Journal of Water Process Engineering,
Год журнала:
2024,
Номер
63, С. 105561 - 105561
Опубликована: Июнь 1, 2024
Pressure
retarded
osmosis
(PRO)
is
a
process
that
allow
to
generate
energy
from
osmotic
gradient.
This
uses
selective
membranes
in
order
produce
electrical
through
hydraulic
turbine.
PRO
can
be
used
as
renewable
technology
where
water
resources
are
inexhaustible.
has
the
advantage
of
knowing
when
and
how
much
will
produced.
Unfortunately
at
moment
there
certain
limiting
factors
concerning
membrane
module
characteristics
have
prevented
fully
exploited
full-scale.
study
aims
assess
impact
hypersaline
draw
solutions
(60–180
g
L−1),
such
structural
parameter,
surface
permeability
coefficients
on
net
generated
by
single-staged
full-scale
system
with
up
8
spiral
wound
modules
(SWMMs)
series
pressure
vessel.
To
carry
out
this
study,
existing
lab-scale
were
scaled
inches
SWMM.
The
results
showed
change
optimal
operating
parameters
solution
concentration.
concluded
would
viable
an
point
view
if
manufactured
industrial
scale
laboratory
scale.
Abstract
The
generation
of
green
hydrogen
by
water
splitting
is
identified
as
a
key
strategic
energy
technology,
and
proton
exchange
membrane
electrolysis
(PEMWE)
one
the
desirable
technologies
for
converting
renewable
sources
into
hydrogen.
However,
harsh
anode
environment
PEMWE
oxygen
evolution
reaction
(OER)
involving
four‐electron
transfer
result
in
large
overpotential,
which
limits
overall
efficiency
production,
thus
efficient
electrocatalysts
are
needed
to
overcome
high
overpotential
slow
kinetic
process.
In
recent
years,
noble
metal‐based
(e.g.,
Ru/Ir‐based
metal/oxide
electrocatalysts)
have
received
much
attention
due
their
unique
catalytic
properties,
already
become
dominant
acidic
OER
process
applied
commercial
devices.
these
still
face
thorny
problem
conflicting
performance
cost.
this
review,
first,
metal
briefly
classified
according
forms
existence,
mechanisms
outlined.
Then,
focus
on
summarizing
improvement
strategies
with
respect
activity
stability
over
years.
Finally,
challenges
development
prospects
discussed.
Solar-driven
interfacial
evaporation
(SDIE)
has
emerged
as
a
promising
technology
for
addressing
global
water
scarcity
by
utilizing
solar-thermal
conversion
and
at
the
air/material/water
interface.
The
exceptional
performance
of
these
systems
attracted
significant
interest;
it
is
imperative
to
establish
rigorous
scientific
standards
evaluating
effectiveness,
optimizing
system
design,
ensuring
efficient
practical
applications.
In
this
Review,
we
propose
consensus
criteria
accurately
assessing
guiding
future
advancements.
We
then
explore
fundamental
mechanisms
driving
synergy,
emphasizing
how
material
compositions,
microscopic
hierarchical
structures,
macroscopic
three-dimensional
spatial
architecture
designs
enhance
solar
absorption
photothermal
conversion;
balance
heat
confinement
with
pathway
optimization;
manage
salt
resistance;
regulate
enthalpy
during
vaporization.
These
matched
coordination
strategies
are
crucial
maximizing
target
SDIE
efficiency.
Additionally,
investigate
applications
technologies,
focusing
on
cutting-edge
progress
versatile
purification,
combined
atmospheric
harvesting,
collection,
electric
generation,
deicing.
Finally,
highlight
challenges
exciting
opportunities
advancing
research,
efforts
integrate
principles,
system-level
collaboration,
application-driven
approaches
boost
sustainable
highly
energy
technologies.
By
linking
evaluation
optimization
influencing
factors,
offer
comprehensive
overview
field
outlook
that
promotes
clean
production
synergistic
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(4)
Опубликована: Окт. 12, 2023
Abstract
Harvesting
clean
and
renewable
osmotic
energy
through
reverse
electrodialysis
(RED)
technology
offers
a
promising
solution
to
address
crisis
problems.
The
development
of
nanochannel
membranes
constructed
from
diverse
nanomaterials
plays
crucial
role
in
enabling
efficient
conversion.
In
this
review,
first
an
overview
the
mechanism
RED
process
is
provided
physicochemical
properties
nanomaterials,
covering
0D,
1D,
2D
conversion
performances
membranes.
Then,
relationship
between
chemical
structural
features
specifically
highlighted,
including
surface
charge
property
geometric
structure,
efficiency.
Additionally,
introduction
external
stimuli,
such
as
light,
temperature,
pH,
pressure,
changes
electrolyte
environments,
are
also
discussed.
Finally,
research
directions
future
challenges
field
harvesting
using
based
on
presented.
focus
refining
mechanism,
well
optimizing
structure
design.
ACS Energy Letters,
Год журнала:
2024,
Номер
9(5), С. 2092 - 2100
Опубликована: Апрель 24, 2024
Methods
of
reducing
nanofluids'
internal
resistance
by
mixing
conductive
nanomaterials
will
negatively
affect
the
nanochannel
structures
and
ion
transmissions.
Herein,
a
layered-structured
nanofluidic
membrane
that
achieves
transport
in
cellulose
nanochannels
realizes
electron
external
polyaniline
network
is
developed.
Results
show
ionic
conductivity
resistivity
layered
at
low
salt
concentrations
are
1.57
times
higher
0.99
lower
than
those
blend
membrane,
demonstrating
positive
contribution
decoupled
electronic
pathways.
Furthermore,
attained
an
enhanced
output
power
density
11.7
W
m–2
maintained
performance
up
to
10.9
after
16
days
operation
under
neutral
50-fold
salinity
concentration
gradient,
which
commercial
system
(5.0
m–2).
Overall,
this
research
expands
materials
for
osmotic
energy–harvesting
systems
based
on
design
decoupling
paths
biomass
materials.
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(18), С. 6435 - 6481
Опубликована: Янв. 1, 2024
Active
sites
play
a
pivotal
role
in
photo/electrocatalysis,
particularly
the
transition
from
fossil
fuels
to
clean,
efficient
and
renewable
energy
sources.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 8, 2024
Abstract
Osmotic
energy
conversion
based
on
reverse
electrodialysis
(RED)
technology
has
attracted
intense
attention.
As
the
key
component,
ion‐selective
membranes
should
meet
basic
requirements
of
high
power
density,
mechanical
strength,
and
easy
preparation.
Polyelectrolyte
hydrogel
materials
are
good
candidates,
due
to
their
charge
density.
However,
severe
swelling
effect
decreases
ion
selectivity
strength.
To
solve
this
problem,
an
anti‐swelling
3D
nanohydrogel
is
demonstrated,
which
in
situ
polymerized
nanoporous
polyimide
(PI)
membrane,
exhibiting
ultrahigh
density
osmotic
conversion.
Because
nano‐confinement
PI
matrix,
ratio
37.5%
from
593.2%
bulk
hydrogel.
Meanwhile,
hybrid
membrane
exhibits
excellent
strength
(≈89.5
MPa).
Under
a
500‐fold
concentration
gradient,
generates
up
48.5
W
m
−2
,
one
order
magnitude
higher
than
that
The
introduces
new
concept
designing
separation
for
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(32)
Опубликована: Май 13, 2024
Ion-selective
nanochannel
membranes
assembled
from
two-dimensional
(2D)
nanosheets
hold
immense
promise
for
power
conversion
using
salinity
gradient.
However,
they
face
challenges
stemming
insufficient
surface
charge
density,
which
impairs
both
permselectivity
and
durability.
Herein,
we
present
a
novel
vacancy-engineered,
oxygen-deficient
NiCo
layered
double
hydroxide
(NiCoLDH)/cellulose
nanofibers-wrapped
carbon
nanotubes
(VOLDH/CNF-CNT)
composite
membrane.
This
membrane,
featuring
abundant
angstrom-scale,
cation-selective
nanochannels,
is
designed
fabricated
through
synergistic
combination
of
vacancy
engineering
interfacial
super-assembly.
The
membrane
shows
interlayer
free-spacing
~3.62
Å,
validates
the
size
exclusion
selectivity.
strategy,
validated
by
DFT
calculations
experimental
data,
improves
hydrophilicity
leading
to
strong
interaction
with
K
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июнь 21, 2024
Abstract
Generating
electricity
from
salinity‐gradient
waters
with
nanofluidic
structures
is
a
promising
approach
for
achieving
zero‐emission
energy
goals
and
addressing
escalating
crises.
However,
the
ingenious
design
development
of
biomass
membranes
that
satisfy
requirements
sustainability,
low‐cost,
long‐term
stability,
high
output
power
density
crucial
challenge.
This
work
reports
two‐dimensional
(2D)
hierarchical‐structured
chitin
nanosheets
(2D
H‐CNS)
abundant
micro‐/nano‐pore
through
chemical
modification,
acid
vapor
treatment,
ultrasound‐assisted
exfoliation.
The
results
showed
surface
charge
modification
not
only
promotes
loosening
controllable
exfoliation
dense
structure
into
ultra‐thin
2D
H‐CNS
(1.34
nm)
but
also
increases
porosity
enhances
ion
transport
flux
selectivity
nanosheets.
Furthermore,
experimental
simulation
confirm
hierarchical
in
nanosheet‐assembled
(2D‐HM)
substantially
performance,
an
18.5
times
improvement
conductance
over
(2D‐DM).
2D‐HM
embedded
harvesting
system
achieved
2.59
W
m
−2
,
2.51
2D‐DM.
study
all‐biomass
materials
high‐performance
osmotic
harvesting.
Nano Letters,
Год журнала:
2024,
Номер
24(37), С. 11756 - 11762
Опубликована: Сен. 5, 2024
Developing
a
nanofluidic
membrane
with
simultaneously
enhanced
ion
selectivity
and
permeability
for
high-performance
osmotic
energy
conversion
has
largely
been
unexplored.
Here,
we
tackle
this
issue
by
the
confinement
of
highly
space-charged
hydrogels
within
an
orderedly
aligned
nanochannel
array
membrane.
The
nanoconfinement
effect
endows
hydrogel-based
excellent
antiswelling
property.
Furthermore,
experimental
simulation
results
demonstrate
that
such
nanoconfined
hydrogel
exhibits
massively
cation
transport
properties.
Consequently,
amazingly
high
power
density
up
to
∼52.1
W/m
