Small Structures,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 30, 2025
When
coupled
with
renewable
energy
sources,
alkaline
electrolysis
(AEL)
is
a
clean
technology
to
produce
hydrogen.
The
conventional
electrodes
that
have
been
established
as
the
commercial
standard
for
AEL
are
perforated
nickel
plates,
which
low
surface
area
and
high
mass
loads
of
active
material.
use
Ni
has
associated
adsorption
protons
their
recombination
into
H
2
molecules,
assisting
enabling
hydrogen
evolution
reactions.
Due
rising
price,
there
demand
less
expensive
electrode
materials
identical,
or
better,
performance.
Thus,
this
work
explores
new
alternative
combines
cheaper
also
electroactive
metal,
iron.
For
purpose,
highly
porous
bimetallic
nanofoams
produced
through
dynamic
bubble
template.
NiFe
different
compositions
characterized
by
scanning
electron
microscopy,
energy‐dispersive
spectroscopy,
linear
sweep
voltammetry,
chronopotentiometry
analysis.
results
allow
obtaining
key
parameters
essential
optimization
electrode's
response
considering
overpotentials,
Tafel
slopes,
other
electrochemically
relevant
parameters.
Environmental Chemistry Letters,
Год журнала:
2024,
Номер
22(2), С. 505 - 560
Опубликована: Фев. 6, 2024
Abstract
Membrane
filtration
is
a
major
process
used
in
the
energy,
gas
separation,
and
water
treatment
sectors,
yet
efficiency
of
current
membranes
limited.
Here,
we
review
use
machine
learning
to
improve
membrane
efficiency,
with
emphasis
on
reverse
osmosis,
nanofiltration,
pervaporation,
removal
pollutants,
pathogens
nutrients,
separation
carbon
dioxide,
oxygen
hydrogen,
fuel
cells,
biodiesel,
biogas
purification.
We
found
that
brings
substantial
improvements
performance
leading
specialized
remarkable
potential
for
various
applications.
This
integration
offers
versatile
solutions
crucial
addressing
global
challenges
sustainable
development
advancing
environmental
goals.
techniques
capture
purification
industrial
gases,
aiding
reduction
dioxide
emissions.
Environmental Chemistry Letters,
Год журнала:
2024,
Номер
22(4), С. 1703 - 1740
Опубликована: Май 16, 2024
Abstract
Hydrogen
is
viewed
as
the
future
carbon–neutral
fuel,
yet
hydrogen
storage
a
key
issue
for
developing
economy
because
current
techniques
are
expensive
and
potentially
unsafe
due
to
pressures
reaching
up
700
bar.
As
consequence,
research
has
recently
designed
advanced
sorbents,
such
metal–organic
frameworks,
covalent
organic
porous
carbon-based
adsorbents,
zeolite,
composites,
safer
storage.
Here,
we
review
with
focus
on
sources
production,
machine
learning.
Carbon-based
sorbents
include
graphene,
fullerene,
carbon
nanotubes
activated
carbon.
We
observed
that
capacities
reach
10
wt.%
6
3–5
adsorbents.
High-entropy
alloys
composites
exhibit
improved
stability
uptake.
Machine
learning
allowed
predicting
efficient
materials.
Abstract
The
discovery
of
the
heterostructures
that
is
combining
two
materials
with
different
properties
has
brought
new
opportunities
for
development
lithium
sulfur
batteries
(LSBs).
Here,
C
3
N
4
‐CoSe
2
composite
elaborately
designed
and
used
as
a
functional
coating
on
LSBs
separator.
abundant
chemisorption
sites
form
chemical
bonding
polysulfides,
provides
suitable
adsorption
energy
polysulfides
(LiPSs).
More
importantly,
spontaneously
formed
internal
electric
field
accelerates
charge
flow
in
interface,
thus
facilitating
transport
LiPSs
electrons
promoting
bidirectional
conversion
sulfur.
Meanwhile,
lithiophilic
sample
catalytic
activity
can
effectively
regulate
uniform
distribution
when
Li
+
penetrates
separator,
avoiding
formation
dendrites
(Li)
metal
anode.
Therefore,
based
functionalized
membranes
exhibit
stable
long
cycle
life
at
1C
(with
capacity
decay
0.0819%
per
cycle)
large
areal
10.30
mAh
cm
−2
0.1C
(sulfur
load:
8.26
mg
,
lean
electrolyte
5.4
µL
s
−1
).
Even
under
high‐temperature
conditions
60
°C,
retention
rate
81.8%
after
100
cycles
1
current
density
maintained.
