Advanced Sustainable Systems,
Journal Year:
2024,
Volume and Issue:
8(12)
Published: Aug. 25, 2024
Abstract
The
high
stability
and
persistence
of
nitrates
in
water
poses
a
serious
threat
to
human
health
ecosystems.
To
effectively
reduce
the
nitrate
content
wastewater,
electrochemical
reduction
reaction
(e‐NO
3
RR)
is
widely
recognized
as
an
ideal
treatment
method
due
its
reliability
efficiency.
selection
catalyst
material
plays
decisive
role
e‐NO
RR
performance.
Copper‐based
catalysts,
with
their
ease
acquisition,
activity,
selectivity
for
NH
,
have
emerged
most
promising
candidates
applications.
In
this
paper,
mechanism
first
introduced.
Then
relationship
between
structural
properties
catalytic
performance
copper‐based
catalysts
analyzed
detail
from
four
aspects:
nanomaterials,
oxides,
monoatomic,
bimetallic
materials.
Strategies
constructing
efficient
are
discussed,
including
surface
modulation,
defect
engineering,
heteroatom
doping,
coordination
effects.
Finally,
challenges
prospects
practical
applications
outlined.
Coordination Chemistry Reviews,
Journal Year:
2024,
Volume and Issue:
518, P. 216061 - 216061
Published: July 8, 2024
The
pervasive
contamination
of
industrial,
domestic,
and
agricultural
wastewater
with
nitrate
poses
profound
ecological
public
health
risks.
Traditional
methods
for
remediating
nitrate-laden
water
face
formidable
challenges
due
to
its
high
solubility
stability.
However,
a
promising
solution
emerges
in
the
form
electrochemical
reduction
(eNO3RR),
offering
both
efficient
removal
valuable
ammonia
generation
sustainable
manner.
This
review
explores
burgeoning
field
eNO3RR,
focusing
on
recent
advancements
utilizing
porous
crystalline
framework
materials
−
metal–organic
frameworks
(MOFs)
covalent-organic
(COFs)
as
novel
class
electrocatalysts.
These
innovative
exhibit
unique
properties
such
adjustable
porosity,
diverse
structures,
tunable
pore
sizes,
well-defined
active
sites,
making
them
ideal
candidates
enhancing
efficiency
selectivity
under
ambient
conditions.
By
dissecting
structure–activity
relationship
inherent
MOF/COF-based
electrocatalysts,
this
aims
provide
comprehensive
understanding
their
role
driving
conversion
NO3−
NH3.
Moreover,
it
identifies
current
proposes
future
prospects
leveraging
these
advanced
pollutants,
glimpse
into
greener
more
effective
approach
remediation
resource
recovery.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(41)
Published: Aug. 7, 2024
Abstract
The
electrochemical
nitrate
reduction
for
green
ammonia
production
is
attracting
increasing
attention,
where
the
catalysts
are
widely
investigated
by
controlling
compositions
or
structures
to
achieve
high
performance.
However,
their
reconstructions
under
potentials
inevitable
and
uncontrollable,
leading
uncertain
performance,
a
confused
understanding
of
mechanism.
In
this
work,
strategy
proposed
pre‐catalyst's
reconstruction
chemistry
toward
reaction
(e‐NO
3
RR)
with
superior
activity
stability.
To
demonstrate
idea,
pre‐catalyst
fabricated
α
‐Co(OH)
2
Cu(OH)
(
/Cu(OH)
),
which
in
situ
reconstructed
tandem
catalyst
Cu
β
(Cu/
β‐
Co(OH)
)
working
potential.
Cu/
achieves
an
optimal
Faraday
efficiency
97.7%
yield
rate
3.9
mmol
h
−1
cm
−2
at
−0.5
V,
outperforming
other
reported
metal‐hydroxide
catalysts.
experimental
theoretical
results
that
catalytic
mechanism
responsible
exceptional
performance:
1)
functions
as
donor
nitrite;
2)
serves
active
sites
generating
hydrogen
reducing
nitrogen‐containing
groups.
This
work
highlights
controllable
improved
performance
can
be
realized,
provides
insightful
mechanism,
helpful
developing
stable
various
applications.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 21, 2025
Photoelectrochemical
nitrate
reduction
has
been
a
promising
method
for
ammonia
(NH3)
production
under
normal
temperatures
and
neutral
conditions.
However,
hydrogenation
is
key
process
in
the
selective
of
NH3
during
reduction;
therefore,
inducing
active
hydrogen
inhibiting
are
noteworthy
problem.
In
this
study,
BiVO4/CuS
(BVO/CS)
heterostructure
constructed
photoelectrochemical
reaction
(PEC
NIRR).
The
introduction
CuS
optimizes
electron-transfer
ability
enhances
surface
catalytic
kinetics
BVO/CS.
At
same
time,
presence
sulfur
vacancies
on
promotes
adsorption
activation
nitrate,
realizes
splitting
H2O,
successfully
generates
abundant
radicals
(H*).
generated
H*
effectively
utilized
NIRR.
yield
selectivity
optimal
BVO/CS
reach
30.55
μg
h-1
cm-2
43.8%,
respectively,
which
2.65
2.39
times
that
bare
BVO.
Therefore,
work
determines
role
hydrogenation,
providing
novel
strategy
boosting
PEC
CuS/BiVO4
was
fabricated
reduction.
Sulfur
defects
enabled
generation
radicals,
promoted
production.
