ACS Applied Nano Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 4, 2025
Piezocatalytic
generation
of
H2
is
an
emerging
technology
for
the
collection
and
application
mechanical
energy
efficient
production
sustainable
nowadays.
To
enable
high-efficiency
low-energy
H2,
we
prepared
three
MoS2-based
composites
(MoS2/ZnO,
MoS2/CuFe2O4,
MoS2/ZnO/CuFe2O4)
used
them
as
catalysts
green
synthesis
under
mild
magnetic
stirring
conditions
(namely,
hydraulic
driving)
to
replace
conventional
ultrasonic
vibration.
MoS2/ZnO/CuFe2O4
displayed
highest
piezo-photocatalytic
activity
with
a
notable
rate
3963
μmol
g–1
h–1
in
10
vol
%
methanol–water
mixture,
accompanied
by
1436,
3325,
2538
MoS2,
MoS2/ZnO,
respectively,
at
speed
400
rpm
(hydraulic
gradient,
0.123
s–1)
50
W
light
irradiation.
A
series
characterizations
analyses
were
performed
comprehend
insight
into
catalytic
difference
related
reaction
mechanisms.
The
improved
performance
can
be
ascribed
enhanced
absorption
capability,
reduced
electron
transfer
resistance,
separation
efficiency
charge
carriers,
all
which
are
conducive
evolution.
Holes
played
major
role
generation.
over
was
far
higher
than
reported
values
obtained
using
ultrasound-driven
piezocatalytic
slurries.
delivery
also
achieved
lower
consumption
values.
In
comparison
experiments
this
work,
hydraulic-driven
catalysis
characterized
remarkably
requirements,
less
noise
pollution,
stronger
structural
stability
catalysts.
This
study
provides
method
renewable
energy.
Progress in Materials Science,
Год журнала:
2023,
Номер
138, С. 101161 - 101161
Опубликована: Июль 16, 2023
Piezocatalysis,
an
evolving
catalytic
technology
built
on
the
piezoelectric
properties
of
catalysts,
breaks
down
barrier
between
mechanical
energy
and
chemical
energy.
The
potential
difference
that
arises
from
deformation
a
material
is
commonly
termed
'piezopotential'.
Piezopotential
has
been
demonstrated
to
facilitate
manipulation
band
structure
and/or
charge
carrier
separation.
Despite
significant
efforts
design
materials
understand
mechanism
piezoelectrically
enhanced
chemistry
through
semiconductor
physics,
there
remains
opportunity
review
relationships
performance
piezo/ferroelectric
properties.
Herein,
we
provide
comprehensive
summary
mechanisms
correlated
physical
in
field
piezocatalysis.
A
fundamental
understanding
structural
based
solid-state
physics
can
be
used
shed
light
future
development
In
addition,
types
materials,
strategies
for
catalysis
efficiency
enhancement,
up-to-date
applications
environment
remediation,
renewable
conversion,
biomedicine
biotechnology
are
discussed.
Finally,
perspectives
designing
developing
highly
active
piezocatalysts
using
guidelines
physicochemical
proposed.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(20), С. 26257 - 26271
Опубликована: Май 10, 2024
Molybdenum
disulfide
(MoS2)-based
materials
for
piezocatalysis
are
unsatisfactory
due
to
their
low
actual
piezoelectric
coefficient
and
poor
electrical
conductivity.
Herein,
1T/3R
phase
MoS2
grown
in
situ
on
multiwalled
carbon
nanotubes
(MWCNTs)
was
proposed.
MoS2@MWCNTs
exhibited
the
interwoven
morphology
of
thin
nanoflowers
tubes,
response
4.07
times
higher
than
that
via
piezoresponse
force
microscopy
(PFM)
characterization.
superior
activity
with
a
91%
degradation
rate
norfloxacin
(NOR)
after
actually
working
24
min
(as
rhodamine
B,
reached
100%
within
18
min)
by
pulse-mode
ultrasonic
vibration-triggered
piezocatalysis.
It
found
removing
pollutants
attributed
synergistic
effect
free
radicals
(•OH
O2•–)
nonfree
radical
(1O2,
key
role)
pathways,
together
innergenerated-H2O2
promoting
rate.
1O2
can
be
generated
electron
transfer
energy
pathways.
The
presence
oxygen
vacancies
(OVs)
induced
transformation
O2
triplet
transfer.
fast
charge
heterostructure
coexistence
sulfur
OVs
enhanced
carrier
separation
resulting
prominent
effect.
This
work
opens
up
new
avenues
development
efficient
piezocatalysts
utilized
environmental
purification.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(39)
Опубликована: Июль 11, 2024
Abstract
Hydrogen
(H
2
)
is
mainly
produced
using
steam
methane
reforming,
electrolysis,
and
gasification,
which
require
external
energy
special
catalysts.
A
new
catalyst
by
combining
MoS
nanoflowers
(NFs)
with
metal
carbide/nitride
nanosheets
(Mo
CTx
MXene)
to
create
a
nanosheet
bending
moment.
The
@Mo
CT
x
heterostructures
achieve
production
rate
of
1164.8
µmol
g
−1
h
under
an
application
mechanical
force,
4.01
3.06
times
higher
than
Mo
alone,
due
enhanced
charge
transfer
from
's
piezoelectricity
conductivity.
This
study
introduces
pioneering
methodology
that
harnesses
gravitational
as
continuous
simulated
peristaltic
pump,
drive
the
piezocatalytic
hydrogen
evolution
reaction
(HER),
achieving
notable
454.1
over
24
hours
demonstrating
sustained
capability
for
generation.
theoretical
calculation
results
validate
piezoelectric
potential
in
water‐flow‐pressure
triggered
HER
systems.
system,
assuming
powered
Hoover
Dam,
will
produce
290.9
kmoles
per
ton
daily,
equivalent
utilizing
19
150
kWh
electrocatalytic
system.
gravity‐driven
water
flow
piezocatalysts
H
generation
demonstrates
superior
efficiency
eliminating
common
thermal
conversion
losses,
marking
significant
breakthrough
sustainable
technologies.
