ACS Applied Energy Materials,
Journal Year:
2024,
Volume and Issue:
7(15), P. 6821 - 6826
Published: July 29, 2024
Highly
reactive,
long-term
stable,
and
low-cost
non-noble
metal–nitrogen–carbon
(M–N–C)
catalysts
have
been
widely
considered
as
promising
for
the
oxygen
reduction
reaction
(ORR)
in
alkaline
anion
exchange
membrane
fuel
cells
(AEMFCs).
However,
slow
chemical
kinetics
poor
stability
of
these
remain
main
challenges
their
widespread
application.
Herein,
Mo2TiC2–NH4
supports
are
utilized
by
loading
metal
CoCu–N–C
ORR
catalyst
AEMFCs.
The
half-wave
potential
CoCu–N–C/Mo2TiC2–NH4
reaches
0.87
V
decreases
only
2
mV
after
10
000
cycles.
cell
peak
power
density
based
on
is
over
500
mW
cm–2.
Journal of Electrochemical Science and Technology,
Journal Year:
2024,
Volume and Issue:
15(2), P. 207 - 219
Published: March 14, 2024
<p>Metal-N-C
(MNC)
catalysts
have
been
anticipated
as
promising
candidates
for
oxygen
reduction
reaction
(ORR)
to
achieve
low-cost
polymer
electrolyte
membrane
fuel
cells.
The
structure
of
the
M-N<sub>x</sub>
moiety
enabled
a
high
catalytic
activity
that
was
not
observed
in
previously
reported
transition
metal
nanoparticle-based
catalysts.
Despite
progress
non-precious
catalysts,
low
density
active
sites
MNCs,
which
resulted
lower
single-cell
performance
than
Pt/C,
needs
be
resolved
practical
application.
This
review
focused
on
recent
studies
and
methodologies
aimed
overcome
these
limitations
develop
an
inexpensive
catalyst
with
excellent
durability
alkaline
environment.
It
included
possibility
metals
materials
ORR
starting
from
Co
phthalocyanine
development
(e.g.,
metal-coordinated
N-containing
polymers,
metal-organic
frameworks)
form
sites,
moieties.
Thereafter,
motivation,
procedures,
latest
research
design
morphology
improved
mass
transport
ability
site
engineering
allowed
promoted
kinetics
were
discussed.</p>
ACS Applied Energy Materials,
Journal Year:
2024,
Volume and Issue:
7(15), P. 6821 - 6826
Published: July 29, 2024
Highly
reactive,
long-term
stable,
and
low-cost
non-noble
metal–nitrogen–carbon
(M–N–C)
catalysts
have
been
widely
considered
as
promising
for
the
oxygen
reduction
reaction
(ORR)
in
alkaline
anion
exchange
membrane
fuel
cells
(AEMFCs).
However,
slow
chemical
kinetics
poor
stability
of
these
remain
main
challenges
their
widespread
application.
Herein,
Mo2TiC2–NH4
supports
are
utilized
by
loading
metal
CoCu–N–C
ORR
catalyst
AEMFCs.
The
half-wave
potential
CoCu–N–C/Mo2TiC2–NH4
reaches
0.87
V
decreases
only
2
mV
after
10
000
cycles.
cell
peak
power
density
based
on
is
over
500
mW
cm–2.
