Bridge‐Oxygen Bond: An Active Group for Energy Electrocatalysis
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 20, 2025
Abstract
Energy
electrocatalytic
reactions
such
as
hydrogen
evolution
reaction,
oxygen
reduction
nitrogen
carbon
etc.,
are
important
to
solve
the
current
energy
shortage
and
increasing
environmental
problems.
Developing
novel
efficient
catalyts
for
these
has
become
an
essential
urgent
issue.
Catalysts
incorporating
bridge‐oxygen
bond
have
received
attention
due
their
superior
conductivity
stability,
which
favorable
optimizing
reaction
mechanism
improving
kinetics.
This
paper
provides
a
comprehensive
review
encompassing
concept
of
bond,
means
characterization,
activity
in
electrocatalysis
effect
on
catalytic
performance.
Through
this
review,
it
is
expected
furnish
valuable
reference
rational
design
catalysts
featuring
structure
across
diverse
reactions.
Язык: Английский
HCP-to-FCC Phase Transformation of Ruthenium Nanocrystals Selectively Activate Hydrogen Peroxide for Boosting Peroxidase-like Activity
ACS Nano,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 8, 2025
Due
to
the
simultaneous
activation
of
hydrogen
peroxide
(H2O2)
and
oxygen,
Ru
nanocrystals
exhibit
inherent
peroxidase-
oxidase-like
activities,
thereby
limiting
their
extensive
application
in
biosensing.
Phase
engineering
holds
great
promise
for
enhancing
catalytic
activity
selectivity
but
remains
a
challenge.
Here,
highly
active
with
metastable
face-centered
cubic
(fcc)
structure
were
successfully
synthesized
via
facile
wet-chemical
method
followed
by
an
etching
step,
enabling
selective
H2O2
demonstrating
promising
peroxidase-like
activity.
Compared
thermodynamically
favored
hexagonal
close-packed
nanocrystals,
resultant
fcc
shows
over
5-fold
enhancement
maximum
reaction
velocity
catalysis,
while
its
performance
exhibits
minor
decline,
indicating
transition
from
multienzyme
specificity.
Theoretical
calculations
reveal
that
phase
transformation
not
only
results
upward
shift
d-band
center
enhance
adsorption
also
regulates
O–O
bonding
strength
achieve
activation.
As
proof
concept,
colorimetric
sensor
based
on
was
constructed,
achieving
accurate
sensitive
detection
organophosphorus
pesticides.
This
work
offers
prospects
highlights
significance
Язык: Английский
Se and N doped hierarchical porous carbon nanozyme-mediated colorimetric sensing array for antioxidants discrimination
Sensors and Actuators B Chemical,
Год журнала:
2025,
Номер
438, С. 137785 - 137785
Опубликована: Апрель 14, 2025
Язык: Английский
Amorphous RuO2 Nanozymes with an Excellent Catalytic Efficiency Superior to Natural Peroxidases
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 25, 2025
Abstract
Developing
efficient
peroxidase‐like
nanozymes
to
surpass
natural
enzymes
remains
a
significant
challenge.
Herein,
an
amorphous
RuO
2
nanozyme
with
activity
is
synthesized
for
activating
H
O
specific
of
1492.52
U
mg
−1
,
outperforming
the
crystalline
by
factor
22
and
far
superior
peroxidases.
Amorphous
long‐range
disordered
atomic
arrangements
can
effectively
elongate
O─O
bonds
in
.
Abundant
oxygen
vacancies
lead
upshift
d
‐band
center,
enhancing
exceptional
adsorption
strength
which
improve
electron
transfer
efficiency
ensure
activity.
Accordingly,
nanozyme‐linked
immunosorbent
assay
developed
precise
sensitive
detection
prostate‐specific
antigens
limit
as
low
0.52
pg
mL
This
study
introduces
simple
approach
developing
high‐performance
analytical
performances
clinical
diagnostics.
Язык: Английский