Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Nov. 1, 2024
Double-atom
catalysts
(DACs)
have
opened
distinctive
paradigms
in
the
field
of
rapidly
developing
atomic
catalysis
owing
to
their
great
potential
for
promoting
catalytic
performance
various
reaction
systems.
However,
increasing
loading
and
extending
service
life
metal
active
centres
represents
a
considerable
challenge
efficient
utilization
DACs.
Here,
we
rationally
design
asymmetric
nitrogen,
sulfur-coordinated
diatomic
iron
on
highly
defective
nitrogen-doped
carbon
nanosheets
(denoted
A-Fe
Molecules,
Journal Year:
2024,
Volume and Issue:
29(2), P. 537 - 537
Published: Jan. 22, 2024
Proton
Exchange
Membrane
Water
Electrolysis
(PEMWE)
under
acidic
conditions
outperforms
alkaline
water
electrolysis
in
terms
of
less
resistance
loss,
higher
current
density,
and
produced
hydrogen
purity,
which
make
it
more
economical
long-term
applications.
However,
the
efficiency
PEMWE
is
severely
limited
by
slow
kinetics
anodic
oxygen
evolution
reaction
(OER),
poor
catalyst
stability,
high
cost.
Therefore,
researchers
past
decade
have
made
great
efforts
to
explore
cheap,
efficient,
stable
electrode
materials.
Among
them,
RuO2
electrocatalyst
has
been
proved
be
a
major
promising
alternative
Ir-based
catalysts
most
OER
owing
its
excellent
electrocatalytic
activity
pH
adaptability.
In
this
review,
we
elaborate
two
mechanisms
(lattice
mechanism
adsorbate
mechanism),
comprehensively
summarize
discuss
recently
reported
RuO2-based
electrocatalysts
conditions,
propose
many
advanced
modification
strategies
further
improve
stability
OER.
Finally,
provide
suggestions
for
overcoming
challenges
faced
practical
applications
prospects
future
research.
This
review
provides
perspectives
guidance
rational
design
highly
active
based
on
PEMWE.
Carbon Energy,
Journal Year:
2024,
Volume and Issue:
6(9)
Published: April 17, 2024
Abstract
Designing
high‐performance
and
low‐cost
electrocatalysts
for
oxygen
evolution
reaction
(OER)
is
critical
the
conversion
storage
of
sustainable
energy
technologies.
Inspired
by
biomineralization
process,
we
utilized
phosphorylation
sites
collagen
molecules
to
combine
with
cobalt‐based
mononuclear
precursors
at
molecular
level
built
a
three‐dimensional
(3D)
porous
hierarchical
material
through
bottom‐up
biomimetic
self‐assembly
strategy
obtain
single‐atom
catalysts
confined
on
carbonized
self‐assembled
carriers
(Co
SACs/cBSC)
after
subsequent
high‐temperature
annealing.
In
this
strategy,
biomolecule
improved
anchoring
efficiency
metal
precursor
precise
functional
groups;
meanwhile,
binding‐then‐assembling
also
effectively
suppressed
nonspecific
adsorption
ions,
ultimately
preventing
atomic
agglomeration
achieving
strong
electronic
metal‐support
interactions
(EMSIs).
Experimental
characterizations
confirm
that
binding
forms
between
cobalt
substrate
(Co–O
4
–P).
Theoretical
calculations
disclose
local
environment
changes
significantly
tailored
Co
d‐band
center,
optimized
oxygenated
intermediates
barrier
release.
As
result,
obtained
SACs/cBSC
catalyst
can
achieve
remarkable
OER
activity
24
h
durability
in
1
M
KOH
(
η
10
288
mV;
Tafel
slope
44
mV
dec
−1
),
better
than
other
transition
metal‐based
commercial
IrO
2
.
Overall,
presented
prepare
SACs
EMSIs,
providing
new
avenue
preparation
efficient
fine
structures.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Nov. 1, 2024
Double-atom
catalysts
(DACs)
have
opened
distinctive
paradigms
in
the
field
of
rapidly
developing
atomic
catalysis
owing
to
their
great
potential
for
promoting
catalytic
performance
various
reaction
systems.
However,
increasing
loading
and
extending
service
life
metal
active
centres
represents
a
considerable
challenge
efficient
utilization
DACs.
Here,
we
rationally
design
asymmetric
nitrogen,
sulfur-coordinated
diatomic
iron
on
highly
defective
nitrogen-doped
carbon
nanosheets
(denoted
A-Fe
