ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(11), С. 13858 - 13868
Опубликована: Март 5, 2024
Large
volume
strain
and
slow
kinetics
are
the
main
obstacles
to
application
of
high-specific-capacity
alloy-type
metal
tellurides
in
potassium-ion
storage
systems.
Herein,
Bi2Te3-x
nanocrystals
with
abundant
Te-vacancies
embedded
nitrogen-doped
porous
carbon
nanofibers
(Bi2Te3-x@NPCNFs)
proposed
address
these
challenges.
In
particular,
a
hierarchical
fiber
structure
can
be
achieved
by
polyvinylpyrrolidone-etching
method
is
conducive
increasing
Te-vacancy
concentration.
The
unique
together
defect
engineering
modulates
potassium
mechanism
Bi2Te3,
suppresses
structural
distortion,
accelerates
K+
diffusion
capacity.
meticulously
designed
Bi2Te3-x@NPCNFs
electrode
exhibits
ultrastable
cycling
stability
(over
3500
stable
cycles
at
1.0
A
g-1
capacity
degradation
only
0.01%
per
cycle)
outstanding
rate
capability
(109.5
mAh
2.0
g-1).
Furthermore,
systematic
ex
situ
characterization
confirms
that
undergoes
an
"intercalation-conversion-step
alloying"
for
storage.
Kinetic
analysis
density
functional
theory
calculations
reveal
excellent
pseudocapacitive
performance,
attractive
adsorption,
fast
ability
electrode,
which
essential
Impressively,
assembled
Bi2Te3-x@NPCNFs//activated-carbon
hybrid
capacitors
achieve
considerable
energy/power
(energy
up
112
Wh
kg-1
power
1000
W
kg-1)
(1600
10.0
g-1),
indicating
their
potential
practical
applications.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(32)
Опубликована: Март 25, 2024
Abstract
Understanding
of
fundamental
mechanism
and
kinetics
the
oxygen
evolution
reaction
(OER)
is
pivotal
for
designing
efficient
OER
electrocatalysts
owing
to
its
key
role
in
electrochemical
energy
conversion
devices.
In
past
few
years,
lattice
oxidation
(LOM)
arising
from
anodic
redox
chemistry
has
attracted
significant
attention
as
it
involves
a
direct
O─O
coupling
thus
bypasses
thermodynamic
limitations
traditional
adsorbate
(AEM).
Transition
metal‐based
oxyhydroxides
are
generally
acknowledged
real
catalytic
phase
alkaline
media.
particular,
their
low‐dimensional
layered
structures
offer
sufficient
structural
flexibility
trigger
LOM.
Herein,
comprehensive
overview
provided
recent
advances
anion
LOM‐based
electrocatalysts.
Based
on
analyses
electronic
structure
LOM,
strategy
proposed
activate
Possible
identification
techniques
corroboration
also
reviewed.
addition,
reconstruction
process
induced
by
LOM
focused
importance
multiple
situ/operando
characterizations
highlighted
unveil
chemical
origins
To
conclude,
prospect
remaining
challenges
future
opportunities
presented.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(29), С. 20251 - 20262
Опубликована: Июль 12, 2024
A
strain
engineering
strategy
is
crucial
for
designing
a
high-performance
catalyst.
However,
how
to
control
the
in
metastable
phase
two-dimensional
(2D)
materials
technically
challenging
due
their
nanoscale
sizes.
Here,
we
report
that
cerium
dioxide
(CeO
Chemical Society Reviews,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
This
review
systematically
provides
various
insights
into
the
pH
effect
on
hydrogen
electrocatalysis,
and
thus
providing
a
reference
for
future
development
of
electrocatalysis
based
these
insights.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Март 1, 2025
Strain
engineering
offers
an
attractive
strategy
for
improving
intrinsic
catalytic
performance
of
a
heterogeneous
catalyst.
Herein,
we
successfully
create
strain
into
layered
indium
sulfide
(In2S3)
at
atomic
scale
via
introducing
oxygen
coordination
and
sulfur
vacancy
using
wet-chemistry
method.
The
atomically
strained
In2S3
exhibits
greatly
enhanced
CO2
photoreduction
performance,
achieving
to
CO
conversion
rate
5.16
μmol
gcatalyst−1
h−1
under
visible
light
illumination
in
ambient
air.
In-situ
spectroscopic
measurements
together
with
theoretical
calculations
indicate
that
the
features
lattice
disordered
defects
on
surface,
which
provides
rich
uncoordinated
sites
induces
structural
distortion,
resulting
modified
band
structure
promotes
adsorption/activation
boosts
photogenerated
charge
carriers'
separation
during
photoreduction.
This
work
new
approach
rational
design
photocatalysts
reduction
Achieving
visible-light-driven
air
is
significant
yet
challenging.
Here,
authors
introduce
promoted
activation
boosted
carrier
atmospheric
