Chemistry - A European Journal,
Journal Year:
2023,
Volume and Issue:
29(23)
Published: Jan. 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.
Small Structures,
Journal Year:
2022,
Volume and Issue:
3(12)
Published: Aug. 19, 2022
Rechargeable
aqueous
Zn–CO
2
batteries
show
great
promise
in
meeting
severe
environmental
problems
and
energy
crises
due
to
their
combination
of
CO
utilization
output,
as
well
advantages
high
theoretical
density,
abundant
raw
materials,
safety.
Developing
high‐efficiency
stable
reduction
reaction
(CO
RR)
electrocatalysts
is
critical
importance
for
the
promotion
this
technology.
Atomically
dispersed
metal‐based
catalysts
(ADMCs),
with
extremely
atom‐utilization
efficiency,
tunable
coordination
environments,
superior
intrinsic
catalytic
activity,
are
emerging
promising
candidates
batteries.
Herein,
some
recent
developments
atomically
summarized,
including
transition
metal
non‐transition
sites.
Moreover,
various
synthetic
strategies,
characterization
methods,
relationship
between
active
site
structures
RR
activity/Zn–CO
battery
performance
introduced.
Finally,
challenges
perspectives
also
proposed
future
development
ADMCs
eScience,
Journal Year:
2022,
Volume and Issue:
3(1), P. 100088 - 100088
Published: Dec. 22, 2022
A
robust
three-dimensional
(3D)
interconnected
sulfur
host
and
a
polysulfide-proof
interlayer
are
key
components
in
high-performance
Li–S
batteries.
Herein,
cellulose-based
3D
hierarchical
porous
carbon
(HPC)
two-dimensional
(2D)
lamellar
(LPC)
employed
as
the
interlayer,
respectively,
for
battery.
The
HPC
displays
cross-linked
macroporous
structure,
which
allows
high
loading
restriction
capability
provides
unobstructed
electrolyte
diffusion
channels.
With
stackable
sheet
of
2D
LPC
that
has
large
plane
view
size
is
ultrathin
porous,
LPC-coated
separator
effectively
inhibits
polysulfides.
An
optimized
combination
yields
an
electrode
structure
protects
lithium
anode
against
corrosion
by
polysulfides,
giving
cell
capacity
1339.4
mAh
g−1
stability,
with
decay
rate
0.021%
per
cycle
at
0.2C.
This
work
new
understanding
biomaterials
offers
novel
strategy
to
improve
performance
batteries
practical
applications.
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(20)
Published: April 9, 2023
Abstract
Lithium–sulfur
(Li–S)
batteries
are
receiving
great
attention
owing
to
their
large
theoretical
energy
density,
but
the
shuttle
effect
and
sluggish
kinetic
conversion
of
lithium
polysulfides
(LiPSs)
seriously
restrict
practical
applications.
Herein,
various
metal
single‐atom
catalysts
immobilized
on
nitrogen‐doped
Ti
3
C
2
T
x
(
M
SA/N‐Ti
,
=
Cu,
Co,
Ni,
Mn,
Zn,
In,
Sn,
Pb,
Bi)
successfully
prepared
by
a
neoteric
vacancy‐assisted
strategy,
applied
as
polypropylene
(PP)
separator
coatings
facilitate
fast
redox
adsorption
LiPSs
for
boosting
Li–S
batteries.
Of
particular
note,
among
s,
Cu
/PP
exhibits
amazing
properties,
involving
excellent
rate
performance
(925
mAh
g
−1
at
C),
superb
cycling
stability
over
1000
cycles,
ultra‐high
sulfur
utilization
even
loadings
(7.19
mg
cm
−2
;
an
areal
capacity
5.28
).
X‐ray
absorption
fine
spectroscopy
density
functional
theory
calculations
reveal
that
asymmetrically
coordinated
Cu–N
1
moieties
act
active
sites,
which
possess
higher
binding
larger
electron
cloud
with
than
pristine
facilitating
effectively.
This
work
may
provide
new
insights
into
single
atom‐decorated
ultrathin
2D
materials
enhancing
electrochemical
advanced
storage
conversion.
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
14(2)
Published: Nov. 16, 2023
Abstract
Rechargeable
batteries
that
make
renewable
energy
resources
feasible
for
electrification
technologies
have
been
extensively
investigated.
Their
corresponding
performance
is
strongly
dependent
on
the
structural
characteristics
and
chemical
dynamics
of
internal
electrode
electrolyte
materials
under
operating
conditions.
To
enhance
battery
lifetime,
a
comprehensive
understanding
structure‐dynamics‐performance
correlation
such
different
working
conditions
great
significance.
Fortunately,
in
situ
transmission
electron
microscopy
(TEM)
encompassing
high‐resolution
imaging,
diffraction,
spectroscopic
analysis,
offers
unprecedented
insights
into
nano/atomic
scale
changes
degradation
pathways
rechargeable
operational
Such
are
pivotal
deep‐rooted
reaction
mechanisms
structure‐activity
interplay
within
materials.
This
work,
therefore,
highlights
advances
TEM's
utility
unveiling
dynamic
physical
real‐time
batteries.
Electrochemical
processes
systematically
explored
summarized.
Moreover,
technical
progress,
challenges,
valuable
provided
by
TEM
techniques
addressing
critical
issues
underscored.
The
work
concludes
with
discussion
emerging
research
directions
hold
potential
to
revolutionize
field
near
future.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(37)
Published: May 14, 2023
Abstract
Developing
versatile
and
high
sensitivity
sensors
is
beneficial
for
promoting
flexible
electronic
devices
human‐machine
interactive
systems.
Researchers
are
working
on
the
exploration
of
various
active
sensing
materials
toward
broad
detection,
multifunction,
low‐power
consumption.
Here,
a
ion‐gel
fibrous
membrane
presented
by
electrospinning
technology
utilized
to
construct
capacitive
triboelectric
nanogenerator
(TENG).
The
iontronic
sensor
exhibits
inherently
favorable
repeatability,
which
retains
long‐term
stability
after
5000
cycles.
can
also
detect
clear
pulse
waveform
at
human
wrist
enable
mapping
pressure
distribution
sensory
matrix.
For
TENG,
maximum
peak
power
54.56
µW
be
used
commercial
electronics.
In
addition,
prepared
TENG
array
achieve
interactive,
rapidly
responsive,
accurate
dynamic
monitoring,
broadens
direct
effective
devices.
promising
provide
an
outstanding
approach
physiological
biomechanical
energy
harvesting,
interaction,
self‐powered
monitoring
ACS Energy Letters,
Journal Year:
2023,
Volume and Issue:
8(7), P. 3054 - 3080
Published: June 20, 2023
Lithium–sulfur
(Li–S)
batteries
suffer
from
rampant
polysulfide
shuttling
and
sluggish
reaction
kinetics,
which
have
curtailed
sulfur
utilization
deteriorated
their
actual
performance.
To
circumvent
these
detrimental
issues,
electrolyte
engineering
is
a
reliable
strategy
to
control
behavior
facilitate
kinetics.
However,
the
electrolyte–polysulfide
nexus
remains
elusive,
design
principle
far
clear,
especially
for
pragmatic
application.
In
this
Review,
key
approaches
obtain
kinetically
favorable
Li–S
battery
electrolytes
are
elucidated
three
perspectives:
(i)
high-donor-number
components,
(ii)
homogeneous
catalysts,
(iii)
endogenous
co-mediators.
Particular
attention
paid
probing
underlying
working
mechanism.
addition,
kinetics
electrochemical
performances
systematically
studied,
highlighting
strategic
effectiveness
of
in
lean-electrolyte
conditions.
This
Review
aims
offer
meaningful
guidance
rational
enhance
performance
advance
commercialization
batteries.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: Feb. 5, 2024
Developing
high-performance
aqueous
Zn-ion
batteries
from
sustainable
biomass
becomes
increasingly
vital
for
large-scale
energy
storage
in
the
foreseeable
future.
Therefore,
γ-MnO
