ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
15(1), P. 193 - 200
Published: Dec. 16, 2024
Electrochemical
two-electron
water
oxidation
(2e–
WOR)
represents
a
promising
approach
for
the
renewable
and
on-site
production
of
H2O2,
potentially
replacing
anthraquinone
process.
Nevertheless,
it
faces
intense
competition
from
conventional
four-electron
oxygen
evolution
reaction
(OER),
resulting
in
low
selectivity,
high
overpotential,
yield.
Herein,
taking
carbon-based
structures
with
2e–
WOR
selectivity
as
model
catalysts,
by
manipulating
electrolyte,
increased
maximum
Faraday
efficiency
H2O2
to
71
±
3%,
an
rate
11.7
μmol
cm–2
min–1.
The
activity
was
found
be
most
sensitive
alkali
metal
cations
following
order:
Cs+
>
K+
Na+
Li+.
In
situ
spectroscopy
characterization
confirmed
that
larger
facilitate
generation
peroxide
species;
this
is
because,
on
one
hand,
can
regulate
electronic
catalyst
sites
improve
adsorption
intermediates;
other
cation-hydrogen
interaction
regulates
stable
coordination
cation,
realizes
reforming
hydrogen
bond
network,
prevents
its
further
into
O2.
With
help
flow
electro-synthetic
cell,
we
successfully
achieve
rapid
degradation
organic
pollutants
preparation
solid
(sodium
peroxycarbonate).
This
work
not
only
enriches
understanding
cationic
mechanisms
but
also
provides
implications
rational
optimization
strategies
electrode/electrolyte
interface.
ChemPlusChem,
Journal Year:
2024,
Volume and Issue:
89(11)
Published: July 16, 2024
Abstract
The
two‐electron
oxygen
reduction
reaction
(2e‐ORR)
for
the
sustainable
synthesis
of
hydrogen
peroxide
(H
2
O
)
has
demonstrated
considerable
potential
local
production
this
environmentally
friendly
chemical
oxidant
on
small,
medium,
and
large
scales.
This
method
offers
a
promising
alternative
to
energy‐intensive
anthraquinone
approach,
placing
primary
emphasis
development
efficient
electrocatalysts.
Improving
efficiency
electrocatalysts
uncovering
their
catalytic
mechanisms
are
essential
steps
in
achieving
high
2e‐ORR
activity,
selectivity,
stability.
comprehensive
review
summarizes
recent
advancements
in‐situ
H
production,
providing
detailed
overview
field.
In
particular,
delves
into
design,
fabrication,
investigation
active
sites
contributing
selectivity.
Additionally,
it
highlights
range
including
pure
metals
alloys,
transition
metal
compounds,
single‐atom
catalysts,
carbon‐based
catalysts
pathway.
Finally,
addresses
significant
challenges
opportunities
electrosynthesis,
as
well
future
research
directions.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(22), P. 10852 - 10877
Published: Jan. 1, 2024
Dynamic
evolution
processes
in
electrocatalysis,
including
structure
of
electrocatalysts,
characterization
methods
and
regulation
strategies
for
dynamic
electrocatalysis.
Physical Chemistry Chemical Physics,
Journal Year:
2024,
Volume and Issue:
26(34), P. 22620 - 22639
Published: Jan. 1, 2024
Catalysis
is
a
quantum
phenomenon
enthalpically
driven
by
electronic
correlations
with
many-particle
effects
in
all
of
its
branches,
including
electro-photo-catalysis
and
electron
transfer.
This
means
that
only
probability
amplitudes
provide
complete
relationship
between
the
state
catalysis
observations.
Thus,
any
atomic
system
material),
competing
space-time
interactions
coexist
to
define
(related)
properties
such
as
stability,
(super)conductivity,
magnetism
(spin-orbital
ordering),
chemisorption
catalysis.
Catalysts,
reactants,
chemisorbed
transition
states
have
possibility
optimizing
improve
reaction
kinetics.
Active
sites
closed-shell
orbital
configurations
share
maximum
number
spin-paired
electrons,
mainly
coulombic
attractions
covalency
defining
weakly
correlated
(WCCS)
structures.
However,
compositions
open-shell
configurations,
at
least,
spin
exchange
(QSEIopenshells)
arise,
stabilising
unpaired
electrons
less
covalent
bonds
differentiating
non-weakly
(or
strongly)
(NWCOS)
systems.
In
NWCOS
catalysts,
ground
can
diverse
rival
spin-orbital
orderings
well
ferro-,
ferri-
multiple
antiferro-magnetic
textures,
which
deeply
their
activities.
Particularly
inter-atomic
ferromagnetic
(FM)
bonds,
increase
relevance
non-classical
potentials
significantly
optimize
energies,
(TSs),
activation
energies
(overpotential)
spin-dependent
transfer
(conductivity),
overall
implying
need
for
explaining
thermodynamic
kinetic
origin
from
true
energy.
To
do
so,
we
use
connection
Born-Oppenheimer
approximation
Virial
theorem
treatment
potential
energies.
exact
fundamental
decompose
TSs
appear.
The
increasing
stabilization
TSs,
due
on
NWCO
opens
simultaneously
reducing
enthalpies
barriers
mechanisms,
implies
anticipation
explanation
positive
deviations
Brønsted-Evans-Polanyi
principle.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 21, 2025
Abstract
The
oxygen
evolution
reaction
(OER)
involves
the
recombination
of
diamagnetic
hydroxyl
(OH)
or
water
(H
2
O)
into
paramagnetic
triplet
state
(O
).
spin
conservation
intermediates
plays
a
crucial
role
in
OER,
however,
research
on
dynamics
during
catalytic
process
remains
its
early
stages.
Herein,
β
‐Ni(OH)
and
Fe‐doped
(Ni
5
Fe
1
)
are
utilized
as
model
catalysts
to
understand
mechanism
magnetic
effects
at
iron
(III)
sites
OER.
Combined
with
characterization,
it
is
founded
that
introduction
transforms
antiferromagnetic
Ni(OH)
ferromagnetic
material.
Testing
response
catalyst
under
an
external
field,
OER
activity
Ni
significantly
enhanced
comparison
.
This
improvement
likely
due
sites,
which
promote
enhance
kinetics,
thereby
increasing
efficiency.
Combining
experimental
theoretical
discovered
accelerate
formation
heterogeneous
dual‐site
O─O
bridging,
represented
─Ni─O─O─Fe─,
effectively
enhancing
kinetics
reaction.
study
provides
perspective
structure‐function
relationship
iron‐based
has
significant
implications
for
design
new
catalysts.
Deleted Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 4, 2025
Abstract
Chiral
organic
materials
have
garnered
significant
interest
in
nanophononics
due
to
their
ability
manipulate
polarized
light
and
encode
optical
information.
Herein,
chiral
one‐dimensional
(1D)
microplates
based
on
benzocyclazine
form
homochiral
crystals
that
exhibit
excellent
waveguiding
properties.
These
exhibited
highly
asymmetric
propagation
depends
the
handedness
of
circularly
(CPL).
demonstrated
selective
transmission,
with
R
‐microplate
favouring
left‐handed
CPL
S
right‐handed
CPL,
showcasing
distinct
loss
coefficients
for
each
enantiomer.
Multichannel
was
observed,
where
intensity
varied
excitation
position.
results
highlight
potential
1D
advanced
nanophotonic
devices,
offering
chiral‐dependent
control
over
transmission
future
applications
information
processing.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 25, 2025
Abstract
Asymmetric
electron
distribution
of
single‐atom
catalysts
(SAC)
is
an
important
means
regulating
intrinsic
catalytic
activity.
However,
limited
by
synthetic
preparation
methods,
understanding
the
mechanism
asymmetrically
coordinated
catalysis
restricted.
In
this
study,
leveraging
micropore
confinement
effect,
nitrogen
and
phosphorus‐doped
microporous
carbon
used
as
a
substrate
to
successfully
anchor
singly
dispersed
Fe
atoms,
constructing
site
with
N
P
atoms
(Fe‐SAs/NPC).
The
existence
Fe‐N
3
1
structure
breaks
symmetry
4
in
Fe‐SAs/NC,
which
would
optimize
adsorption
strength
intermediates.
resulting
Fe‐SAs/NPC
exhibits
excellent
ORR
activity
half‐wave
potential
0.91
V
(0.1
m
KOH),
40
mV
higher
than
that
Fe‐SAs/NC
(0.87
V).
Combined
theoretical
calculations,
in‐depth
asymmetric
electronic
configuration
from
perspective
spin
orbitals
can
enhance
near
Fermi
level
strengthen
oxygen‐containing
This
work
provides
new
perspectives
ideas
for
spin‐electronic
behavior
processes.
Furthermore,
Zn‐air
battery
constructed
using
high
power
density
187.7
mW
cm
−2
specific
capacity
819.6
mAh
g
Zn
−1
at
10
mA
.
