Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(17)
Published: June 9, 2023
Natural
nitrogen
cycle
has
been
severely
disrupted
by
anthropogenic
activities.
The
overuse
of
N-containing
fertilizers
induces
the
increase
nitrate
level
in
surface
and
ground
waters,
substantial
emission
oxides
causes
heavy
air
pollution.
Nitrogen
gas,
as
main
component
air,
used
for
mass
ammonia
production
over
a
century,
providing
enough
nutrition
agriculture
to
support
world
population
increase.
In
last
decade,
researchers
have
made
great
efforts
develop
processes
under
ambient
conditions
combat
intensive
energy
consumption
high
carbon
associated
with
Haber-Bosch
process.
Among
different
techniques,
electrochemical
reduction
reaction
(NO
Chemical Society Reviews,
Journal Year:
2023,
Volume and Issue:
52(5), P. 1723 - 1772
Published: Jan. 1, 2023
Defective
two-dimensional
(2D)
materials
show
huge
potential
for
energy-related
fields.
This
review
overviews
the
formation/evolution
mechanisms
and
engineering
strategies
of
defects
in
2D
materials,
which
enable
enhanced
electrode
reaction
kinetics.
Energy & Environmental Science,
Journal Year:
2023,
Volume and Issue:
16(7), P. 2991 - 3001
Published: Jan. 1, 2023
Laser-constructed
CuNi
alloy
electrodes
with
tandem
sites
of
Ni
provide
H*
and
Cu
for
NO
3
−
reduction,
achieving
ampere-level
reduction
high-performance
Zn–NO
batteries.
Proceedings of the National Academy of Sciences,
Journal Year:
2023,
Volume and Issue:
120(32)
Published: July 31, 2023
Electrochemical
nitrate
reduction
reaction
(NO
3
RR)
to
ammonia
has
been
regarded
as
a
promising
strategy
balance
the
global
nitrogen
cycle.
However,
it
still
suffers
from
poor
Faradaic
efficiency
(FE)
and
limited
yield
rate
for
production
on
heterogeneous
electrocatalysts,
especially
in
neutral
solutions.
Herein,
we
report
one-pot
synthesis
of
ultrathin
nanosheet-assembled
RuFe
nanoflowers
with
low-coordinated
Ru
sites
enhance
NO
RR
performances
electrolyte.
Significantly,
exhibit
outstanding
FE
92.9%
38.68
mg
h
−1
cat
(64.47
)
at
−0.30
−0.65
V
(vs.
reversible
hydrogen
electrode),
respectively.
Experimental
studies
theoretical
calculations
reveal
that
are
highly
electroactive
an
increased
d-band
center
guarantee
efficient
electron
transfer,
leading
low
energy
barriers
reduction.
The
demonstration
rechargeable
zinc-nitrate
batteries
large-specific
capacity
using
indicates
their
great
potential
next-generation
electrochemical
systems.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(28)
Published: March 3, 2024
Abstract
Electrochemically
reducing
nitrate
(NO
3
−
),
a
common
water
pollutant,
to
valuable
ammonia
(NH
)
offers
green,
sustainable,
and
decentralized
route
for
synthesis.
Electrochemical
reduction
reaction
RR)
involves
two
crucial
steps:
deoxygenation
followed
by
nitrite
hydrogenation;
in
particular,
the
hydrogenation
is
rate‐determining
step
(RDS)
NO
RR.
In
this
work,
an
atomically
dispersed
cobalt‐phosphorus
(Co─P)
catalytic
pair
(CP)
with
strong
electronic
coupling
reported.
The
Co
site
Co─P
CP
effectively
activates
,
while
P
facilitates
dissociation
release
H
+
synergistically
enhancing
thermodynamic
kinetic
performance
of
electrochemical
ammonia.
ACS Catalysis,
Journal Year:
2023,
Volume and Issue:
13(15), P. 10394 - 10404
Published: July 25, 2023
Electrochemical
reformation
of
nitrate
wastewater
and
poly(ethylene
terephthalate)
(PET)
plastic
waste
into
ammonia
(NH3)
fine
chemicals
is
a
sustainable
strategy
for
resource
utilization.
Herein,
co-production
system
glycolic
acid
(GA,
degradable
polymer
monomer)
constructed
by
coupling
reduction
ethylene
glycol
(EG,
in
PET
hydrolysate)
oxidation.
Low-crystalline
CoOOH
(LC-CoOOH/CF)
Pd
nanothorns
(Pd
NTs/NF)
grown
situ
on
the
metal
foam
substrates
are
employed
as
cathode
anode,
respectively.
The
high
density
amorphous
regions
LC-CoOOH/CF
enables
enhanced
adsorption
provides
abundant
active
sites,
ultimately
leading
to
an
Faradic
efficiency
(FE)
97.38
±
1.0%
at
−0.25
V
vs
reversible
hydrogen
electrode
(RHE).
Meanwhile,
unique
nanothorn
morphology
endows
NTs/NF
with
high-curvature
tip,
triggering
tip
effect
(TE)
promote
highly
selective
oxidation
EG
GA.
Furthermore,
two-electrode
system,
NH3
GA
operated
low
energy
consumption
(onset
voltage:
0.5
V),
much
lower
than
traditional
electrolysis
process
(1.4
V).
This
study
method
utilization
co-produce
value-added
chemicals.
Energy & Environmental Science,
Journal Year:
2023,
Volume and Issue:
16(5), P. 2239 - 2246
Published: Jan. 1, 2023
Metal
phthalocyanines
are
molecularly
engineered
as
efficient
electrocatalysts
for
reducing
nitrate
or
nitrite
wastes
to
ammonia
at
high
production
rates
with
selectivities.
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(21), P. 16205 - 16213
Published: Oct. 18, 2024
The
electrochemical
reduction
of
nitrate
ions
to
valuable
ammonia
enables
the
recovery
pollutants
from
industrial
wastewater,
thereby
synchronously
balancing
nitrogen
cycle
and
achieving
NH3
production.
However,
currently
reported
electrocatalysts
still
suffer
low
yield
rate,
Faradaic
inefficiency,
partial
current
density.
Herein,
a
strategy
based
on
regulation
d-band
center
by
Ru
doping
is
presented
boost
Theoretical
calculations
unravel
that
dopant
in
Ni
metal–organic
framework
shifts
neighboring
sites
upward,
optimizing
adsorption
strength
N-intermediates,
resulting
greatly
enhanced
reaction
performance.
synthesized
Ru-doped
rod
array
electrode
delivers
rate
1.31
mmol
h–1
cm–2
efficiency
91.5%
at
−0.6
V
versus
reversible
hydrogen
electrode,
as
well
good
cycling
stability.
In
view
multielectron
transfer
electrocatalytic
activity,
Zn-NO3–
battery
assembled
this
Zn
anode,
which
high
open-circuit
voltage
1.421
maximum
output
power
density
4.99
mW
cm–2,
demonstrating
potential
application
value.
