ChemNanoMat,
Journal Year:
2023,
Volume and Issue:
10(2)
Published: Nov. 30, 2023
Abstract
The
cathodic
two‐electron
(2e
−
)
oxygen
reduction
reaction
(ORR)
has
garnered
much
attention
for
electrosynthesis
of
hydrogen
peroxide
(H
2
O
).
transition
metal
single‐atom
catalysts
(SACs)
with
tunable
geometry
structure
and
electron
layout
have
displayed
promising
potential
in
this
process.
Notably,
atomically
dispersed
Fe−based
electrocatalysts
been
recognized
as
high‐activity
yet
poor‐selectivity
2e
ORR
due
to
the
high
binding
energy
intermediates
break
peroxy
bond
into
H
O.
In
Concept
,
we
briefly
review
Fe
SAC
production
by
introducing
their
fundamental
mechanism,
chemical
process,
experimental
advancements,
practical
applications.
issues
encountered
corresponding
suggestions
are
discussed.
customized
tailored
isolated
motif
could
fulfill
activity,
selectivity
stability
system
synthesis.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(7)
Published: Sept. 14, 2023
Hydrogen
production
from
electrolytic
water
electrolysis
is
considered
a
viable
method
for
hydrogen
with
significant
social
value
due
to
its
clean
and
pollution-free
nature,
high
efficiency,
purity,
but
the
anode
oxygen
evolution
reaction
(OER)
process
complex
kinetically
slow.
Single-atom
catalysts
(SACs)
100%
atom
utilization
homogeneous
active
sites
often
exhibit
catalytic
activity
are
expected
be
extensively
applied.
The
performance
of
OER
can
further
improved
by
precise
regulation
structure
through
electronic
effects,
coordination
environment,
heteroatomic
doping,
so
on.
In
this
review,
mechanisms
under
different
conditions
introduced,
latest
research
progress
SACs
in
field
systematically
summarized,
then
effects
various
structural
strategies
on
discussed,
principles
ideas
design
proposed.
end,
outstanding
issues
current
challenges
summarized.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(34)
Published: March 13, 2024
Abstract
The
proton
exchange
membrane
water
electrolysis
system
has
long
been
considered
a
promising
technique
for
the
generation
of
hydrogen
owing
to
its
high
electrolytic
efficiency,
reliability,
and
quick
response
renewable
energy
sources.
At
present,
noble
metals
their
oxides
(e.g.,
Pt,
IrO
2
,
RuO
)
are
widely
used
as
active
electrocatalysts
accelerating
conversion
efficiency
process,
especially
in
acidic
media.
Nevertheless,
scarcity
instability
seriously
impede
large‐scale
application
practice.
In
past
years,
metal‐organic
frameworks
(MOFs)
have
proven
be
an
ideal
platform
designing
efficient
cost‐effective
electrodes
due
unique
physicochemical
properties.
this
review,
fundamental
catalytic
mechanisms
evolution
reaction
(HER)
oxygen
(OER)
media
discussed
first.
Then,
design
strategies
advanced
characterizations
MOF‐based
water‐splitting
catalysts
summarized.
Finally,
recent
research
advances
HER
OER
electrolytes,
along
with
current
challenges
future
opportunities,
provided.
Small,
Journal Year:
2024,
Volume and Issue:
20(19)
Published: Jan. 23, 2024
Abstract
Perovskite
oxides
exhibit
bifunctional
activity
for
both
oxygen
reduction
(ORR)
and
evolution
reactions
(OER),
making
them
prime
candidates
energy
conversion
in
applications
like
fuel
cells
metal‐air
batteries.
Their
intrinsic
catalytic
prowess,
combined
with
low‐cost,
abundance,
diversity,
positions
as
compelling
alternatives
to
noble
metal
catalysts.
This
review
encapsulates
the
nuances
of
perovskite
oxide
structures
synthesis
techniques,
providing
insight
into
pivotal
active
sites
that
underscore
their
behavior.
The
focus
centers
on
breakthroughs
surrounding
lanthanum
(La)
strontium
(Sr)‐based
oxides,
specifically
roles
zinc‐air
batteries
(ZABs).
An
introduction
mechanisms
ORR
OER
is
provided.
Moreover,
light
shed
strategies
determinants
central
optimizing
performance
La
Sr‐based
oxides.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(16)
Published: Jan. 4, 2024
Abstract
Memristors
have
recently
become
powerful
competitors
toward
artificial
synapses
and
neuromorphic
computation,
arising
from
their
structural
electrical
similarity
to
biological
neurons.
From
the
diversity
of
materials,
numerous
organic
inorganic
materials
proven
exhibit
great
potential
in
application
memristors.
Herein,
this
work
focuses
on
a
class
memristors
based
frameworks
(OFs)
pay
attention
most
advanced
experimental
demonstrations.
First,
typical
device
structures
memristive
switching
mechanisms
are
introduced.
Second,
latest
progress
OFs‐based
is
comprehensively
summarized,
including
metal‐organic
(MOFs),
covalent
(COFs),
hydrogen‐bonded
(HOFs),
as
well
applications
data
storage,
synapses,
devices.
Finally,
future
challenges
prospects
deeply
discussed.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(13), P. 4646 - 4657
Published: Jan. 1, 2024
Transition
group
metal
catalysts
showing
atomic
dispersion
are
on
the
rise
as
affordable
electrocatalysts
for
oxygen
reduction
reaction
(ORR)
in
fuel
cell
batteries,
but
their
activity
acidic
media
remains
constrained.
Small Methods,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 7, 2025
Abstract
Urea‐assisted
water
splitting
is
a
promising
energy‐saving
hydrogen
(H
2
)
production
technology.
However,
its
practical
application
hindered
by
the
lack
of
high‐performance
bifunctional
catalysts
for
urea
oxidation
reaction
(UOR)
and
evolution
(HER).
Herein,
heterostructured
catalyst
comprising
highly
active
NiSe
Ni
3
Se
,
along
with
conductive
graphene‐coated
nickel
foam
skeleton
(NiSe‐Ni
/GNF)
reported.
The
NiSe‐Ni
originates
from
in
situ
selenization
foam,
allowing
careful
regulation
to
ratio
simply
adjusting
calcination
temperature.
Theoretical
calculations
charge
transfer
between
components
can
optimize
pathways
reduce
corresponding
energy
barriers.
Accordingly,
designed
exhibits
excellent
UOR
HER
activity
stability.
Furthermore,
/GNF‐based
UOR‐HER
electrolyzer
requires
only
1.54
V
achieve
current
density
50
mA
cm
−2
which
lower
than
many
recent
reports
much
1.83
OER‐HER
electrolyzers.
Moreover,
exhibited
negligible
cell
voltage
variation
during
28‐h
stability
test,
indicating
satisfactory
stability,
provides
new
viable
paradigm
H
production.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(35), P. 18502 - 18529
Published: Jan. 1, 2023
Recent
advances
in
two-dimensional
bifunctional
electrocatalysts
for
full
water
splitting
are
systematically
reviewed,
discussing
challenges
and
opportunities
further
research.
