Inorganic Chemistry,
Год журнала:
2023,
Номер
62(22), С. 8487 - 8493
Опубликована: Май 23, 2023
We
report
iron
diboride
(FeB2)
as
a
high-performance
metal
catalyst
for
electrochemical
NO-to-NH3
reduction
(NORR),
which
shows
maximum
NH3
yield
rate
of
289.3
μmol
h-1
cm-2
and
NH3-Faradaic
efficiency
93.8%
at
-0.4
V
versus
reversible
hydrogen
electrode.
Theoretical
computations
reveal
that
Fe
B
sites
synergetically
activate
the
NO
molecule,
while
protonation
is
energetically
more
favorable
on
sites.
Meanwhile,
both
preferentially
absorb
over
H
atoms
to
suppress
competing
evolution.
Abstract
Since
the
discovery
of
graphene,
research
on
family
2D
materials
has
been
a
thriving
field.
Metal
phosphorous
chalcogenides
(MPX
3
)
have
attracted
renewed
attention
due
to
their
distinctive
physical
and
chemical
properties.
The
advantages
MPX
,
such
as
tunable
layered
structures,
unique
electronic
properties,
thermodynamically
appropriate
band
alignments
abundant
catalytic
active
sites
surface,
make
material
great
potential
in
electrocatalysis.
In
this
review,
applications
electrocatalysts
recent
years,
including
hydrogen
evolution
reaction,
oxygen
reduction
are
summarized.
Structural
regulation,
doping
multi‐material
composite
that
often
effective
practical
methods
further
optimize
properties
these
materials,
introduced.
Finally,
challenges
opportunities
for
electrocatalytic
discussed.
This
report
aims
advance
future
efforts
develop
related
Journal of Materials Chemistry A,
Год журнала:
2023,
Номер
11(13), С. 6814 - 6819
Опубликована: Янв. 1, 2023
In
single
atoms
confined
in
amorphous
MoO
3
(In
1
/a-MoO
)
are
reported
to
be
an
efficient
catalyst
for
NO
electroreduction
NH
,
attributed
the
ability
of
single-site
inhibit
hydrogen
evolution
and
optimize
NO-to-NH
hydrogenation
energetics.
ACS Catalysis,
Год журнала:
2023,
Номер
13(14), С. 9550 - 9557
Опубликована: Июль 5, 2023
Electrocatalytic
NO
reduction
to
NH3
(NORR)
offers
a
prospective
method
for
removing
hazardous
and
producing
valuable
simultaneously.
Herein,
we
demonstrate
that
atomically
dispersed
W
on
Pd
metallene
(W1Pd)
can
be
an
efficient
robust
NORR
catalyst.
Atomic
coordination
characterizations
unravel
single
atoms
exist
as
W1–O3
moieties
bonded
metallene.
In
situ
spectroscopic
measurements
theoretical
calculations
reveal
the
synergistic
cascade
effect
of
promote
energetics
W1Pd,
in
which
activation
hydrogenation
occur
W1–O3,
while
dissociates
H2O
donates
protons
required
NH3.
Consequently,
W1Pd
exhibits
yield
rate
758.5
μmol
h–1
cm–2
with
NH3-Faradaic
efficiency
91.3%
flow
cell
(272.1
93.7%
H-type
cells),
ranking
almost
highest
performance
among
all
reported
catalysts.
Chemistry - A European Journal,
Год журнала:
2023,
Номер
29(23)
Опубликована: Янв. 11, 2023
Exploiting
effective
non-noble
metal
electrocatalysts
for
oxygen
reduction
reaction
(ORR)
is
crucial
fuel
cells
and
metal-air
batteries.
Herein,
we
designed
fabricated
Co
nanoparticles
confined
in
Mo/N
co-doped
polyhedral
carbon
frameworks
(Co-NP/MNCF)
derived
from
polyoxometalate-encapsuled
metal-organic
framework,
which
showed
comparable
ORR
performance
with
commercial
Pt/C
a
larger
diffusion-limited
current
density.
Moreover,
the
Co-NP/MNCF
also
exhibited
excellent
stability
methanol
tolerance.
These
appealing
performances
can
be
attributed
to
porosity
regulation
heteroatom
doping
of
framework
frameworks,
could
beneficial
exposure
more
active
sites,
optimization
electronic
structure
mass
transfer
electrolyte/electron/ion.
Inorganic Chemistry Frontiers,
Год журнала:
2023,
Номер
10(8), С. 2423 - 2429
Опубликована: Янв. 1, 2023
Here,
Mn-doped
FePSe
3
nanosheets
are
developed
as
an
efficient
bifunctional
electrocatalyst,
which
shows
high
activity
and
good
stability
toward
HMF
oxidation
hydrogen
evolution.
