Nano Letters,
Journal Year:
2024,
Volume and Issue:
24(7), P. 2157 - 2164
Published: Feb. 6, 2024
Carbon
support
is
essential
for
electrocatalysis,
but
limitations
remain,
as
carbon
corrosion
can
lead
to
electrocatalyst
degradation
and
affect
the
long-term
durability
of
electrocatalysts.
Here,
we
studied
dynamics
nanotubes
(CNTs)
Vulcan
(VC)
together
with
platinum
(Pt)
nanoparticles
in
real
time
by
liquid
cell
(LC)
transmission
electron
microscopy
(TEM).
The
results
showed
that
CNTs
a
high
degree
graphitization
exhibited
higher
resistance
compared
VC.
Furthermore,
observed
main
path
Pt
Pt/CNTs
was
ripening,
while
Pt/VC,
it
aggregation
coalescence,
which
dominated
interactions
between
different
hybridization
supports.
Finally,
performed
an
ex
situ
CV
stability
test
confirm
conclusions
obtained
from
experiments.
This
work
provides
deep
insights
into
mechanism
carbon-supported
electrocatalysts
optimize
design
durability.
Small Methods,
Journal Year:
2023,
Volume and Issue:
7(11)
Published: Aug. 4, 2023
Porous
carbon
is
the
most
promising
cathode
material
for
Zn-ion
hybrid
capacitors
(ZIHCs),
but
limited
by
insufficient
active
adsorption
sites
and
slow
ion
diffusion
kinetics
during
charge
storage.
Herein,
a
pore
construction-pore
expansion
strategy
synthesizing
multi-channel
hollow
nanofibers
(MCHCNF)
proposed,
in
which
sacrificial
template-induced
structure
eliminates
barrier
enhancing
kinetics,
generated
ultrahigh
surface
area
high-density
defective
structures
effectively
increase
quantity
of
Additionally,
graphene-like
shell
formed
on
nanofiber
facilitates
fast
electron
transport,
highly
matchable
size
MCHCNF
with
electrolyte-ions
favors
accommodation
carriers.
These
advantages
lead
to
optimized
ZIHCs
exhibit
high
capacity
(191.4
mAh
g
Materials Advances,
Journal Year:
2023,
Volume and Issue:
4(3), P. 835 - 867
Published: Jan. 1, 2023
This
review
covers
recent
advances
in
understanding,
designing,
and
exploring
the
defect
carbon
toward
energy-related
applications,
with
aim
of
referencing
guiding
large-scale
diverse
applications
defect-rich
materials.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(30)
Published: April 22, 2024
Abstract
Carbonaceous
materials
are
regarded
as
one
of
the
most
promising
anodes
for
potassium‐ion
batteries
(PIBs),
but
their
rate
capabilities
largely
limited
by
slow
solid‐state
potassium
diffusion
kinetics
inside
anode
and
sluggish
interfacial
ion
transfer
process.
Herein,
high‐rate
high‐capacity
PIBs
demonstrated
facile
topological
defect‐regulation
microstructure
carbon
anodes.
The
lattice
as‐obtained
porous
nanosheets
(CNSs)
with
abundant
defects
(TDPCNSs)
holds
relatively
high
adsorption
energy
yet
low
migration
barrier,
thereby
enabling
efficient
storage
graphitic
layers.
Moreover,
can
induce
preferential
decomposition
anions,
leading
to
formation
conductive
solid
electrolyte
interphase
(SEI)
film
decreased
de‐solvation
barrier.
Additionally,
dominant
sp
2
‐hybridized
conjugated
skeleton
TDPCNSs
enables
electrical
conductivity
(39.4
S
cm
−1
)
potential.
As
a
result,
as‐constructed
demonstrates
capacity
(504
mA
h
g
at
0.1
A
),
remarkable
capability
(118
40
well
long‐term
cycling
stability.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(24), P. 12434 - 12455
Published: Jan. 1, 2023
The
design
strategies
and
underlying
mechanisms
of
versatile
carbon
superstructures
for
energy
storage
are
reviewed.
Current
challenges
development
roadmaps
proposed
to
spur
the
further
exploration
superstructures.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(46)
Published: July 8, 2023
Abstract
Oxygen‐containing
functional
groups
(OFGs)
grafted
by
carbon
materials
surface
can
serve
as
active
sites
to
reversibly
store
potassium
and
simultaneously
contribute
forming
a
stable
solid‐electrolyte
interphase
layer,
leading
increased
capacity
cycling
stability.
However,
the
excessive
OFGs
will
damage
conductivity
hence
causes
increase
in
electron
transfer
resistance,
easily
resulting
poor
rate.
Herein,
it
is
theoretically
demonstrated
that
embedded
metallic
Co
particles
synergize
with
C‐O‐C
moieties
accelerate
K‐ion
adsorption
(△
E
=
−1.62
eV)
regulate
electronic
structure,
ensuring
high
In
view
of
this,
O‐doped
implanted
well
established,
found
pyrolysis
temperature
effectively
content
proportion.
Various
characterizations
unveil
introduced
species
not
only
evidently
promote
capability
K‐ion,
but
catalyze
generation
graphitic
carbon.
Benefiting
from
these
merits
(e.g.,
enhanced
ability
conductivity),
sample
optimal
proportion
presents
254.7
mAh
g
−1
an
excellent
rate
(202.9
at
2
A
).
The
unique
design
route
makes
fast
K‐storage
anode
possible.
