Molecules,
Journal Year:
2024,
Volume and Issue:
29(23), P. 5675 - 5675
Published: Nov. 30, 2024
Microbial
fuel
cell
(MFC)
can
degrade
pesticide
wastewater
and
recovery
energy
simultaneously,
the
activated
carbon
(AC)
air
cathode
has
great
prospects
for
practical
application.
However,
insufficient
active
sites
limitation
of
multi-step
electron
transfer
oxygen
reduction
reaction
(ORR)
requires
that
AC
should
be
modified
by
highly
efficient
electrocatalysts.
Herein,
busing
confinement
effect
carbon-encapsulated
metal
hollow
carbon,
we
designed
a
unique
ORR
catalyst
Fe-Fe
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(22), P. 15356 - 15365
Published: May 22, 2024
Electrosynthesis
has
emerged
as
an
enticing
solution
for
hydrogen
peroxide
(H2O2)
production.
However,
efficient
H2O2
generation
encounters
challenges
related
to
the
robust
gas–liquid–solid
interface
within
electrochemical
reactors.
In
this
work,
we
introduce
effective
hydrophobic
coating
modified
by
iron
(Fe)
sites
optimize
reaction
microenvironment.
This
modification
aims
mitigate
radical
corrosion
through
Fe(II)/Fe(III)
redox
chemistry,
reinforcing
microenvironment
at
three-phase
interface.
Consequently,
achieved
a
remarkable
yield
of
up
336.1
mmol
h–1
with
sustained
catalyst
operation
extensive
duration
230
h
200
mA
cm–2
without
causing
damage
Additionally,
Faradaic
efficiency
exceeded
90%
across
broad
range
test
current
densities.
surface
chemistry
approach
manipulating
not
only
advances
long-term
electrosynthesis
but
also
holds
promise
other
gas-starvation
reactions.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 11, 2024
The
core
of
clean
energy
technologies
such
as
fuel
cells,
water
electrolyzers,
and
metal-air
batteries
depends
on
a
series
oxygen
hydrogen-based
electrocatalysis
reactions,
including
the
reduction
reaction
(ORR),
evolution
(OER)
hydrogen
(HER),
which
necessitate
cost-effective
electrocatalysts
to
improve
their
efficiency.
In
recent
decade,
complex
metal
oxides
(beyond
simple
transition
oxides,
spinel
ABO
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(44)
Published: June 24, 2024
Single-atom
catalysts
(SACs)
are
flourishing
in
various
fields
because
of
their
100%
atomic
utilization.
However,
uncontrollable
selectivity,
poor
stability
and
vulnerable
inactivation
remain
critical
challenges.
According
to
theoretical
predictions
experiments,
a
heteronuclear
CoZn
dual-single-atom
confined
N/O-doped
hollow
carbon
nanotube
reactors
(CoZn
The
electrochemical
two-electron
water
oxidation
reaction
(2e–WOR)
provides
a
state-of-the-art
alternative
for
the
generation
of
hydrogen
peroxide
(H2O2).
However,
previously
reported
catalysts
cannot
simultaneously
achieve
both
high
selectivity
and
H2O2
yield,
which
constitutes
bottleneck
widespread
application
this
technology.
In
study,
cost-effective
pyrolysis
technique
was
used
to
prepare
zinc
oxide
nanoparticles
enriched
with
oxygen
vacancy
defects,
were
loaded
onto
surface
three-dimensional
conductive
carbon
cloth
an
environmentally
friendly
eco-electrocatalyst.
Density
functional
theory
calculations
determining
Ov
content
on
ZnO(002)
indicated
continuous
increase
in
level
Ov,
played
crucial
role
regulating
free
energy
adsorption
intermediates
associated
competitive
four-electron
pathway.
Due
enhanced
ZnO
selectivity,
superior
fiber
conductivity,
promoted
active
site
exposure,
structure
mass
transfer,
ZnO/CC-450
electrode
exhibited
preeminent
2e–WOR
performances
(72.34%
at
2.8
V
vs
RHE),
vigorous
rate
(17.32
μmol
cm–2
min–1),
robust
stability.
work
comprehensive
insight
into
efficient,
promising,
approach
situ
simple
preparation,
facilitating
wide
prospect.
Highlights in Science Engineering and Technology,
Journal Year:
2025,
Volume and Issue:
125, P. 416 - 427
Published: Feb. 18, 2025
The
electrochemical
synthesis
of
hydrogen
peroxide
(H2O2)
through
the
two-electron
oxygen
reduction
reaction
(2e−
ORR)
presents
a
promising
alternative
to
conventional
anthraquinone
oxidation
method.
successful
commercialization
H2O2
production
depends
critically
on
fabrication
efficient
cathode
catalysts
that
exhibit
high
catalytic
activity,
selectivity,
and
stability.
However,
achieving
significant
yields
with
advanced
electrocatalysts
remains
challenging.
This
paper
systematic
review
latest
advancements
in
design,
synthesis,
application
for
production,
focus
noble
metals,
transition
carbon-based
systems.
In
addition,
strategies
enhancing
electrocatalytic
activity
selectivity
are
also
discussed,
aiming
at
developing
cost-effective,
high-performance
2e−
ORR.
Finally,
we
summarize
critical
challenges
this
field,
providing
comprehensive
reference
guide
future
research
development
efforts
improving
technologies.
By
addressing
these
encouraging
innovative
approaches,
may
advance
toward
more
sustainable
industrial
applications.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 30, 2025
Abstract
Electrocatalytic
two‐electron
oxygen
reduction
(2e
−
ORR)
offers
an
environmentally
friendly
route
for
H
2
O
production,
yet
faces
challenges
in
activation
and
*OOH
intermediate
stabilization.
Here,
Bi‐TiO
2−x
nanocatalysts
are
introduced
featuring
frustrated
Lewis
acid‐base
pairs
(FLPs)
active
sites,
where
the
Bi
single
atoms
with
electron‐deficient
characteristics
serve
as
acidic
(LA)
sites
surrounding
vacancy
(O
V
)
act
basic
(LB)
sites.
The
catalyst
exhibits
high
selectivity
up
to
96.5%.
Furthermore,
a
flowing
electrolytic
cell,
reaches
93.9%
yield
of
1.56
mol
g
−1
h
at
−50
mA
cm
−2
is
able
maintain
stable
reaction
54
h.
Theoretical
calculations
situ
spectroscopic
analyses
indicate
that
FLPs
structure
can
effectively
promote
dissociation
during
reaction,
provide
protons
subsequent
facilitate
formation
intermediates.
coupling
system
2e
ORR
ethylene
glycol
oxidation
significantly
improves
98.9%
3.02
,
meanwhile,
anode
simultaneously
produces
formic
acid
co‐product,
which
utilization
resources.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(44)
Published: May 20, 2024
Abstract
High‐efficiency
electrocatalysts
play
an
important
role
in
clean
energy
conversion
technologies.
Generally,
different
environments,
including
voltage,
acid,
and
alkali
electrolytes,
are
more
susceptible
to
corrosion,
which
will
induce
structural
performance
changes.
Based
on
the
latest
achievements
corrosion
protection
of
advanced
technologies,
this
review
mainly
studies
application
various
strategies
construct
superior
electrocatalysts,
chemical
etching,
metal
transformation,
reconstruction,
their
affecting
factors
also
appraised
summarized.
To
improve
stability
inhibition
strategies,
such
as
carrier
improvement
composition
regulation
accompanied
by
structure
optimization,
reviewed.
In
addition,
catalyst
electrochemical
technologies
is
examined
from
perspective
structure‐activity‐performance
relationship.
end,
article
concludes
challenges
electrocatalyst
storage
This
provides
insights
directions
for
designing
with
high
efficiency
low
beneficial
developing
chemistry
sustainable
