Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
32(19)
Published: Feb. 4, 2022
Abstract
The
electrocatalytic
nitrogen
reduction
reaction
(NRR)
to
ammonia
(NH
3
)
is
a
highly
desirable
yet
challenging
objective
because
of
the
competing
hydrogen
evolution
(HER).
Herein,
novel
electrocatalyst
Sn‐doped
black
phosphorene
(Sn‐BP
ene
demonstrated
with
dramatically
improved
selectivity
for
NRR.
Sn
that
added
acts
as
sacrificial
species
HER
protect
NRR
active
sites
on
(BP
).
Sn‐BP
achieves
Faraday
efficiency
up
36.51%
and
prominent
NH
yield
rate
26.98
µg
h
–1
mg
cat
at
relatively
low
overpotential.
Density
functional
theory
calculations
prove
adsorption
H
2
O
N
are
separated
after
doping
Sn,
adsorbing
preferentially
onto
BP
,
leading
high
selectivity.
ACS Energy Letters,
Journal Year:
2023,
Volume and Issue:
8(3), P. 1281 - 1288
Published: Feb. 3, 2023
Electrocatalytic
NO
reduction
to
NH3
(NORR)
offers
a
prospective
approach
attain
both
harmful
removal
and
efficient
electrosynthesis.
Main-group
p-block
metals
are
promising
NORR
candidates
but
still
lack
adequate
exploration.
Herein,
Sb
single
atoms
confined
in
amorphous
MoO3
(Sb1/a-MoO3)
designed
as
an
catalyst,
exhibiting
the
highest
yield
rate
of
273.5
μmol
h–1
cm–2
NO-to-NH3
Faradaic
efficiency
91.7%
at
−0.6
V
vs
RHE.
In
situ
spectroscopic
characterizations
theoretical
computations
reason
that
outstanding
performance
Sb1/a-MoO3
arises
from
isolated
Sb1
sites,
which
can
optimize
adsorption
*NO/*NHO
lower
reaction
energy
barriers
simultaneously
exhibit
higher
affinity
than
H2O/H
species.
Moreover,
our
strategy
be
extended
prepare
Bi1/a-MoO3,
showing
high
property,
demonstrating
immense
potential
metal
single-atom
catalysts
toward
high-performing
electrocatalysis.
Journal of Materials Chemistry A,
Journal Year:
2021,
Volume and Issue:
10(4), P. 1742 - 1749
Published: Dec. 24, 2021
Amorphous
VSe
2−
x
nanosheets
with
abundant
Se-vacancies
(V
Se
)
showed
dramatically
enhanced
NRR
activity
and
selectivity,
attributed
to
the
amorphization-triggered
that
promote
impeding
H
2
evolution.
Nano Letters,
Journal Year:
2023,
Volume and Issue:
23(5), P. 1735 - 1742
Published: Feb. 14, 2023
We
design
single-atom
W
confined
in
MoO3-x
amorphous
nanosheets
(W1/MoO3-x)
comprising
W1-O5
motifs
as
a
highly
active
and
durable
NORR
catalyst.
Theoretical
operando
spectroscopic
investigations
reveal
the
dual
functions
of
to
(1)
facilitate
activation
protonation
NO
molecules
(2)
promote
H2O
dissociation
while
suppressing
*H
dimerization
increase
proton
supply,
eventually
resulting
self-tandem
mechanism
W1/MoO3-x
greatly
accelerate
energetics
NO-to-NH3
pathway.
As
result,
exhibits
highest
NH3-Faradaic
efficiency
91.2%
NH3
yield
rate
308.6
μmol
h-1
cm-2,
surpassing
that
most
previously
reported
catalysts.
Chemical Society Reviews,
Journal Year:
2023,
Volume and Issue:
52(9), P. 3215 - 3264
Published: Jan. 1, 2023
This
review
summarizes
engineering
strategies
to
modify
MXene-based
catalysts
and
their
active
site
identification
for
applications
in
electrochemical
conversion
reactions.
iScience,
Journal Year:
2023,
Volume and Issue:
26(7), P. 107100 - 107100
Published: June 16, 2023
Electrochemical
reduction
of
nitrite
(NO2-)
can
satisfy
the
necessity
for
NO2-
contaminant
removal
and
deliver
a
sustainable
pathway
ammonia
(NH3)
generation.
Its
practical
application
yet
requires
highly
efficient
electrocatalysts
to
boost
NH3
yield
Faradaic
efficiency
(FE).
In
this
study,
CoP
nanoparticle-decorated
TiO2
nanoribbon
array
on
Ti
plate
(CoP@TiO2/TP)
is
verified
as
high-efficiency
electrocatalyst
selective
NH3.
When
measured
in
0.1
M
NaOH
with
NO2-,
freestanding
CoP@TiO2/TP
electrode
delivers
large
849.57
μmol
h-1
cm-2
high
FE
97.01%
good
stability.
Remarkably,
subsequently
fabricated
Zn-NO2-
battery
achieves
power
density
1.24
mW
while
delivering
714.40
μg
cm-2.
