Small,
Journal Year:
2024,
Volume and Issue:
20(50)
Published: Oct. 4, 2024
Abstract
Photocatalytic
generation
of
H₂O₂,
involving
both
oxygen
reduction
and
water
oxidation
without
sacrificial
agents,
necessitates
maximized
light
absorption,
suitable
band
structure,
efficient
carrier
transport.
Leveraging
the
redox
capacity
this
study
designs
constructs
a
step‐scheme
heterostructured
SnO₂/Zn₃In₂S₆
catalyst
for
H₂O₂
production
from
seawater
under
ambient
conditions
first
time.
This
photocatalyst
demonstrates
remarkable
rate
43.5
µmol
g⁻¹
min⁻¹
which
can
be
increased
to
80.7
with
additional
O₂
injection.
Extensive
in
situ
ex
characterizations,
supported
by
theoretical
calculations,
reveal
transport
robust
ability,
enabling
complete
photosynthesis
at
sites
S‐scheme
heterojunction.
Furthermore,
it
is
hypothesized
that
substituting
SnO₂
other
semiconductors
such
as
TiO₂,
WO₃,
BiVO₄
all
form
results
confirm
feasibility
design.
Additionally,
recycling
further
utilization
produced.
These
findings
offer
new
insights
into
design
heterostructure
architectures
present
opportunities
agents.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 17, 2025
Abstract
Electrochemical
synthesis
of
hydrogen
peroxide
(H
2
O
)
via
two‐electron
oxygen
reduction
reaction
(2e
−
ORR)
represents
an
economically
viable
alternative
to
conventional
anthraquinone
processes.
While
noble
metal
catalysts
have
dominated
this
field,
carbon‐based
materials
are
emerging
as
promising
alternatives
due
their
low
cost,
abundant
reserves,
and
tunable
properties.
This
mini‐review
summarizes
recent
advances
in
computational
methods,
particularly
the
integration
density
functional
theory
(DFT)
with
machine
learning
(ML),
accelerate
rational
design
electrocatalysts
by
enabling
rapid
screening
structure‐training
predictions.
Meanwhile,
optimization
strategies
systematically
investigated,
focusing
on
four
key
aspects:
atomic‐level
heterochromatic
doping,
defect
engineering,
microenvironment
control,
morphological
design.
Despite
significant
progress
achieving
high
selectivity
activity,
challenges
remain
scaling
these
for
industrial
applications.
Moving
H
will
require
multidisciplinary
efforts
combining
advanced
situ
characterization
techniques,
modeling,
process
engineering
develop
robust
suitable
diverse
operating
conditions.
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(16), P. 12140 - 12151
Published: July 30, 2024
Electrosynthesis
of
hydrogen
peroxide
(H2O2)
is
an
energy-efficient
and
environmentally
friendly
approach
with
the
potential
for
on-site
generation
application
but
severely
constrained
by
lack
efficient
stable
catalysts
to
activate
two-electron
oxygen
reduction
reaction
high
selectivity
generate
H2O2
in
yield.
Herein,
we
report
a
nickel
vanadate
catalyst
(Ni3V2O8-NS)
featuring
selectivity,
activity,
stability.
The
Ni3V2O8-NS
exhibited
across
pH-universal
electrolytes
(acidic
92.28%,
neutral
92.76%,
basic
92.36%),
giving
record
yield
44,010
mmol
h–1
gcatalyst–1
(neutral)
38,043
(weakly
acidic)
customized
flow
cell
displayed
good
stability
during
10-cycles
test
(each
cycle
lasting
10
h)
at
concentration
(10
wt
%).
Based
on
situ
spectroscopic
density
functional
theory
calculations,
effect
Ni–V
revealed,
introduction
V
changing
coordination
environment
surface
Ni
providing
more
suitable
adsorption
energy
intermediate
*OOH,
resulting
its
catalytic
activity.
Furthermore,
concept
production
was
demonstrated
through
oxidative
degradation
dyes
antibiotics.
This
work
has
designed
metal
promising
electrocatalytic
performance,
shedding
light
practicality
H2O2.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 28, 2024
Abstract
The
electrochemical
two‐electron
oxygen
reduction
reaction
(2e
−
ORR)
offers
a
compelling
alternative
for
decentralized
and
on‐site
H
2
O
production
compared
to
the
conventional
anthraquinone
process.
To
advance
this
electrosynthesis
system,
there
is
growing
interest
in
optimizing
interfacial
microenvironment
boost
electrocatalytic
performance.
This
review
consolidates
recent
advancements
engineering
selective
conversion
of
.
Starting
with
fundamental
insights
into
mechanisms,
an
overview
various
strategies
constructing
favorable
local
environment,
including
adjusting
electrode
wettability,
enhancing
mesoscale
mass
transfer,
elevating
pH,
incorporating
electrolyte
additives,
employing
pulsed
electrocatalysis
techniques
provided.
Alongside
these
regulation
strategies,
corresponding
analyses
technical
remarks
are
also
presented.
Finally,
summary
outlook
on
critical
challenges,
suggesting
future
research
directions
inspire
accelerate
practical
application
delivered.
Small,
Journal Year:
2024,
Volume and Issue:
20(50)
Published: Oct. 4, 2024
Abstract
Photocatalytic
generation
of
H₂O₂,
involving
both
oxygen
reduction
and
water
oxidation
without
sacrificial
agents,
necessitates
maximized
light
absorption,
suitable
band
structure,
efficient
carrier
transport.
Leveraging
the
redox
capacity
this
study
designs
constructs
a
step‐scheme
heterostructured
SnO₂/Zn₃In₂S₆
catalyst
for
H₂O₂
production
from
seawater
under
ambient
conditions
first
time.
This
photocatalyst
demonstrates
remarkable
rate
43.5
µmol
g⁻¹
min⁻¹
which
can
be
increased
to
80.7
with
additional
O₂
injection.
Extensive
in
situ
ex
characterizations,
supported
by
theoretical
calculations,
reveal
transport
robust
ability,
enabling
complete
photosynthesis
at
sites
S‐scheme
heterojunction.
Furthermore,
it
is
hypothesized
that
substituting
SnO₂
other
semiconductors
such
as
TiO₂,
WO₃,
BiVO₄
all
form
results
confirm
feasibility
design.
Additionally,
recycling
further
utilization
produced.
These
findings
offer
new
insights
into
design
heterostructure
architectures
present
opportunities
agents.
