FeIr Alloy Optimizes the Trade‐Off Between Nitrate Reduction and Active Hydrogen Generation for Efficient Electro‐Synthesis of Ammonia in Neutral Media
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 10, 2025
Abstract
Electrochemically
promoted
nitrate
reduction
reaction
(NITRR)
holds
great
potential
for
the
“green”
synthesis
of
ammonia
(NH
3
).
However,
NITRR
in
neutral
media,
though
close
to
practical
scenario,
is
often
limited
by
an
insufficient
supply
active
hydrogen
(*H)
due
sluggish
water
cleavage.
In
this
work,
it
demonstrated
that
a
bimetallic
alloy
FeIr
can
optimize
trade‐off
between
and
*H
formation
media.
As
result,
exhibits
excellent
catalytic
performance
toward
with
Faradaic
efficiency
NH
up
97.3%
high
yield
rate
11.67
mg
h
−1
cm
−2
at
low
working
−0.6
V
(versus
reversible
electrode
(RHE)),
surpassing
monometallic
catalysts
as
well
majority
Fe‐based
state‐of‐the‐art.
It
also
found
displays
remarkable
electron
rearrangement
hetero‐atoms
their
significant
orbital
hybridization,
which
benefits
not
only
but
process.
Moreover,
coupling
FeIr‐based
methanol
oxidation
(MOR)
results
sustainable
productions
formate
combined
FE
nearly
200%
cell‐voltage
2
V.
This
work
thus
demonstrates
promising
strategy
designing
efficient
NITRR.
Язык: Английский
Boosting Electrochemical Urea Synthesis via Cooperative Electroreduction Through the Parallel Reduction
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 16, 2025
Abstract
Despite
recent
achievements
in
the
co‐reduction
electrosynthesis
of
urea
from
nitrogen
wastes
and
CO
2
,
selectivity
yield
products
remain
fairly
average
because
competition
NITRR,
RR,
HER.
Here,
a
strategy
involving
FeNC
catalysts
disperse
with
oxygen‐vacancy‐rich
CeO
(FeNC‐Ce)
is
illustrated,
which
reversible
hydrogenation
defects,
bimetallic
catalytic
centers
enable
spontaneous
switching
between
reduction
paths
NO
3
−
.
The
FeNC‐Ce
electrocatalyst
exhibits
an
extremely
high
Faraday
efficiency
(FE)
20969.2
µg
mg
−1
h
89.3%,
respectively,
highly
superior
to
most
reported
values
(maximum
200–2300
FE
max
11.5%–83.4%).
study
findings,
rationalize
by
situ
spectroscopy
theoretical
calculations,
are
rooted
evolution
dynamic
NITRR
RR
protons,
alleviating
overwhelming
single‐system
reactants
thereby
minimizing
formation
by‐products.
Язык: Английский
Bimetal anchoring porous MXene nanosheets for driving tandem catalytic high‐efficiency electrochemical nitrate reduction
Rongyu Guo,
Zhijie Cui,
Tianyang Yu
и другие.
AIChE Journal,
Год журнала:
2024,
Номер
71(2)
Опубликована: Окт. 17, 2024
Abstract
Electrochemical
nitrate
reduction
reaction
(NO
3
RR)
is
considered
a
promising
strategy
for
ammonia
synthesis
and
removal,
in
which
catalyst
development
crucial.
Herein,
series
of
bimetal
(Co
Cu)
anchoring
porous
MXene
nanosheets
x
Cu
y
@PM)
catalysts
were
prepared
by
combining
etching
strategy.
On
the
one
hand,
Co
bimetals
provided
tandem
catalytic
active
sites
NO
RR.
other
in‐plane
PM
exhibited
good
electrical
conductivity
multiple
transport
pathways.
Consequently,
optimized
7
@PM
achieved
high
yield
7.43
mg
h
−1
cat.
an
excellent
Faraday
efficiency
(FE)
95.9%.
The
mechanism
RR
was
investigated
analyzing
electrolysis
products
situ
Fourier
transform
infrared
spectroscopy.
Furthermore,
based
ZnNO
−
battery
superior
power
density
5.59
mW
cm
−2
NH
FE
92.3%.
This
work
presents
effective
to
design
MXene‐based
high‐performance
electrocatalysts.
Язык: Английский
When Electrocatalytic Nitrate Reduction Meets Copper-based Atomic Site Catalysts
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
This
manuscript
comprehensively
reviews
the
recent
advancements
in
Cu-based
atomic
site
catalysts
NO
3
RR,
following
a
sequential
order
with
six
sections:
Introduction,
Mechanism,
SACs,
SAAs,
DACs,
and
Perspectives.
Язык: Английский
Electron Localization Regulated by Confined Co3o4 Enhances Electrocatalytic Nitrate Reduction to Ammonia
Опубликована: Янв. 1, 2025
Язык: Английский
Recent Progress in Electrochemical C–N Coupling: Metal Catalyst Strategies and Applications
Chemical Communications,
Год журнала:
2024,
Номер
60(78), С. 10822 - 10837
Опубликована: Янв. 1, 2024
Electrochemical
C-N
coupling
reactions
hold
significant
importance
in
the
fields
of
organic
chemistry
and
green
chemistry.
Conventional
methods
for
constructing
bonds
typically
rely
on
high
temperatures,
pressures,
other
conditions
that
are
energy-intensive
prone
to
generating
environmental
pollutants.
In
contrast,
electrochemical
approaches
employ
electrical
energy
as
driving
force
achieve
bond
formation
under
ambient
conditions,
representing
a
more
environment-friendly
sustainable
alternative.
The
notable
advantages
include
efficiency,
good
selectivity,
mild
reaction
conditions.
Through
rational
design
corresponding
electrocatalysts,
it
is
possible
efficient
at
low
potentials.
Moreover,
allow
precise
control
over
thereby
avoiding
side
by-products
common
conventional
methods,
improving
both
selectivity
product
purity.
Despite
extensive
research
efforts
devoted
exploring
potential
coupling,
stable
metal
catalysts
remains
challenge.
this
review,
we
summarize
evaluate
latest
strategies
developed
designing
catalysts,
their
application
prospects
different
nitrogen
sources
such
N
Язык: Английский