Dual
atomic
nanozymes
(DAzymes)
are
promising
for
applications
in
the
field
of
tumor
catalytic
therapy.
Here,
integrating
with
ultrasmall
Fe5C2
nanoclusters,
asymmetric
coordination
featuring
Janus
Zn-Fe
dual-atom
sites
an
O2N2-Fe-Zn-N4
moiety
embedded
a
carbon
vacancy-engineered
hollow
nanobox
(Janus
ZnFe
DAs-Fe5C2)
was
elaborately
developed.
Theoretical
calculation
revealed
that
synergistic
effects
Zn
centers
acting
as
both
adsorption
and
active
sites,
oxygen-heteroatom
doping,
vacancy,
nanoclusters
jointly
downshifted
d-band
center
Fe
3d
orbitals,
optimizing
desorption
behaviors
intermediates
*OH,
thereby
significantly
promoting
activity.
Upon
1064
nm
laser
irradiation,
DAs-Fe5C2
superior
photothermal
conversion
efficiency
(η
=
62.5%)
showed
thermal-augmented
Fascinatingly,
multienzymatic
properties
can
suppress
expression
glutathione
peroxidase
4
accelerate
accumulation
lipid
peroxides,
through
which
ferroptosis
is
triggered.
Overall,
tannin-involved
will
inspire
more
inventions
biodegradable
DAzymes
therapy
application.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(14), С. 10084 - 10092
Опубликована: Март 26, 2024
Glycine
is
a
nonessential
amino
acid
that
plays
vital
role
in
various
biological
activities.
However,
the
conventional
synthesis
of
glycine
requires
sophisticated
procedures
or
toxic
feedstocks.
Herein,
we
report
an
electrochemical
pathway
for
via
reductive
coupling
oxalic
and
nitrate
nitrogen
oxides
over
atomically
dispersed
Fe–N–C
catalysts.
A
selectivity
70.7%
achieved
Fe–N–C-700
at
−1.0
V
versus
RHE.
Synergy
between
FeN3C
structure
pyrrolic
facilitates
reduction
to
glyoxylic
acid,
which
crucial
producing
oxime
glycine,
could
reduce
energy
barrier
*HOOCCH2NH2
intermediate
formation
thus
accelerating
conversion
glycine.
This
new
approach
value-added
chemicals
using
simple
carbon
sources
provide
sustainable
routes
organonitrogen
compound
production.
Chemical Science,
Год журнала:
2024,
Номер
15(29), С. 11188 - 11228
Опубликована: Янв. 1, 2024
The
oxygen
reduction
reaction
(ORR)
is
a
key
component
for
many
clean
energy
technologies
and
other
industrial
processes.
However,
the
low
selectivity
sluggish
kinetics
of
ORR
catalysts
have
hampered
conversion
efficiency
real
application
these
new
mentioned
before.
Recently,
tremendous
efforts
been
made
in
mechanism
understanding,
electrocatalyst
development
system
design.
Here,
comprehensive
critical
review
provided
to
present
recent
advances
field
electrocatalytic
ORR.
two-electron
four-electron
transfer
catalytic
mechanisms
evaluation
parameters
are
discussed
first.
Then,
up-to-date
synthetic
strategies
Chemical Reviews,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 18, 2025
The
electrocatalytic
technique,
as
an
efficient
energy
storage
and
conversion
technology,
has
attracted
significant
attention
to
address
exhaustion
environmental
pollution.
Usually,
the
activity
selectivity
of
reactions
are
largely
dominated
by
dynamic
process
occurring
on
electrocatalysts.
Therefore,
high-performance
electrocatalysts,
which
can
dominate
pathway
barrier
reactions,
great
significance
for
advancement
technique.
Metal-organic
frameworks
(MOFs),
emerging
crystalline
porous
materials,
present
structural
component
advantages
including
well-defined
structure,
high
surface
area,
large
porosity,
diverse
components,
easy
tailorability,
demonstrating
fantastic
potential
precise
fabrication
In
this
Review,
strategies
in
electrocatalysts
based
MOF-related
materials
specifically
introduced
from
aspects
catalytic
site
design
microenvironment
modulation
around
sites.
Furthermore,
representative
progress
achieved
various
applications
employing
MOF-based
is
systematically
summarized,
with
special
emphasis
MOFs
performance
optimization.
Finally,
remaining
challenges
future
perspectives
further
highlighted.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(38)
Опубликована: Июнь 21, 2024
Electrochemical
reduction
reactions,
as
cathodic
processes
in
many
energy-related
devices,
significantly
impact
the
overall
efficiency
determined
mainly
by
performance
of
electrocatalysts.
Metal-organic
frameworks
(MOFs)
derived
carbon-supported
metal
materials
have
become
one
star
electrocatalysts
due
to
their
tunable
structure
and
composition
through
ligand
design
screening.
However,
for
different
electroreduction
required
active
species
vary
phase
component,
electronic
state,
catalytic
center
configuration,
hence
requiring
effective
customization.
From
this
perspective,
review
comprehensively
analyzes
structural
principles,
loading
strategies,
practical
performance,
complex
mechanisms,
thereby
providing
insights
guidance
future
rational
such
catalysts.
