13, 2024
Abstract
Electrocatalytic
formaldehyde
oxidation
with
metal
Cu
electrocatalyst
has
attracted
significant
interest
since
it
can
produce
H
2
at
the
anode
and
make
possible
to
construct
a
bipolar
hydrogen
production
cell
low
voltage.
However,
activity
of
will
be
greatly
weakened
after
oxidizing
+
or
2+
.
Here,
CuFe
bimetallic
catalyst
is
developed
efficiently
catalyze
electro‐oxidation
process
HCHO
potential
0.10
V
RHE
current
density
100
mA
cm
−2
It
confirmed
that
introducing
Fe
in
regulate
electron
configuration
prevent
0
improve
stability
catalysts.
The
introduction
reduce
energy
barrier
reaction
process,
C─H
bond
more
easily
split
on
CuFe.
A
device
constructed
by
combining
anodic
cathodic
evolution.
500
achieved
voltage
0.6
V.
faradaic
efficiency
≈100%
stable
for
≈50
h.
research
provides
promising
path
toward
secure,
effective,
expandable
generation
high‐purity
both
electrodes.
