ChemPlusChem,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 2, 2024
Abstract
Fuel
cells
are
recognized
as
promising
alternatives
to
existing
conventional
energy
systems
for
a
sustainable
future.
However,
the
synthesis
of
efficient
and
robust
platinum
(Pt)
based
catalysts
remains
challenge
practical
fuel
cell
applications.
Herein,
Pt
3
Co/C
nanoparticles
with
about
4.45
nm
firstly
prepared
by
“pre‐lithiation‐deposition”
strategy
on
C
carrier
used
electrocatalysts
cathodic
oxygen
reduction
reaction.
Notably,
after
heat
treatment
at
600
°C,
obtained
Co/C‐600
catalyst
shows
excellent
mass
specific
activities
(MA
SA)
0.69
A
mg
1.01
mA
cm
,
respectively,
which
more
than
one
order
magnitude
higher
that
Pt/C‐600.
In
particular,
accelerated
durability
testing
20k
cycles,
(98.3
%
retention
MA)
is
much
without
pre‐lithiation
(42.5
MA).
The
alloying
Co
use
“pre‐lithiation”
enable
strong
interactions
between
carbon
carriers
Pt‐Co
contributed
increased
activity
stability.
This
work
provides
new
perspective
development
high‐performance
low‐cost
alloy
electrocatalysts.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
This
systematic
and
comprehensive
review
summarizes
the
synthetic
strategies,
structural/compositional
features,
physicochemical
properties,
energy
applications
of
carbon
encapsulated
nanoparticles
as
efficient
electrocatalysts
electrodes.
