Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(44)
Опубликована: Авг. 1, 2024
Abstract
For
piezoelectric
catalysis,
the
catalytic
mechanism
is
a
topic
of
great
controversy,
with
debates
centered
around
whether
it
belongs
to
energy
band
theory
or
screening
charge
effect
which
are
similar
mechanisms
photocatalysis
and
electrochemical
respectively.
Due
formation
different
intermediate
active‐species
during
two‐electron
oxygen
reduction
reaction
(ORR)
via
electro‐
photo‐catalysis,
key
solving
this
problem
precisely
monitoring
active
species
involved
in
ORR
electro‐,
photo‐,
piezo‐catalysis
under
identical
condition.
Here,
semiconductor
material,
BiOBr
abundant
vacancies
(BOB‐OV)
was
found
remarkable
activity
H
2
O
production
by
all
three
methods.
By
employing
situ
electron
paramagnetic
resonance
(EPR)
spectroscopy,
evolution
pathway
through
over
BOB‐OV
monitored,
showed
that
observed
photo‐catalytic
process.
This
finding
represents
solid
evidence
supporting
notion
piezo‐catalytic
more
inclined
towards
photo‐catalysis
rather
than
electro‐catalysis.
Significantly,
exploratory
conclusion
provides
insight
deepen
our
understanding
piezo‐catalysis.
Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
62(5)
Опубликована: Ноя. 1, 2022
Abstract
As
a
consequence
of
rapid
industrialization
throughout
the
world,
various
environmental
pollutants
have
begun
to
accumulate
in
water,
air,
and
soil.
This
endangers
ecological
environment
earth,
remediation
has
become
an
immediate
priority.
Among
techniques,
piezocatalytic
which
uniquely
take
advantage
piezoelectric
effect,
attracted
much
attention.
Piezoelectric
effects
allow
pollutant
degradation
directly,
while
also
enhancing
photocatalysis
by
reducing
recombination
photogenerated
carriers.
In
this
Review,
we
provide
comprehensive
summary
recent
developments
techniques
for
remediation.
The
origin
effect
as
well
classification
materials
their
application
are
systematically
summarized.
We
analyze
potential
underlying
mechanisms.
Finally,
urgent
problems
future
development
discussed.
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(11)
Опубликована: Янв. 29, 2023
Abstract
Recent
years
have
witnessed
an
upsurge
of
interest
in
exploiting
advanced
photo‐/electrocatalysts
for
efficient
energy
conversion
and
environmental
remediation.
Constructing
internal
electric
fields
has
been
highlighted
as
a
rising
star
to
help
facilitate
various
catalytic
processes,
with
the
merits
promoting
charge
transfer/separation,
optimizing
redox
potential
creating
effective
active/adsorption
sites.
Internal
are
usually
formed
by
polarization
uneven
distributions
between
different
constituent
layers,
which
widely
exist
piezoelectrics,
polar
surface
terminations,
heterostructure
materials.
Herein,
groundbreaking
interdisciplinary
overview
latest
advances
construction
improve
photo(electro)catalytic
electrocatalytic
activity
is
provided.
This
critical
review
begins
encyclopedic
summary
classification,
advantages,
synthesis
strategies
fields.
Subsequently,
identification
methods
thoroughly
discussed
based
on
characterization
techniques,
experiments,
theoretical
calculations,
can
provide
profound
guidance
in‐depth
study
To
elaborate
theory–structure–activity
relationships
fields,
corresponding
reaction
mechanisms,
modification
strategies,
performance
jointly
discussed,
along
discussion
their
practical
applications.
Finally,
insightful
analysis
challenges
future
prospects
field‐based
catalysts
discussed.
Energy & Environmental Science,
Год журнала:
2023,
Номер
17(2), С. 518 - 530
Опубликована: Дек. 7, 2023
A
new
all-in-one
design
concept
of
constructing
photochromic
single
atom
photocatalysts
is
proposed
to
achieve
both
high
activity
and
selectivity
photocatalytic
CO
2
-to-CH
4
conversion.
Abstract
Piezocatalysis
is
an
emerging
technique
that
holds
great
promise
for
the
conversion
of
ubiquitous
mechanical
energy
into
electrochemical
through
piezoelectric
effect.
However,
energies
in
natural
environment
(such
as
wind
energy,
water
flow
and
noise)
are
typically
tiny,
scattered,
featured
with
low
frequency
power.
Therefore,
a
high
response
to
these
tiny
critical
achieving
piezocatalytic
performance.
In
comparison
nanoparticles
or
1D
materials,
2D
materials
possess
characteristics
such
flexibility,
easy
deformation,
large
surface
area,
rich
active
sites,
showing
more
future
practical
applications.
this
review,
state‐of‐the‐art
research
progresses
on
their
applications
piezocatalysis
provided.
First,
detailed
description
offered.
Then
comprehensive
summary
presented
examines
various
fields,
including
environmental
remediation,
small‐molecule
catalysis,
biomedicine.
Finally,
main
challenges
prospects
discussed.
It
expected
review
can
fuel
application
piezocatalysis.
Advanced Materials,
Год журнала:
2023,
Номер
35(21)
Опубликована: Март 6, 2023
Piezo-electrocatalysis
as
an
emerging
mechano-to-chemistry
energy
conversion
technique
opens
multiple
innovative
opportunities
and
draws
great
interest
over
the
past
decade.
However,
two
potential
mechanisms
in
piezo-electrocatalysis,
i.e.,
screening
charge
effect
band
theory,
generally
coexist
most
piezoelectrics,
making
essential
mechanism
remain
controversial.
Here,
for
first
time,
piezo-electrocatalytic
CO2
reduction
reaction
(PECRR)
is
distinguished
through
a
narrow-bandgap
piezo-electrocatalyst
strategy
using
MoS2
nanoflakes
demo.
With
conduction
of
-0.12
eV,
are
unsatisfied
-to-CO
redox
-0.53
yet
they
achieve
ultrahigh
CO
yield
≈543.1
µmol
g-1
h-1
PECRR.
Potential
position
shifts
under
vibration
still
with
verified
by
theoretical
investigation
piezo-photocatalytic
experiment,
further
indicating
that
piezo-electrocatalysis
independent
position.
Besides,
exhibit
unexpected
intense
"breathing"
enable
naked-eye-visible
inhalation
gas,
independently
achieving
complete
carbon
cycle
chain
from
capture
to
conversion.
The
processes
PECRR
revealed
self-designed
situ
cell.
This
work
brings
new
insights
into
surface
evolution
piezo-electrocatalysis.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(33)
Опубликована: Июнь 8, 2023
Converting
CO2
into
high-value
C2
chemicals
such
as
acetate
with
high
selectivity
and
efficiency
is
a
critical
issue
in
renewable
energy
storage.
Herein,
for
the
first
time
we
present
vibration-driven
piezocatalysis
tin(II)
monosulfide
(SnS)
nanobelts
conversion
of
to
100
%
selectivity,
highest
production
rate
(2.21
mM
h-1
)
compared
reported
catalysts.
Mechanism
analysis
reveal
that
polarized
charges
triggered
by
periodic
mechanical
vibration
promote
adsorption
activation
.
The
electron
transfer
can
be
facilitated
due
built-in
electric
field,
decreased
band
gap
work
function
SnS
under
stress.
Remarkably,
reduced
distance
between
active
sites
leads
charge
enrichment
on
Sn
sites,
promoting
C-C
coupling,
reducing
barriers
determining
step.
It
puts
forward
bran-new
strategy
converting
products
efficient,
low-cost
environment-friendly
utilizing
energy.
