Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 2, 2024
Abstract
Thermoelectric
generators
(TEGs)
based
on
thermogalvanic
cells
can
convert
low‐temperature
waste
heat
into
electricity.
Organic
redox
couples
are
well‐suited
for
wearable
devices
due
to
their
nontoxicity
and
the
potential
enhance
ionic
Seebeck
coefficient
through
functional‐group
modifications.
Pyrazine‐based
organic
with
different
functional
groups
is
comparatively
analyzed
cyclic
voltammetry
under
varying
temperatures.
The
results
reveal
substantial
differences
in
entropy
changes
temperature
highlight
2,5‐pyrazinedicarboxylic
acid
dihydrate
(PDCA)
as
optimal
candidate.
How
of
pyrazine
compounds
impact
examined,
by
calculating
electrostatic
density
theory.
To
evaluate
thermoelectric
properties,
PDCA
integrated
concentrations
a
double‐network
hydrogel
comprising
poly(vinyl
alcohol)
polyacrylamide.
resulting
champion
device
exhibits
an
impressive
(
S
i
)
2.99
mV
K
−1
,
thermal
conductivities
≈67.6
µS
cm
≈0.49
W
m
respectively.
Finally,
TEG
constructed
connecting
36
pieces
20
×
10
−3
PDCA‐soaked
series.
It
achieves
maximum
power
output
≈0.28
µW
gradient
28.3
°C
small
light‐emitting
diode.
These
findings
significant
TEGs
devices.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 19, 2025
Abstract
With
the
increasing
demand
for
fresh‐water
and
electricity
in
modern
society,
various
technologies
are
being
explored
to
obtain
electricity.
Due
advances
materials
science,
solar‐driven
interfacial
evaporation
(SDIE)
systems
have
attracted
widespread
attention
because
they
require
only
solar
energy,
possess
a
high
rate
little
pollution.
The
researchers
combined
energy
harvesting
measures
into
system
output
electricity,
further
improving
utilization.
However,
more
in‐depth
research
review
remain
on
using
SDIE
efficient
water‐electricity
cogeneration.
Therefore,
mechanisms
of
different
photothermal
that
utilize
produce
thermal
first
summarized
this
paper.
Subsequently,
mechanism
application
thermal,
mechanical,
chemical,
electrical
power
cogeneration
discussed.
Concurrently,
vital
mathematical
equations
widely
used
simulation
methods
performance
evaluation
practical
applications
presented.
design
operation
based
analyzed
summarized.
Based
understanding
these
aspects,
future
development
direction
is
proposed
address
problems
faced
basic
applications.
Chemical Science,
Journal Year:
2024,
Volume and Issue:
15(35), P. 14122 - 14153
Published: Jan. 1, 2024
Converting
waste
heat
from
solar
radiation
and
industrial
processes
into
useable
electricity
remains
a
challenge
due
to
limitations
of
traditional
thermoelectrics.
Ionic
thermoelectric
(i-TE)
materials
offer
compelling
alternative
thermoelectrics
their
excellent
ionic
thermopower,
low
thermal
conductivity,
abundant
material
options.
This
review
categorizes
i-TE
thermally
diffusive
thermogalvanic
types,
with
an
emphasis
on
the
former
its
superior
thermopower.
also
highlights
for
creating
supercapacitors
(ITESCs)
that
can
generate
significantly
higher
voltages
low-grade
sources
compared
conventional
technologies.
Additionally,
it
explores
cells
combined
devices,
discussing
key
optimization
parameters
theoretical
modeling
approaches
maximizing
device
performance.
Future
directions
aim
enhance
performance
address
energy
density
challenges
flexible
wearable
applications.
Herein,
cutting-edge
are
comprehensively
outlined,
empowering
researchers
develop
next-generation
harvesting
technologies
more
sustainable
future.
ACS Energy Letters,
Journal Year:
2024,
Volume and Issue:
9(5), P. 2240 - 2247
Published: April 17, 2024
Tapping
on
waste
heat
for
green
electricity
is
a
welcomed
goal,
especially
in
an
energy-scarce
era.
For
more
than
200
years,
the
optimization
of
thermoelectric
modules
has
been
through
either
materials
efficiency
or
device
topology
(fill
factor,
aspect
ratio,
etc.).
Now,
there
pressing
need
re-examination
its
design
higher
power
performance
modules.
Specifically,
have
recent
reports
potential
leg
geometries
increased
output
power,
but
progress
hampered
by
current
fabrication
methods.
In
this
Perspective,
we
offer
fresh
take
how
lattice
architectural
legs
are
cost-effective
strategy
that
can
drastically
improve
output.
We
will
discuss
extent
to
which
lightweight
and
trade-offs
with
mechanical
conclude
strategies
realize
them
industrial
applications.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 14, 2024
Abstract
Low‐temperature
differential
evaporation
constitutes
a
promising
direction
for
energy‐saving
desalination.
Herein,
novel
Janus
interfacial
structure
with
well‐ordered
micro/nanopores
is
developed.
Fabricated
can
weak
the
water
intermolecular
forces
and
pump
to
hydrophilic–hydrophobic
junction.
Within
nanochannels,
increased
curvature
of
meniscus
increases
ratio
thin
layers,
thereby
enhancing
microscale
heat
transfer
at
heated
walls;
in
addition,
smaller
nanopores
limit
development
vortices
liquid–gas
interface
prevent
back
mixing
intermediate
interface,
which
possess
nanoscale
effect
on
intensifying
evaporation.
These
effects
are
validated
by
theoretical
experimental
studies.
Optimized
(20
nm)
95°/25°
exhibits
fluxes
up
2.4
kg
m
−2
h
−1
45
°C
(feed
side)/25
(permeate
side,
ambient
pressure),
as
enthalpy
only
30%
that
direct
The
unique
simultaneously
inhibits
salt
accumulation
achieve
self‐cleaning,
maintaining
steady
performance
during
480
continuous
desalination
50
cycles
batch
operation.
This
work
highlights
structural
design
strategy
separation
materials
specific
micro/nanoscopic
topologies
high
thermally
driven
applications.
