Sensors,
Journal Year:
2024,
Volume and Issue:
24(16), P. 5427 - 5427
Published: Aug. 22, 2024
In
this
paper,
we
present
a
cost-effective
system
for
monitoring
and
controlling
alkaline
electrolyzers,
intending
to
improve
hydrogen
gas
production
on
laboratory
scale.
Our
work
includes
two
main
innovations.
Firstly,
suggest
an
approach
calibrate
standard
air
flow
meter
accurately
measure
the
of
hydrogen-rich
from
improving
measurement
accuracy
while
keeping
costs
low.
Secondly,
introduce
unique
cascade
control
method
manage
in
electrolyzer,
ensuring
precise
over
rates.
By
combining
affordable,
energy-efficient
devices
with
PI
system,
achieve
efficient
through
electrolysis,
replacing
manual
approaches.
Experimental
results
confirm
effectiveness
our
method,
demonstrating
stable
operation
minimal
errors.
These
provide
foundation
further
research
into
strategies
enhance
performance
electrolytic
cells.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: May 9, 2024
Abstract
Solid
polymer
electrolytes
exhibit
enhanced
Li
+
conductivity
when
plasticized
with
highly
dielectric
solvents
such
as
N,N-dimethylformamide
(DMF).
However,
the
application
of
DMF-containing
in
solid-state
batteries
is
hindered
by
poor
cycle
life
caused
continuous
DMF
degradation
at
anode
surface
and
resulting
unstable
solid-electrolyte
interphase.
Here
we
report
a
composite
electrolyte
rationally
designed
Hofmann-DMF
coordination
complex
to
address
this
issue.
engineered
on
Hofmann
frameworks
tethered
ligands
construct
locally
DMF-rich
interface
which
promotes
conduction
through
ligand-assisted
transport
mechanism.
A
high
ionic
6.5
×
10
−4
S
cm
−1
achieved
room
temperature.
We
demonstrate
that
effectively
reduces
free
shuttling
subsequent
decomposition
DMF.
The
solvent-tethered
cycles
stably
for
over
6000
h
0.1
mA
−2
|
|Li
symmetric
cell.
When
paired
sulfurized
polyacrylonitrile
cathodes,
full
cell
exhibits
prolonged
1000
1
C.
This
work
will
facilitate
development
practical
polymer-based
long
life.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(6), P. 7364 - 7373
Published: Feb. 2, 2024
Catalysis
has
played
a
decisive
role
in
the
development
of
unique
chemical
reactions
to
produce
important
chemicals.
However,
conventional
stepwise
synthetic
routes
that
rely
on
individual
catalysts
promote
each
step
often
suffer
from
ponderous
processes
for
isolation
intermediates
result
massive
material
losses
and
large
economic
expenditures.
In
addition,
traditional
powder
forms
these
poor
processability
recoverability.
Herein,
we
designed
prepared
hierarchical
metal–organic
framework
(MOF)
composite
monolithic
catalyst
IL-Au@UiO-66-NH2/CMC
contains
integrated
acid
(Zr4+),
base
(ionic
liquid
(IL)),
metal
sites
(Au
nanoparticles
(NPs))
one-pot
preparation
cyclic
carbonates
styrene
derivatives
CO2.
Highly
dispersed
Au
NPs,
IL
1-aminoethyl-3-methylimidazolium
bromide
([C2NH2
MIM]
[Br]),
MOF-positioned
Lewis
within
this
aerogel
are
separately
responsible
catalyzing
selective
epoxidation
subsequent
cycloaddition
reaction
CO2
with
intermediate
oxides.
Importantly,
inclusion
imidazolium-based
effectively
modulates
size
microenvironment
NPs
via
electrostatic
protection,
leading
stability
its
oxidation
styrene.
Benefiting
rapid
mass
transfer
high
exposure
active
pore-rich
nanostructure,
promotes
conversion
(90.5%)
selectivity
(80.5%)
carbonate
(SC)
formation
process,
performance
level
far
exceeds
those
related
containing
only
or
(the
SC
<
42%).
Furthermore,
can
be
readily
separated
recycled
at
least
five
times
without
remarkable
loss
activity
selectivity.
The
controllable
integration
various
components
MOF
herein
should
serve
as
foundation
design
multifunctional
other
valuable
tandem
processes.
Journal of Colloid and Interface Science,
Journal Year:
2024,
Volume and Issue:
665, P. 286 - 298
Published: March 20, 2024
Tailoring
porous
host
materials,
as
an
effective
strategy
for
storing
sulfur
and
restraining
the
shuttling
of
soluble
polysulfides
in
electrolyte,
is
crucial
design
high-performance
lithium-sulfur
(Li-S)
batteries.
However,
widely
studied
conductive
hosts
such
mesoporous
carbon,
how
aspect
ratio
affects
confining
ability
to
polysulfides,
ion
diffusion
well
performances
Li-S
batteries
has
been
rarely
studied.
Herein,
ordered
carbon
(OMC)
chosen
a
proof-of-concept
prototype
host,
its
tuned
from
over
∼
2
down
below
1.2
by
using
silica
hard
templates
with
variable
length/width
scales.
The
correlation
between
OMCs
electrochemical
corresponding
sulfur-carbon
cathodes
are
systematically
combined
measurements
microscopic
characterizations.
Moreover,
evolution
species
at
different
discharge
states
scrutinized
small-angle
X-ray
scattering.
This
study
gives
insight
into
effects
on
battery
cathodes,
providing
guidelines
designing
materials
high-energy
cathodes.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(41)
Published: July 22, 2024
The
lack
of
stable
solid-state
electrolytes
(SSEs)
with
high-ionic
conductivity
and
the
rational
design
electrode/electrolyte
interfaces
remains
challenging
for
lithium
batteries.
Here,
first
time,
a
high-performance
lithium-oxygen
(Li-O
Chemistry - A European Journal,
Journal Year:
2024,
Volume and Issue:
30(34)
Published: April 19, 2024
The
selective
hydrogenation
of
furfural
(FFA)
to
furfuryl
alcohol
(FA)
is
regarded
as
attractive
transformation
achieve
the
sustainable
synthesis
value-added
chemicals
from
biomass
resources.
However,
conventional
supported
catalysts
are
significantly
restricted
by
their
narrow
pore
size,
ununiform
dispersion
and
easy
leaching
or
aggregation
catalytic
sites.
Herein,
we
designed
hollow
UiO-66-NH
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 3, 2024
Abstract
Solid
polymer
electrolytes
(SPEs)
offer
inherent
advantages
for
battery
applications,
such
as
high
safety
and
excellent
processability,
but
their
practical
use
is
limited
by
challenges
like
low
ionic
conductivity,
subpar
mechanical
properties,
instability
of
the
electrode/electrolyte
interface.
Here,
novel
SPEs
are
developed
embedding
2D
MXenes
decorated
at
surface
with
methoxypolyethylene
glycol
chains
into
poly(vinylidene
fluoride)‐hexafluoropropylene
matrices,
enhanced
succinonitrile
a
plasticizer.
This
innovative
design
improves
compatibility
modified
MXene
in
and,
together
synergistic
effects
succinonitrile,
promotes
dissociation
lithium
salt.
The
SPE
achieves
conductivity
1.49
×
10
−4
S
cm
−1
30
°C,
Li‐ion
transference
number
0.59.
These
results
supported
comprehensive
experimental
characterization,
COMSOL
simulations,
DFT
calculations.
enables
stable
reversible
Li
plating/stripping
over
2100
h
Li/Li
symmetric
cells,
while
fabricated
Li/LiFePO
4
full
cells
deliver
notable
capacity
135.4
mAh
g
an
average
Coulombic
efficiency
98.9%
after
100
cycles
0.2
C.
Furthermore,
Li/LiNi
0.6
Co
Mn
O
2
also
demonstrate
140.5
200
0.5
C,
showcasing
impressive
retention
rate
99.6%.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 16, 2025
Abstract
Solid
composite
electrolytes
(SCEs)
composed
of
functional
fillers
and
solid
polymer
(SPEs)
can
overcome
some
shortcomings
single‐phase
combine
advantages
each
component,
are
considered
as
high‐performance
solid‐state
(SSEs)
candidates
for
assembling
lithium
metal
batteries
(SSLMBs)
with
high
safety
energy
density.
In
recent
years,
due
to
designability
metal–organic
frameworks
(MOFs),
MOFs/polymer
(MPCEs)
have
become
a
highly
promising
novel
type
SCEs.
Based
on
the
above
content,
this
article
first
describes
composition
mechanism
action
MPCEs,
followed
by
discussion
typical
fabrication
methods
MPCEs.
addition,
mechanisms
unmodified
neat
MOFs
in
improving
performance
SSEs
enhancing
interface
stability
presented
detail,
focus
design
strategies
their
applications
including
dimensional
design,
ligand
IL@MOFs
hybrid
design.
Finally,
thorough
analysis
is
conducted
current
challenges
faced
corresponding
future
development
directions
proposed.
This
review
presents
comprehensive,
systematic,
easily
understandable
application
different
designs
providing
new
perspective
researchers
study
SSEs.
