A novel cascade control of PEMFC: Regulation of stack voltage and air breathing subsystem
International Journal of Hydrogen Energy,
Год журнала:
2025,
Номер
102, С. 1530 - 1545
Опубликована: Янв. 20, 2025
Язык: Английский
Carbon-Supported Pt-SiO2 Catalysts for Oxygen Reduction Reaction in Low-Temperature Range: Rotating Disk Electrode Study
Hydrogen,
Год журнала:
2025,
Номер
6(1), С. 5 - 5
Опубликована: Янв. 21, 2025
The
activities
of
Pt
electrocatalysts
modified
with
a
prepared
silica
powder
(with
SiO2
contents
3
and
7
wt%)
in
the
oxygen
reduction
reaction
temperature
range
from
0
°C
to
50
were
investigated
by
rotating
disk
electrode
technique
evaluate
their
efficiency
process
cold
start
proton-exchange
membrane
fuel
cell
(PEMFC).
An
increase
mass
activity
Pt-SiO2/C
electrocatalyst
comparison
Pt/C
was
observed,
which
can
be
attributed
more
dispersed
distribution
platinum
particles
on
support
surface
decrease
size.
values
silica-modified
approximately
two-fold
higher
at
1
four-fold
elevated
temperatures
up
Pt/C,
makes
application
PEMFCs
low
temperatures,
including
start,
promising
avenue
for
further
investigation.
Язык: Английский
Towards More Efficient PEM Fuel Cells Through Advanced Thermal Management: From Mechanisms to Applications
Sustainability,
Год журнала:
2025,
Номер
17(3), С. 943 - 943
Опубликована: Янв. 24, 2025
Proton
membrane
exchange
fuel
cells
(PEMFCs)
provide
an
important
energy
solution
to
decarbonizing
transport
sectors
and
electric
systems
due
zero
carbon
emission
during
the
operating
process,
how
enhance
system
efficiency
of
PEMFCs
is
one
most
challengeable
issues
hinder
large-scale
commercial
application
PEMFCs.
In
recent
years,
numerous
studies
have
been
conducted
explore
feasibility
techno-economic
performance
advanced
thermal
management
promote
PEMFC
systems.
The
can
be
implemented
from
two
aspects:
efficient
cooling
methods
maintain
under
proper
working
temperature
range,
other
waste
heat
recovery
improve
overall
efficiency.
Concentrated
on
these
topics,
many
achievements
gained
by
academic
industrial
communities,
it
imperative
analyze
conclude
experienced
mechanism,
technology,
aspects.
Therefore,
this
review
summarized
great
advances
with
for
sake
improving
systems,
providing
guidelines
future
design
optimization
Язык: Английский
A comprehensive review of cold start in proton-exchange membrane fuel cells: Challenges, strategies, and prospects
Applied Energy,
Год журнала:
2025,
Номер
390, С. 125846 - 125846
Опубликована: Апрель 7, 2025
Язык: Английский
Proton exchange membrane fuel cell fueled by impure hydrogen and air: A review
International Journal of Hydrogen Energy,
Год журнала:
2025,
Номер
126, С. 110 - 124
Опубликована: Апрель 9, 2025
Язык: Английский
Proton exchange membrane fuel cell fueled by impure hydrogen and air: A review
International Journal of Hydrogen Energy,
Год журнала:
2025,
Номер
127, С. 845 - 858
Опубликована: Апрель 17, 2025
Язык: Английский
Influence of the active area shape on the performance of an open-cathode proton exchange membrane fuel cell stack
International Journal of Hydrogen Energy,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 1, 2025
Язык: Английский
Design and optimization of the bionic shark dermal denticle structure for proton exchange membrane fuel cell
Journal of Power Sources,
Год журнала:
2025,
Номер
647, С. 237348 - 237348
Опубликована: Май 14, 2025
Язык: Английский
Effects of Sol–Gel Modification on the Microstructure of Nafion Membranes
Polymers,
Год журнала:
2025,
Номер
17(11), С. 1542 - 1542
Опубликована: Июнь 1, 2025
Proton
exchange
membrane
(PEM)
is
a
key
component
of
PEM
fuel
cells,
where
the
plays
decisive
role
in
determining
system
efficiency
and
overall
performance.
The
modification
PEMs
with
hydrophilic
dopants
represents
promising
strategy
for
extending
operational
range
these
devices,
particularly
low-humidity
high-temperature
regimes.
In
this
study,
Nafion
membranes
were
modified
silica
nanoparticles
via
sol–gel
method;
samples
1,
3,
5,
10
wt.%
SiO2
obtained.
Evaluation
parameters
demonstrated
improvement
water
uptake
proton
conductivity
content
up
to
5
wt.%,
while
no
significant
changes
thermal
stability
(30–700
°C)
observed.
structural
composite
investigated
using
small-angle
X-ray
scattering
(SAXS)
technique.
SAXS
data
analyzed
model-dependent
approach:
spherical
ionic
domain
model
was
account
contribution
from
nanoparticles.
results
obtained
reduction
size
unmodified
domains,
indicating
reorganization
membrane’s
microstructure.
Язык: Английский