ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 29, 2025
This
work
introduces
a
magnetic
conductive
atomic
force
microscopy
(mc-AFM)
measurement
platform
for
determining
spin
polarizations,
arising
from
the
chiral-induced
selectivity
(CISS)
effect
along
different
directions
in
helical
conducting
fibers.
By
using
principle
that
preference
electron
transport
chiral
material
changes
with
momentum
of
electron,
this
method
quantifies
polarization
materials,
which
straddle
ferromagnetic
electrode,
i.e.,
by
taking
measurements
regions
to
right
and
left
electrode
while
it
is
magnetized
in-plane.
The
working
mechanism
shown
polyaniline
(PANI)
fibers,
they
reveal
longitudinal,
fiber's
axis,
transverse,
perpendicular
fiber
magnetoresistance
differ
about
factor
2.
observations
imply
PANI
fibers
not
consistent
models
attribute
(or
magnetoresistance)
solely
spinterface
or
spin-dependent
charge
injection
barriers.
In
aggregate,
new
offers
simplified
approach
extending
mc-AFM
resolving
spin-filtered
currents
oriented
samples.
Chemical Society Reviews,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
This
review
systematically
summarizes
recent
advanced
strategies
for
manipulating
electron
spin
to
optimize
photocatalysis.
It
provides
valuable
insights
guide
future
research
on
control
enhancing
photocatalytic
applications.
Carbon Energy,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 20, 2025
ABSTRACT
Carbon
electrocatalyst
materials
based
on
lignocellulosic
biomass
with
multi‐components,
various
dimensions,
high
carbon
content,
and
hierarchical
morphology
structures
have
gained
great
popularity
in
electrocatalytic
applications
recently.
Due
to
the
catalytic
deficiency
of
neutral
atoms,
usage
single
lignocellulosic‐based
electrocatalysis
involving
energy
storage
conversion
presents
unsatisfactory
applicability.
However,
atomic‐level
modulation
lignocellulose‐based
can
optimize
electronic
structures,
charge
separation,
transfer
processes,
so
forth,
which
results
substantially
enhanced
performance
carbon‐based
catalysts.
This
paper
reviews
recent
advances
rational
design
as
electrocatalysts
from
an
perspective,
such
self/external
heteroatom
doping
metal
modification.
Then,
through
systematic
discussion
principles
reaction
mechanisms
catalysts,
prepared
catalysts
rechargeable
batteries
are
reviewed.
Finally,
challenges
improving
prospects
diverse
review
contributes
synthesis
strategy
via
modulation,
turn
promotes
lignocellulose
valorization
for
conversion.
The
urgent
need
to
alleviate
global
warming
and
limit
the
consumption
of
fossil
fuels
has
prompted
development
rechargeable
Zn–air
batteries
(ZABs)
considering
their
superior
energy
density,
safety,
cost-effectiveness.
However,
sluggish
reaction
kinetics
oxygen
evolution
(OER)
unfavorable
properties
conventional
OER
catalysts
(including
low
electrical
conductivity
use
active
site-blocking
binders)
hinder
practically
viable
ZABs.
Herein,
we
report
a
distinct
approach
for
directly
synthesizing
cobalt-doped
nickel
oxide
(Co-NiO)
with
chiral
structure
on
porous
Ni
foam
via
one-step
hydrothermal
process.
chirality-induced
spin
selectivity
(CISS)
boosts
kinetics,
while
Co
doping
elevates
abundance
sites
catalyst.
Co-NiO
demonstrates
an
current
density
10
mA
cm–2
at
1.58
V
versus
reversible
hydrogen
electrode,
outperforming
both
achiral
undoped
NiO.
Furthermore,
Co-NiO-based
ZAB
high
open-circuit
potential
(1.57
V),
charge/discharge
overpotential
(0.71
excellent
stability
960
h
(40
days)
because
CISS
effect
mitigates
production
corrosive
singlet
oxygen.
These
results
represent
prominent
pathway
advancement
ZABs
using
low-cost
catalyst
modulated
by
heteroatomic
doping.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 11, 2025
Controlling
the
electron
spin
of
oxygen-containing
intermediates
is
crucial
for
efficient
oxygen
electrocatalysis
toward
clean
energy
technologies
such
as
fuel
cells
and
water
electrolysis.
Current
strategies
controlling
spins
rely
mainly
on
tuning
chemical
structure
electrocatalyst,
which
often
hardly
achieved
metal
oxide
electrocatalysts.
The
chiral-induced
selectivity
(CISS)
effect,
a
significant
discovery
in
chiral
spintronics,
represents
an
alternative
approach
Here
we
demonstrate
use
intrinsic
nanoparticles
electron-spin
filters
to
tune
electrocatalytic
reactions.
Chiral
Au
with
concave
vortex
cube
were
employed
substrate,
exhibiting
highly
tunable
optical
chirality
intriguing
CISS-like
effect.
As
model
systems,
catalytically
active
components
Pt
or
Ni(OH)2
are
overgrown
onto
construct
hybrid
Remarkably,
both
cases
show
chirality-dependent
activities
over
reduction/evolution
reactions,
respectively.
insights
gained
from
this
work
not
only
shed
light
underlying
mechanisms
dictating
CISS-enhanced
by
but
also
provide
important
knowledge
framework
that
guides
rational
design
electrocatalysts
electrocatalysis.
