Molecules,
Год журнала:
2024,
Номер
29(24), С. 5906 - 5906
Опубликована: Дек. 14, 2024
Nickel
disulfide
(NiS2)
nanoparticles
are
encapsulated
within
nitrogen
and
sulfur
co-doped
carbon
nanosheets,
which
grown
onto
nanofibers
to
form
an
array
structure
(NiS2/C@CNF),
resulting
in
a
self-supporting
film.
This
not
only
prevents
the
agglomeration
of
NiS2
nanoparticles,
but
also
memorably
buffers
its
volume
changes
during
charge/discharge
cycles,
thereby
maintaining
structural
integrity.
The
co-doping
enhances
electronic
conductivity
facilitates
faster
ion
transport
backbone,
improving
low
NiS2/C@CNF
anodes.
Consequently,
electrode
exhibits
remarkable
rate
ability,
reaching
55.4%
capacity
at
5
A
g−1
compared
that
0.1
g−1,
alongside
impressive
cycling
stability,
with
89.9%
retention
over
1500
cycles
2
g−1.
work
underscores
efficacy
3D
backbone
encapsulation
strategy
for
enhancing
sodium
storage
property
transition
metal-based
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 2, 2025
Abstract
The
development
of
easily
synthesized
high‐performance
anode
materials
is
crucial
for
the
current
energy
storage
(ES)
field.
Considering
potential
nitrogen‐doped
core‐shell
mesoporous
carbon
materials,
a
simple
micelle‐induced
high‐temperature
pyrolysis
method
employed
to
synthesize
ultra‐high
(21.1
wt.%)
nanospheres
(CYMCS).
This
material
exhibits
excellent
volume
expansion
resistance,
achieves
high
reversible
sodium
capacity
up
283
mAh
g
−1
at
density
0.1
A
,
and
maintains
stable
cycling
performance
over
10000
cycles
5
.
Moreover,
previous
research
has
provided
limited
insights
into
specific
mechanisms
behind
low
initial
coulombic
efficiency
(ICE)
observed
in
CYMCS
other
related
porous
materials.
To
address
this,
study
not
only
delves
electrochemical
but
also
provides
comprehensive
analysis
formation
solid
electrolyte
interphase
(SEI)
decomposition
process,
revealing
connections
between
these
processes
their
impact
on
ICE.
Overall,
this
offers
new
synthesis
optimization
applications
valuable
guidance
design
strategies
improve
Nanomaterials,
Год журнала:
2025,
Номер
15(2), С. 128 - 128
Опубликована: Янв. 16, 2025
Zeolitic
imidazolate
framework-8
(ZIF-8)
has
been
extensively
studied
as
a
precursor
for
nitrogen-doped
carbon
(NC)
materials
due
to
its
high
surface
area,
tunable
porosity,
and
adjustable
nitrogen
content.
However,
the
intrinsic
microporous
structure
of
ZIF-8
limits
mass
transport
accessibility
reactants
active
sites,
reducing
effectiveness
in
electrochemical
applications.
In
this
study,
soft
templating
approach
using
triblock
copolymer
was
used
prepare
mesoporous
ZIF-8-derived
NC
(Meso-ZIF-NC)
samples.
The
hierarchical
porous
investigated
by
varying
ratios
Pluronic
F-127,
NaClO4,
toluene.
resulting
Meso-ZIF-NC
exhibited
widespread
pore
size
distribution
with
an
enhanced
mesopore
(2–50
nm)
volume
according
composition
reaction
mixtures.
Pt
nanoparticles
were
uniformly
dispersed
on
form
Pt/Meso-ZIF-NC
catalysts,
which
presented
area
improved
oxygen
reduction
activity.
study
highlights
important
role
doping
enhancing
catalytic
performance,
providing
pathway
advanced
fuel
cell
catalyst
design.
Molecules,
Год журнала:
2024,
Номер
29(18), С. 4331 - 4331
Опубликована: Сен. 12, 2024
Sodium-ion
batteries
(SIBs)
have
been
proposed
as
a
potential
substitute
for
commercial
lithium-ion
due
to
their
excellent
storage
performance
and
cost-effectiveness.
However,
the
substantial
radius
of
sodium
ions,
there
is
an
urgent
need
develop
anode
materials
with
exemplary
electrochemical
characteristics,
thereby
enabling
fabrication
sodium-ion
high
energy
density
rapid
dynamics.
Carbon
are
highly
valued
in
energy-storage
field
diverse
structures,
low
cost,
reliability.
This
review
comprehensively
summarizes
typical
structure;
mechanisms;
current
development
status
various
carbon-based
SIBs,
such
hard
carbon,
soft
graphite,
graphene,
carbon
nanotubes
(CNTs),
porous
materials.
also
provides
overview
future
related
companies
batteries.
Furthermore,
it
offers
summary
outlook
on
challenges
opportunities
associated
design
principles
large-scale
production
high-energy-density
requirements.
avenue
exploring
outstanding
improvement
strategies
materials,
which
can
provide
guidance
application
research.
Abstract
The
unique
beneficial
effects
and
physicochemical
properties
of
mesoporous
carbon
have
led
to
a
wide
range
applications
in
the
environmental,
medical,
pharmaceutical,
cosmetic
food
fields,
etc.
This
article
reviews
recent
advances
sources,
synthesis
methods
application
areas
its
smart
compound
delivery
response.
interaction
mechanisms
determined
from
experimental
results
characterization
analysis
are
discussed.
porous
structure,
large
specific
surface
area
pore
volume,
adjustable
size,
easy
modification
materials
improved
their
ability.
Mesoporous
carbon-based
nanocarriers
been
developed
improve
solubility,
stability,
bioavailability
some
compounds.
as
well
high
encapsulation
rate
drug
loading
capacity
development
nanodelivery
systems
that
release
compounds
via
biointelligent
responses.
In
field
delivery,
nanomaterials
combine
advantages
structures
carbonaceous
compositions
exhibit
over
traditional
food-grade
carriers.
Although
performance
has
achieved
promising
results,
production
process
is
complex,
preparation
requirements
high,
there
lack
clinical
evidence
regarding
potential
nanotoxicity,
which
limits
commercial
application.
delves
into
various
fields
provides
new
ideas
for
transport
active
substances.
Graphical
Chemical Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Bi@TAC
was
synthesized
successfully
by
using
a
tannic-acid-coated
Bi
2
O
3
precursor.
Benefitting
from
the
synergistic
effect
of
nanodiscs
and
carbon
matrix,
delivered
an
impressive
long-term
cycling
performance.
Abstract
Sodium‐ion
batteries
(SIBs)
are
emerging
as
a
potential
alternative
to
traditional
lithium‐ion
due
the
abundant
sodium
resources.
Carbon
anodes,
with
their
stable
structure,
wide
availability,
low
cost,
excellent
conductivity,
and
tunable
morphology
pore
exhibit
outstanding
performance
in
SIBs.
This
review
summarizes
research
progress
of
hard
carbon
anodes
SIBs,
emphasizing
innovative
paths
advanced
performances
achieved
through
multitrack
optimization,
including
dimensional
engineering,
heteroatom
doping,
microstructural
tailoring.
Each
dimension
material—0D,
1D,
2D,
3D—offers
unique
advantages:
0D
materials
ensure
uniform
dispersion,
1D
have
short
Na
+
diffusion
paths,
2D
possess
large
specific
surface
areas,
3D
provide
e
−
/Na
conductive
networks.
Heteroatom
doping
elements
such
N,
S,
P
can
tune
electronic
distribution,
expand
interlayer
spacing
carbon,
induce
Fermi
level
shifts,
thereby
enhancing
storage
capability.
In
addition,
defect
engineering
improves
electrochemical
by
modifying
graphitic
crystal
structure.
Furthermore,
suitable
structure
design,
particularly
closed
structures,
increase
capacity,
minimizes
side
reactions,
suppress
degradation.
future
studies,
optimizing
exploring
co‐doping,
developing
environmentally
friendly,
low‐cost
anode
methods
will
drive
application
high‐performance
long
cycle
life
