Advanced Energy Materials,
Journal Year:
2022,
Volume and Issue:
12(24)
Published: May 11, 2022
Abstract
Since
the
discovery
of
Rochelle
salt
a
century
ago,
ferroelectric
materials
have
been
investigated
extensively
due
to
their
robust
responses
electric,
mechanical,
thermal,
magnetic,
and
optical
fields.
These
features
give
rise
series
ferroelectric‐based
modern
device
applications
such
as
piezoelectric
transducers,
memories,
infrared
detectors,
nonlinear
devices,
etc.
On
way
broaden
material
systems,
for
example,
from
three
two
dimensions,
new
phenomena
topological
polarity,
improper
ferroelectricity,
magnetoelectric
effects,
domain
wall
nanoelectronics
bear
hope
next‐generation
electronic
devices.
In
meantime,
research
has
aggressively
extended
more
diverse
solar
cells,
water
splitting,
CO
2
reduction.
this
review,
most
recent
progress
on
newly
emerging
states
in
insulators,
ionic
conductors,
metals
are
summarized,
which
used
energy
storage,
harvesting,
electrochemical
conversion.
Along
with
intricate
coupling
between
polarization,
coordination,
defect,
spin
state,
exploration
transient
behavior,
migration,
polarization
switching
dynamics,
sets
up
physical
foundation
research.
Accordingly,
understanding
physics
is
expected
provide
insightful
guidance
design
advanced
materials.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
33(51)
Published: Oct. 13, 2021
The
built-in
electric
field
can
be
generated
in
the
piezoelectric
materials
under
mechanical
stress.
resulting
effect
is
beneficial
to
charge
separation
photocatalysis.
Meanwhile,
stress
usually
gives
rise
accelerated
mass
transfer
and
enhanced
catalytic
activity.
Unfortunately,
it
remains
a
challenge
differentiate
contribution
of
these
two
factors
performance.
Herein,
for
first
time,
isostructural
metal-organic
frameworks
(MOFs),
i.e.,
UiO-66-NH2
(Zr)
(Hf),
are
adopted
piezo-photocatalysis.
Both
MOFs,
featuring
same
structures
except
diverse
Zr/Hf-oxo
clusters,
possess
distinctly
different
properties.
Strikingly,
(Hf)
exhibits
≈2.2
times
activity
compared
with
that
simultaneous
light
ultrasonic
irradiation,
though
both
MOFs
display
similar
photocatalytic
H2
production
without
irradiation.
Given
their
pore
features
behaviors,
difference
unambiguously
assignable
effect.
As
result,
contributions
piezo-photocatalysis
clearly
distinguished
owing
stronger
property
(Hf).
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(25)
Published: Jan. 12, 2023
Abstract
Emerging
piezocatalysts
have
demonstrated
their
remarkable
application
potential
in
diverse
medical
fields.
In
addition
to
ultrahigh
catalytic
activities,
inherent
and
unique
charge‐carrier‐releasing
properties
can
be
used
initiate
various
redox
reactions,
displaying
bright
prospects
for
future
applications.
Triggered
by
mechanical
energy,
piezocatalytic
materials
release
electrons/holes,
catalyze
reactions
of
substrates,
or
intervene
biological
processes
promote
the
production
effector
molecules
purposes,
such
as
decontamination,
sterilization,
therapy.
Such
a
piezocatalysis
is
termed
medicine
(PCM)
herein.
To
pioneer
novel
technologies,
especially
therapeutic
modalities,
this
review
provides
an
overview
state‐of‐the‐art
research
progress
medicine.
First,
principle
preparation
methodologies
piezoelectric
are
introduced.
Then,
comprehensive
summary
applications
tumor
treatment,
antisepsis,
organic
degradation,
tissue
repair
regeneration,
biosensing
provided.
Finally,
main
challenges
perspectives
discussed
proposed,
expecting
fuel
development
emerging
scientific
discipline.
Green Energy & Environment,
Journal Year:
2021,
Volume and Issue:
8(1), P. 283 - 295
Published: April 20, 2021
In
this
work,
Ag/Bi5O7I
nanocomposite
was
prepared
and
firstly
applied
in
piezo/photocatalytic
reduction
of
N2
to
NH3
methyl
orange
(MO)
degradation.
Bi5O7I
synthesized
via
a
hydrothermal-calcination
method
shows
nanorods
morphology.
Ag
nanoparticles
(NPs)
were
photo
deposited
on
the
as
electron
trappers
improve
spatial
separation
charge
carriers,
which
confirmed
XPS,
TEM,
electronic
chemical
analyses.
The
catalytic
test
indicates
that
presents
piezoelectric-like
behavior,
while
loading
NPs
can
strengthen
character.
Under
ultrasonic
vibration,
optimal
high
efficiency
MO
degradation
rate
is
determined
be
0.033
min−1,
4.7
folds
faster
than
Bi5O7I.
also
performance
piezocatalytic
fixation.
generation
reaches
65.4
μmol
L−1
g−1
h−1
with
water
hole
scavenger.
addition
methanol
hasten
piezoelectric
reaction.
Interestingly,
when
vibration
light
irradiation
simultaneously
act
catalyst,
higher
observed.
However,
due
weak
adhesion
NPs,
some
would
fall
off
from
surface
under
long-term
greatly
reduce
performance.
This
result
strong
binding
force
required
preparing
composite
catalyst.
current
work
provides
new
insights
for
development
highly
efficient
catalysts
use
multiple
energies.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
61(44)
Published: Sept. 13, 2022
Solar-driven
overall
water
splitting
is
an
ideal
way
to
generate
renewable
energy
while
still
challenging.
For
the
first
time,
this
work
combined
covalent
organic
frameworks
(COFs)
and
piezoelectric
material
by
linkages
form
Z-scheme
core@shell
heterostructure
for
splitting.
Benefiting
from
synergistic
effect
between
polarized
electric
field
photo-generated
charges,
as
well
precise
adjustment
of
shell
thickness,
carrier
separation
utilization
efficiency
greatly
improved.
The
optimal
BiFeO3
@TpPa-1-COF
photocatalyst
revealed
hydrogen
(H2
)
oxygen
(O2
production
rates
1416.4
708.2
μmol
h-1
g-1
under
excitation
ultrasonication
coupled
with
light
irradiation,
which
best
performance
among
various
piezo-
COF-based
photocatalysts.
This
provides
a
new
sight
practical
application
highly
efficient
photocatalytic
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: Jan. 10, 2022
Mechanochemistry
has
been
studied
for
some
time,
but
research
on
the
reactivity
of
charges
exchanged
by
contact-electrification
(CE)
during
mechanical
stimulation
remains
scarce.
Here,
we
demonstrate
that
electrons
transferred
CE
between
pristine
dielectric
powders
and
water
can
be
utilized
to
directly
catalyze
reactions
without
use
conventional
catalysts.
Specifically,
frequent
at
Fluorinated
Ethylene
Propylene
(FEP)
-
interface
induces
electron-exchanges,
thus
forming
reactive
oxygen
species
degradation
an
aqueous
methyl
orange
solution.
Contact-electro-catalysis,
conjunction
CE,
mechanochemistry
catalysis,
proposed
as
a
general
mechanism,
which
demonstrated
effective
various
materials,
such
Teflon,
Nylon-6,6
rubber.
This
original
catalytic
principle
not
only
expands
range
also
enables
us
envisage
processes
through
mechano-induced
contact-electrification.
Angewandte Chemie,
Journal Year:
2021,
Volume and Issue:
134(6)
Published: Oct. 8, 2021
Piezocatalysis,
a
newly
emerging
catalysis
technology
that
relies
on
the
piezopotential
and
piezoelectric
properties
of
catalysts,
is
attracting
unprecedented
research
enthusiasm
for
applications
in
energy
conversion,
organic
synthesis,
environmental
remediation.
Despite
rapid
development
past
three
years,
mechanism
piezocatalysis
still
under
debate.
A
fundamental
understanding
working
principles
this
should
enable
future
design
optimization
piezocatalysts.
Herein,
we
provide
an
overview
two
popular
theories
used
to
explain
observed
piezocatalysis:
band
theory
screening
charge
effect.
comprehensive
discussion
clarification
differences,
relevance,
evidence,
contradiction
mechanisms
are
provided.
Finally,
challenges
perspectives
mechanistic
studies
highlighted.
Hopefully,
Review
can
help
readers
gain
better
its
application
their
own
research.